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4960 lines
229 KiB
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4960 lines
229 KiB
Plaintext
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Release Notes
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Release 7.4
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Release date: 2003-11-17
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_________________________________________________________________
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Overview
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Major changes in this release:
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IN / NOT IN subqueries are now much more efficient
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In previous releases, IN/NOT IN subqueries were joined to the
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upper query by sequentially scanning the subquery looking for a
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match. The 7.4 code uses the same sophisticated techniques used
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by ordinary joins and so is much faster. An IN will now usually
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be as fast as or faster than an equivalent EXISTS subquery;
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this reverses the conventional wisdom that applied to previous
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releases.
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Improved GROUP BY processing by using hash buckets
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In previous releases, rows to be grouped had to be sorted
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first. The 7.4 code can do GROUP BY without sorting, by
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accumulating results into a hash table with one entry per
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group. It will still use the sort technique, however, if the
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hash table is estimated to be too large to fit in sort_mem.
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New multikey hash join capability
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In previous releases, hash joins could only occur on single
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keys. This release allows multicolumn hash joins.
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Queries using the explicit JOIN syntax are now better optimized
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Prior releases evaluated queries using the explicit JOIN syntax
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only in the order implied by the syntax. 7.4 allows full
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optimization of these queries, meaning the optimizer considers
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all possible join orderings and chooses the most efficient.
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Outer joins, however, must still follow the declared ordering.
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Faster and more powerful regular expression code
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The entire regular expression module has been replaced with a
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new version by Henry Spencer, originally written for Tcl. The
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code greatly improves performance and supports several flavors
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of regular expressions.
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Function-inlining for simple SQL functions
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Simple SQL functions can now be inlined by including their SQL
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in the main query. This improves performance by eliminating
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per-call overhead. That means simple SQL functions now behave
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like macros.
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Full support for IPv6 connections and IPv6 address data types
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Previous releases allowed only IPv4 connections, and the IP
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data types only supported IPv4 addresses. This release adds
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full IPv6 support in both of these areas.
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Major improvements in SSL performance and reliability
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Several people very familiar with the SSL API have overhauled
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our SSL code to improve SSL key negotiation and error recovery.
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Make free space map efficiently reuse empty index pages, and other
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free space management improvements
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In previous releases, B-tree index pages that were left empty
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because of deleted rows could only be reused by rows with index
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values similar to the rows originally indexed on that page. In
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7.4, "VACUUM" records empty index pages and allows them to be
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reused for any future index rows.
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SQL-standard information schema
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The information schema provides a standardized and stable way
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to access information about the schema objects defined in a
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database.
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Cursors conform more closely to the SQL standard
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The commands "FETCH" and "MOVE" have been overhauled to conform
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more closely to the SQL standard.
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Cursors can exist outside transactions
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These cursors are also called holdable cursors.
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New client-to-server protocol
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The new protocol adds error codes, more status information,
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faster startup, better support for binary data transmission,
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parameter values separated from SQL commands, prepared
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statements available at the protocol level, and cleaner
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recovery from "COPY" failures. The older protocol is still
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supported by both server and clients.
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libpq and ECPG applications are now fully thread-safe
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While previous libpq releases already supported threads, this
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release improves thread safety by fixing some non-thread-safe
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code that was used during database connection startup. The
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"configure" option "--enable-thread-safety" must be used to
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enable this feature.
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New version of full-text indexing
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A new full-text indexing suite is available in
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"contrib/tsearch2".
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New autovacuum tool
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The new autovacuum tool in "contrib/autovacuum" monitors the
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database statistics tables for "INSERT"/"UPDATE"/"DELETE"
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activity and automatically vacuums tables when needed.
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Array handling has been improved and moved into the server core
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Many array limitations have been removed, and arrays behave
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more like fully-supported data types.
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_________________________________________________________________
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Migration to version 7.4
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A dump/restore using pg_dump is required for those wishing to migrate
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data from any previous release.
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Observe the following incompatibilities:
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* The server-side autocommit setting was removed and reimplemented
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in client applications and languages. Server-side autocommit was
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causing too many problems with languages and applications that
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wanted to control their own autocommit behavior, so autocommit was
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removed from the server and added to individual client APIs as
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appropriate.
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* Error message wording has changed substantially in this release.
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Significant effort was invested to make the messages more
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consistent and user-oriented. If your applications try to detect
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different error conditions by parsing the error message, you are
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strongly encouraged to use the new error code facility instead.
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* Inner joins using the explicit JOIN syntax may behave differently
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because they are now better optimized.
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* A number of server configuration parameters have been renamed for
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clarity, primarily those related to logging.
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* FETCH 0 or MOVE 0 now does nothing. In prior releases, FETCH 0
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would fetch all remaining rows, and MOVE 0 would move to the end
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of the cursor.
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* "FETCH" and "MOVE" now return the actual number of rows
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fetched/moved, or zero if at the beginning/end of the cursor.
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Prior releases would return the row count passed to the command,
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not the number of rows actually fetched or moved.
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* "COPY" now can process files that use carriage-return or
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carriage-return/line-feed end-of-line sequences. Literal
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carriage-returns and line-feeds are no longer accepted in data
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values; use \r and \n instead.
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* Trailing spaces are now trimmed when converting from type char(n)
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to varchar(n) or text. This is what most people always expected to
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happen anyway.
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* The data type float(p) now measures "p" in binary digits, not
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decimal digits. The new behavior follows the SQL standard.
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* Ambiguous date values now must match the ordering specified by the
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datestyle setting. In prior releases, a date specification of
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10/20/03 was interpreted as a date in October even if datestyle
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specified that the day should be first. 7.4 will throw an error if
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a date specification is invalid for the current setting of
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datestyle.
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* The functions oidrand, oidsrand, and userfntest have been removed.
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These functions were determined to be no longer useful.
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* String literals specifying time-varying date/time values, such as
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'now' or 'today' will no longer work as expected in column default
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expressions; they now cause the time of the table creation to be
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the default, not the time of the insertion. Functions such as
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now(), current_timestamp, or current_date should be used instead.
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In previous releases, there was special code so that strings such
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as 'now' were interpreted at "INSERT" time and not at table
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creation time, but this work around didn't cover all cases.
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Release 7.4 now requires that defaults be defined properly using
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functions such as now() or current_timestamp. These will work in
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all situations.
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* The dollar sign ($) is no longer allowed in operator names. It can
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instead be a non-first character in identifiers. This was done to
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improve compatibility with other database systems, and to avoid
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syntax problems when parameter placeholders ($n) are written
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adjacent to operators.
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_________________________________________________________________
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Changes
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Below you will find a detailed account of the changes between release
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7.4 and the previous major release.
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_________________________________________________________________
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Server Operation Changes
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* Allow IPv6 server connections (Nigel Kukard, Johan Jordaan, Bruce,
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Tom, Kurt Roeckx, Andrew Dunstan)
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* Fix SSL to handle errors cleanly (Nathan Mueller)
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In prior releases, certain SSL API error reports were not handled
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correctly. This release fixes those problems.
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* SSL protocol security and performance improvements (Sean
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Chittenden)
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SSL key renegotiation was happening too frequently, causing poor
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SSL performance. Also, initial key handling was improved.
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* Print lock information when a deadlock is detected (Tom)
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This allows easier debugging of deadlock situations.
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* Update "/tmp" socket modification times regularly to avoid their
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removal (Tom)
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This should help prevent "/tmp" directory cleaner administration
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scripts from removing server socket files.
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* Enable PAM for Mac OS X (Aaron Hillegass)
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* Make B-tree indexes fully WAL-safe (Tom)
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In prior releases, under certain rare cases, a server crash could
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cause B-tree indexes to become corrupt. This release removes those
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last few rare cases.
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* Allow B-tree index compaction and empty page reuse (Tom)
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* Fix inconsistent index lookups during split of first root page
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(Tom)
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In prior releases, when a single-page index split into two pages,
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there was a brief period when another database session could miss
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seeing an index entry. This release fixes that rare failure case.
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* Improve free space map allocation logic (Tom)
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* Preserve free space information between server restarts (Tom)
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In prior releases, the free space map was not saved when the
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postmaster was stopped, so newly started servers had no free space
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information. This release saves the free space map, and reloads it
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when the server is restarted.
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* Add start time to pg_stat_activity (Neil)
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* New code to detect corrupt disk pages; erase with
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zero_damaged_pages (Tom)
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* New client/server protocol: faster, no username length limit,
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allow clean exit from "COPY" (Tom)
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* Add transaction status, table ID, column ID to client/server
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protocol (Tom)
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* Add binary I/O to client/server protocol (Tom)
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* Remove autocommit server setting; move to client applications
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(Tom)
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* New error message wording, error codes, and three levels of error
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detail (Tom, Joe, Peter)
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_________________________________________________________________
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Performance Improvements
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* Add hashing for GROUP BY aggregates (Tom)
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* Make nested-loop joins be smarter about multicolumn indexes (Tom)
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* Allow multikey hash joins (Tom)
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* Improve constant folding (Tom)
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* Add ability to inline simple SQL functions (Tom)
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* Reduce memory usage for queries using complex functions (Tom)
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In prior releases, functions returning allocated memory would not
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free it until the query completed. This release allows the freeing
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of function-allocated memory when the function call completes,
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reducing the total memory used by functions.
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* Improve GEQO optimizer performance (Tom)
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This release fixes several inefficiencies in the way the GEQO
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optimizer manages potential query paths.
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* Allow IN/NOT IN to be handled via hash tables (Tom)
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* Improve NOT IN (subquery) performance (Tom)
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* Allow most IN subqueries to be processed as joins (Tom)
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* Pattern matching operations can use indexes regardless of locale
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(Peter)
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There is no way for non-ASCII locales to use the standard indexes
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for LIKE comparisons. This release adds a way to create a special
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index for LIKE.
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* Allow the postmaster to preload libraries using preload_libraries
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(Joe)
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For shared libraries that require a long time to load, this option
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is available so the library can be preloaded in the postmaster and
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inherited by all database sessions.
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* Improve optimizer cost computations, particularly for subqueries
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(Tom)
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* Avoid sort when subquery ORDER BY matches upper query (Tom)
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* Deduce that WHERE a.x = b.y AND b.y = 42 also means a.x = 42 (Tom)
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* Allow hash/merge joins on complex joins (Tom)
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* Allow hash joins for more data types (Tom)
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* Allow join optimization of explicit inner joins, disable with
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join_collapse_limit (Tom)
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* Add parameter from_collapse_limit to control conversion of
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subqueries to joins (Tom)
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* Use faster and more powerful regular expression code from Tcl
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(Henry Spencer, Tom)
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* Use bit-mapped relation sets in the optimizer (Tom)
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* Improve connection startup time (Tom)
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The new client/server protocol requires fewer network packets to
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start a database session.
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* Improve trigger/constraint performance (Stephan)
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* Improve speed of col IN (const, const, const, ...) (Tom)
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* Fix hash indexes which were broken in rare cases (Tom)
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* Improve hash index concurrency and speed (Tom)
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Prior releases suffered from poor hash index performance,
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particularly for high concurrency situations. This release fixes
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that, and the development group is interested in reports comparing
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B-tree and hash index performance.
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* Align shared buffers on 32-byte boundary for copy speed
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improvement (Manfred Spraul)
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Certain CPU's perform faster data copies when addresses are
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32-byte aligned.
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* Data type numeric reimplemented for better performance (Tom)
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numeric used to be stored in base 100. The new code uses base
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10000, for significantly better performance.
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_________________________________________________________________
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Server Configuration Changes
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* Rename server parameter server_min_messages to log_min_messages
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(Bruce)
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This was done so most parameters that control the server logs
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begin with log_.
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* Rename show_*_stats to log_*_stats (Bruce)
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* Rename show_source_port to log_source_port (Bruce)
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* Rename hostname_lookup to log_hostname (Bruce)
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* Add checkpoint_warning to warn of excessive checkpointing (Bruce)
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In prior releases, it was difficult to determine if checkpoint was
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happening too frequently. This feature adds a warning to the
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server logs when excessive checkpointing happens.
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* New read-only server parameters for localization (Tom)
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* Change debug server log messages to output as DEBUG rather than
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LOG (Bruce)
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* Prevent server log variables from being turned off by
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non-superusers (Bruce)
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This is a security feature so non-superusers cannot disable
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logging that was enabled by the administrator.
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* log_min_messages/client_min_messages now controls debug_* output
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(Bruce)
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This centralizes client debug information so all debug output can
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be sent to either the client or server logs.
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* Add Mac OS X Rendezvous server support (Chris Campbell)
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This allows Mac OS X hosts to query the network for available
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PostgreSQL servers.
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* Add ability to print only slow statements using
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log_min_duration_statement (Christopher)
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This is an often requested debugging feature that allows
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administrators to see only slow queries in their server logs.
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* Allow "pg_hba.conf" to accept netmasks in CIDR format (Andrew
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Dunstan)
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This allows administrators to merge the host IP address and
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netmask fields into a single CIDR field in "pg_hba.conf".
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* New read-only parameter is_superuser (Tom)
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* New parameter log_error_verbosity to control error detail (Tom)
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This works with the new error reporting feature to supply
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additional error information like hints, file names and line
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numbers.
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* postgres --describe-config now dumps server config variables
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(Aizaz Ahmed, Peter)
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This option is useful for administration tools that need to know
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the configuration variable names and their minimums, maximums,
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defaults, and descriptions.
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* Add new columns in pg_settings: context, type, source, min_val,
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max_val (Joe)
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* Make default shared_buffers 1000 and max_connections 100, if
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possible (Tom)
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Prior versions defaulted to 64 shared buffers so PostgreSQL would
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start on even very old systems. This release tests the amount of
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shared memory allowed by the platform and selects more reasonable
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default values if possible. Of course, users are still encouraged
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to evaluate their resource load and size shared_buffers
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accordingly.
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* New "pg_hba.conf" record type hostnossl to prevent SSL connections
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(Jon Jensen)
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In prior releases, there was no way to prevent SSL connections if
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both the client and server supported SSL. This option allows that
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capability.
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* Remove parameter geqo_random_seed (Tom)
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* Add server parameter regex_flavor to control regular expression
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processing (Tom)
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* Make "pg_ctl" better handle nonstandard ports (Greg)
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_________________________________________________________________
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Query Changes
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* New SQL-standard information schema (Peter)
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* Add read-only transactions (Peter)
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* Print key name and value in foreign-key violation messages (Dmitry
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Tkach)
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* Allow users to see their own queries in pg_stat_activity (Kevin
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Brown)
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In prior releases, only the superuser could see query strings
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using pg_stat_activity. Now ordinary users can see their own query
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strings.
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* Fix aggregates in subqueries to match SQL standard (Tom)
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The SQL standard says that an aggregate function appearing within
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a nested subquery belongs to the outer query if its argument
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contains only outer-query variables. Prior PostgreSQL releases did
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not handle this fine point correctly.
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* Add option to prevent auto-addition of tables referenced in query
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||
(Nigel J. Andrews)
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By default, tables mentioned in the query are automatically added
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to the FROM clause if they are not already there. This is
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compatible with historic POSTGRES behavior but is contrary to the
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SQL standard. This option allows selecting standard-compatible
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behavior.
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* Allow UPDATE ... SET col = DEFAULT (Rod)
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This allows "UPDATE" to set a column to its declared default
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value.
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* Allow expressions to be used in LIMIT/OFFSET (Tom)
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In prior releases, LIMIT/OFFSET could only use constants, not
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expressions.
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* Implement CREATE TABLE AS EXECUTE (Neil, Peter)
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_________________________________________________________________
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Object Manipulation Changes
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||
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* Make "CREATE SEQUENCE" grammar more conforming to SQL 2003 (Neil)
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* Add statement-level triggers (Neil)
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While this allows a trigger to fire at the end of a statement, it
|
||
does not allow the trigger to access all rows modified by the
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statement. This capability is planned for a future release.
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* Add check constraints for domains (Rod)
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This greatly increases the usefulness of domains by allowing them
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to use check constraints.
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* Add "ALTER DOMAIN" (Rod)
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This allows manipulation of existing domains.
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* Fix several zero-column table bugs (Tom)
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||
PostgreSQL supports zero-column tables. This fixes various bugs
|
||
that occur when using such tables.
|
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* Have ALTER TABLE ... ADD PRIMARY KEY add not-null constraint (Rod)
|
||
In prior releases, ALTER TABLE ... ADD PRIMARY would add a unique
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||
index, but not a not-null constraint. That is fixed in this
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||
release.
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* Add ALTER TABLE ... WITHOUT OIDS (Rod)
|
||
This allows control over whether new and updated rows will have an
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OID column. This is most useful for saving storage space.
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||
* Add ALTER SEQUENCE to modify minimum, maximum, increment, cache,
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cycle values (Rod)
|
||
* Add ALTER TABLE ... CLUSTER ON (Alvaro Herrera)
|
||
This command is used by "pg_dump" to record the cluster column for
|
||
each table previously clustered. This information is used by
|
||
database-wide cluster to cluster all previously clustered tables.
|
||
* Improve automatic type casting for domains (Rod, Tom)
|
||
* Allow dollar signs in identifiers, except as first character (Tom)
|
||
* Disallow dollar signs in operator names, so x=$1 works (Tom)
|
||
* Allow copying table schema using LIKE subtable, also SQL 2003
|
||
feature INCLUDING DEFAULTS (Rod)
|
||
* Add WITH GRANT OPTION clause to "GRANT" (Peter)
|
||
This enabled "GRANT" to give other users the ability to grant
|
||
privileges on a object.
|
||
_________________________________________________________________
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||
|
||
Utility Command Changes
|
||
|
||
* Add ON COMMIT clause to "CREATE TABLE" for temporary tables
|
||
(Gavin)
|
||
This adds the ability for a table to be dropped or all rows
|
||
deleted on transaction commit.
|
||
* Allow cursors outside transactions using WITH HOLD (Neil)
|
||
In previous releases, cursors were removed at the end of the
|
||
transaction that created them. Cursors can now be created with the
|
||
WITH HOLD option, which allows them to continue to be accessed
|
||
after the creating transaction has committed.
|
||
* FETCH 0 and MOVE 0 now do nothing (Bruce)
|
||
In previous releases, FETCH 0 fetched all remaining rows, and MOVE
|
||
0 moved to the end of the cursor.
|
||
* Cause "FETCH" and "MOVE" to return the number of rows
|
||
fetched/moved, or zero if at the beginning/end of cursor, per SQL
|
||
standard (Bruce)
|
||
In prior releases, the row count returned by "FETCH" and "MOVE"
|
||
did not accurately reflect the number of rows processed.
|
||
* Properly handle SCROLL with cursors, or report an error (Neil)
|
||
Allowing random access (both forward and backward scrolling) to
|
||
some kinds of queries cannot be done without some additional work.
|
||
If SCROLL is specified when the cursor is created, this additional
|
||
work will be performed. Furthermore, if the cursor has been
|
||
created with NO SCROLL, no random access is allowed.
|
||
* Implement SQL-compatible options FIRST, LAST, ABSOLUTE n, RELATIVE
|
||
n for "FETCH" and "MOVE" (Tom)
|
||
* Allow "EXPLAIN" on "DECLARE CURSOR" (Tom)
|
||
* Allow "CLUSTER" to use index marked as pre-clustered by default
|
||
(Alvaro Herrera)
|
||
* Allow "CLUSTER" to cluster all tables (Alvaro Herrera)
|
||
This allows all previously clustered tables in a database to be
|
||
reclustered with a single command.
|
||
* Prevent "CLUSTER" on partial indexes (Tom)
|
||
* Allow DOS and Mac line-endings in "COPY" files (Bruce)
|
||
* Disallow literal carriage return as a data value,
|
||
backslash-carriage-return and \r are still allowed (Bruce)
|
||
* "COPY" changes (binary, \.) (Tom)
|
||
* Recover from "COPY" failure cleanly (Tom)
|
||
* Prevent possible memory leaks in "COPY" (Tom)
|
||
* Make "TRUNCATE" transaction-safe (Rod)
|
||
"TRUNCATE" can now be used inside a transaction. If the
|
||
transaction aborts, the changes made by the "TRUNCATE" are
|
||
automatically rolled back.
|
||
* Allow prepare/bind of utility commands like "FETCH" and "EXPLAIN"
|
||
(Tom)
|
||
* Add "EXPLAIN EXECUTE" (Neil)
|
||
* Improve "VACUUM" performance on indexes by reducing WAL traffic
|
||
(Tom)
|
||
* Functional indexes have been generalized into indexes on
|
||
expressions (Tom)
|
||
In prior releases, functional indexes only supported a simple
|
||
function applied to one or more column names. This release allows
|
||
any type of scalar expression.
|
||
* Have "SHOW TRANSACTION ISOLATION" match input to "SET TRANSACTION
|
||
ISOLATION" (Tom)
|
||
* Have "COMMENT ON DATABASE" on nonlocal database generate a warning
|
||
(Rod)
|
||
Database comments are stored in database-local tables so comments
|
||
on a database have to be stored in each database.
|
||
* Improve reliability of "LISTEN"/"NOTIFY" (Tom)
|
||
* Allow "REINDEX" to reliably reindex nonshared system catalog
|
||
indexes (Tom)
|
||
This allows system tables to be reindexed without the requirement
|
||
of a standalone session, which was necessary in previous releases.
|
||
The only tables that now require a standalone session for
|
||
reindexing are the global system tables pg_database, pg_shadow,
|
||
and pg_group.
|
||
_________________________________________________________________
|
||
|
||
Data Type and Function Changes
|
||
|
||
* New server parameter extra_float_digits to control precision
|
||
display of floating-point numbers (Pedro Ferreira, Tom)
|
||
This controls output precision which was causing regression
|
||
testing problems.
|
||
* Allow +1300 as a numeric time-zone specifier, for FJST (Tom)
|
||
* Remove rarely used functions oidrand, oidsrand, and userfntest
|
||
functions (Neil)
|
||
* Add md5() function to main server, already in "contrib/pgcrypto"
|
||
(Joe)
|
||
An MD5 function was frequently requested. For more complex
|
||
encryption capabilities, use "contrib/pgcrypto".
|
||
* Increase date range of timestamp (John Cochran)
|
||
* Change EXTRACT(EPOCH FROM timestamp) so timestamp without time
|
||
zone is assumed to be in local time, not GMT (Tom)
|
||
* Trap division by zero in case the operating system doesn't prevent
|
||
it (Tom)
|
||
* Change the numeric data type internally to base 10000 (Tom)
|
||
* New hostmask() function (Greg Wickham)
|
||
* Fixes for to_char() and to_timestamp() (Karel)
|
||
* Allow functions that can take any argument data type and return
|
||
any data type, using anyelement and anyarray (Joe)
|
||
This allows the creation of functions that can work with any data
|
||
type.
|
||
* Arrays may now be specified as ARRAY[1,2,3],
|
||
ARRAY[['a','b'],['c','d']], or ARRAY[ARRAY[ARRAY[2]]] (Joe)
|
||
* Allow proper comparisons for arrays, including ORDER BY and
|
||
DISTINCT support (Joe)
|
||
* Allow indexes on array columns (Joe)
|
||
* Allow array concatenation with || (Joe)
|
||
* Allow WHERE qualification expr op ANY/SOME/ALL (array_expr) (Joe)
|
||
This allows arrays to behave like a list of values, for purposes
|
||
like SELECT * FROM tab WHERE col IN (array_val).
|
||
* New array functions array_append, array_cat, array_lower,
|
||
array_prepend, array_to_string, array_upper, string_to_array (Joe)
|
||
* Allow user defined aggregates to use polymorphic functions (Joe)
|
||
* Allow assignments to empty arrays (Joe)
|
||
* Allow 60 in seconds fields of time, timestamp, and interval input
|
||
values (Tom)
|
||
Sixty-second values are needed for leap seconds.
|
||
* Allow cidr data type to be cast to text (Tom)
|
||
* Disallow invalid time zone names (Tom)
|
||
* Trim trailing spaces when char is cast to varchar or text (Tom)
|
||
* Make float(p) measure the precision "p" in binary digits, not
|
||
decimal digits (Tom)
|
||
* Add IPv6 support to the inet and cidr data types (Michael Graff)
|
||
* Add family() function to report whether address is IPv4 or IPv6
|
||
(Michael Graff)
|
||
* Have SHOW datestyle generate output similar to that used by SET
|
||
datestyle (Tom)
|
||
* Make EXTRACT(TIMEZONE) and SET/SHOW TIME ZONE follow the SQL
|
||
convention for the sign of time zone offsets, i.e., positive is
|
||
east from UTC (Tom)
|
||
* Fix date_trunc('quarter', ...) (B<>jthe Zolt<6C>n)
|
||
Prior releases returned an incorrect value for this function call.
|
||
* Make initcap() more compatible with Oracle (Mike Nolan)
|
||
initcap() now uppercases a letter appearing after any
|
||
non-alphanumeric character, rather than only after whitespace.
|
||
* Allow only datestyle field order for date values not in ISO-8601
|
||
format (Greg)
|
||
* Add new datestyle values MDY, DMY, and YMD to set input field
|
||
order; honor US and European for backward compatibility (Tom)
|
||
* String literals like 'now' or 'today' will no longer work as a
|
||
column default. Use functions such as now(), current_timestamp
|
||
instead. (change required for prepared statements) (Tom)
|
||
* Treat NaN as larger than any other value in min()/max() (Tom)
|
||
NaN was already sorted after ordinary numeric values for most
|
||
purposes, but min() and max() didn't get this right.
|
||
* Prevent interval from suppressing :00 seconds display
|
||
* New function pg_get_triggerdef(prettyprint) and
|
||
pg_constraint_is_visible()
|
||
* Allow time to be specified as 040506 or 0405 (Tom)
|
||
* Input date order must now be YYYY-MM-DD (with 4-digit year) or
|
||
match datestyle
|
||
* Make pg_get_constraintdef to support unique, primary-key, and
|
||
check constraints (Christopher)
|
||
_________________________________________________________________
|
||
|
||
Server-Side Language Changes
|
||
|
||
* Prevent PL/pgSQL crash when RETURN NEXT is used on a zero-row
|
||
record variable (Tom)
|
||
* Make PL/Python's spi_execute interface handle null values properly
|
||
(Andrew Bosma)
|
||
* Allow PL/pgSQL to declare variables of composite types without
|
||
%ROWTYPE (Tom)
|
||
* Fix PL/Python's _quote() function to handle big integers
|
||
* Make PL/Python an untrusted language, now called plpythonu (Kevin
|
||
Jacobs, Tom)
|
||
The Python language no longer supports a restricted execution
|
||
environment, so the trusted version of PL/Python was removed. If
|
||
this situation changes, a version of PL/python that can be used by
|
||
non-superusers will be readded.
|
||
* Allow polymorphic PL/pgSQL functions (Tom, Joe)
|
||
* Allow polymorphic SQL functions (Joe)
|
||
* Improved compiled function caching mechanism in PL/pgSQL with full
|
||
support for polymorphism (Joe)
|
||
* Add new parameter $0 in PL/pgSQL representing the function's
|
||
actual return type (Joe)
|
||
* Allow PL/Tcl and PL/Python to use the same trigger on multiple
|
||
tables (Tom)
|
||
* Fixed PL/Tcl's spi_prepare to accept fully qualified type names in
|
||
the parameter type list (Jan)
|
||
_________________________________________________________________
|
||
|
||
psql Changes
|
||
|
||
* Add \pset pager always to always use pager (Greg)
|
||
This forces the pager to be used even if the number of rows is
|
||
less than the screen height. This is valuable for rows that wrap
|
||
across several screen rows.
|
||
* Improve tab completion (Rod, Ross Reedstrom, Ian Barwick)
|
||
* Reorder \? help into groupings (Harald Armin Massa, Bruce)
|
||
* Add backslash commands for listing schemas, casts, and conversions
|
||
(Christopher)
|
||
* "\encoding" now changes based on the server parameter
|
||
client_encoding server (Tom)
|
||
In previous versions, "\encoding" was not aware of encoding
|
||
changes made using SET client_encoding.
|
||
* Save editor buffer into readline history (Ross)
|
||
When "\e" is used to edit a query, the result is saved in the
|
||
readline history for retrieval using the up arrow.
|
||
* Improve "\d" display (Christopher)
|
||
* Enhance HTML mode to be more standards-conforming (Greg)
|
||
* New "\set AUTOCOMMIT off" capability (Tom)
|
||
This takes the place of the removed server parameter autocommit.
|
||
* New "\set VERBOSITY" to control error detail (Tom)
|
||
This controls the new error reporting details.
|
||
* New prompt escape sequence %x to show transaction status (Tom)
|
||
* Long options for psql are now available on all platforms
|
||
_________________________________________________________________
|
||
|
||
pg_dump Changes
|
||
|
||
* Multiple pg_dump fixes, including tar format and large objects
|
||
* Allow pg_dump to dump specific schemas (Neil)
|
||
* Make pg_dump preserve column storage characteristics (Christopher)
|
||
This preserves ALTER TABLE ... SET STORAGE information.
|
||
* Make pg_dump preserve "CLUSTER" characteristics (Christopher)
|
||
* Have pg_dumpall use "GRANT"/"REVOKE" to dump database-level
|
||
privleges (Tom)
|
||
* Allow pg_dumpall to support the options "-a", "-s", "-x" of
|
||
pg_dump (Tom)
|
||
* Prevent pg_dump from lowercasing identifiers specified on the
|
||
command line (Tom)
|
||
* pg_dump options "--use-set-session-authorization" and
|
||
"--no-reconnect" now do nothing, all dumps use "SET SESSION
|
||
AUTHORIZATION"
|
||
pg_dump no longer reconnects to switch users, but instead always
|
||
uses "SET SESSION AUTHORIZATION". This will reduce password
|
||
prompting during restores.
|
||
* Long options for pg_dump are now available on all platforms
|
||
PostgreSQL now includes its own long-option processing routines.
|
||
_________________________________________________________________
|
||
|
||
libpq Changes
|
||
|
||
* Add function PQfreemem for freeing memory on Windows, suggested
|
||
for "NOTIFY" (Bruce)
|
||
Windows requires that memory allocated in a library be freed by a
|
||
function in the same library, hence free() doesn't work for
|
||
freeing memory allocated by libpq. PQfreemem is the proper way to
|
||
free libpq memory, especially on Windows, and is recommended for
|
||
other platforms as well.
|
||
* Document service capability, and add sample file (Bruce)
|
||
This allows clients to look up connection information in a central
|
||
file on the client machine.
|
||
* Make PQsetdbLogin have the same defaults as PQconnectdb (Tom)
|
||
* Allow libpq to cleanly fail when result sets are too large (Tom)
|
||
* Improve performance of function PGunescapeBytea (Ben Lamb)
|
||
* Allow thread-safe libpq with "configure" option
|
||
"--enable-thread-safety" (Lee Kindness, Philip Yarra)
|
||
* Allow function pqInternalNotice to accept a format string and
|
||
arguments instead of just a preformatted message (Tom, Sean
|
||
Chittenden)
|
||
* Control SSL negotiation with sslmode values disable, allow,
|
||
prefer, and require (Jon Jensen)
|
||
* Allow new error codes and levels of text (Tom)
|
||
* Allow access to the underlying table and column of a query result
|
||
(Tom)
|
||
This is helpful for query-builder applications that want to know
|
||
the underlying table and column names associated with a specific
|
||
result set.
|
||
* Allow access to the current transaction status (Tom)
|
||
* Add ability to pass binary data directly to the server (Tom)
|
||
* Add function PQexecPrepared and PQsendQueryPrepared functions
|
||
which perform bind/execute of previously prepared statements (Tom)
|
||
_________________________________________________________________
|
||
|
||
JDBC Changes
|
||
|
||
* Allow setNull on updateable result sets
|
||
* Allow executeBatch on a prepared statement (Barry)
|
||
* Support SSL connections (Barry)
|
||
* Handle schema names in result sets (Paul Sorenson)
|
||
* Add refcursor support (Nic Ferrier)
|
||
_________________________________________________________________
|
||
|
||
Miscellaneous Interface Changes
|
||
|
||
* Prevent possible memory leak or core dump during libpgtcl shutdown
|
||
(Tom)
|
||
* Add Informix compatibility to ECPG (Michael)
|
||
This allows ECPG to process embedded C programs that were written
|
||
using certain Informix extensions.
|
||
* Add type decimal to ECPG that is fixed length, for Informix
|
||
(Michael)
|
||
* Allow thread-safe embedded SQL programs with "configure" option
|
||
"--enable-thread-safety" (Lee Kindness, Bruce)
|
||
This allows multiple threads to access the database at the same
|
||
time.
|
||
* Moved Python client PyGreSQL to http://www.pygresql.org (Marc)
|
||
_________________________________________________________________
|
||
|
||
Source Code Changes
|
||
|
||
* Prevent need for separate platform geometry regression result
|
||
files (Tom)
|
||
* Improved PPC locking primitive (Reinhard Max)
|
||
* New function palloc0 to allocate and clear memory (Bruce)
|
||
* Fix locking code for s390x CPU (64-bit) (Tom)
|
||
* Allow OpenBSD to use local ident credentials (William Ahern)
|
||
* Make query plan trees read-only to executor (Tom)
|
||
* Add Darwin startup scripts (David Wheeler)
|
||
* Allow libpq to compile with Borland C++ compiler (Lester Godwin,
|
||
Karl Waclawek)
|
||
* Use our own version of getopt_long() if needed (Peter)
|
||
* Convert administration scripts to C (Peter)
|
||
* Bison >= 1.85 is now required to build the PostgreSQL grammar, if
|
||
building from CVS
|
||
* Merge documentation into one book (Peter)
|
||
* Add Windows compatibility functions (Bruce)
|
||
* Allow client interfaces to compile under MinGW (Bruce)
|
||
* New ereport() function for error reporting (Tom)
|
||
* Support Intel compiler on Linux (Peter)
|
||
* Improve Linux startup scripts (Slawomir Sudnik, Darko Prenosil)
|
||
* Add support for AMD Opteron and Itanium (Jeffrey W. Baker, Bruce)
|
||
* Remove "--enable-recode" option from "configure"
|
||
This was no longer needed now that we have "CREATE CONVERSION".
|
||
* Generate a compile error if spinlock code is not found (Bruce)
|
||
Platforms without spinlock code will now fail to compile, rather
|
||
than silently using semaphores. This failure can be disabled with
|
||
a new "configure" option.
|
||
_________________________________________________________________
|
||
|
||
Contrib Changes
|
||
|
||
* Change dbmirror license to BSD
|
||
* Improve earthdistance (Bruno Wolff III)
|
||
* Portability improvements to pgcrypto (Marko Kreen)
|
||
* Prevent crash in xml (John Gray, Michael Richards)
|
||
* Update oracle
|
||
* Update mysql
|
||
* Update cube (Bruno Wolff III)
|
||
* Update earthdistance to use cube (Bruno Wolff III)
|
||
* Update btree_gist (Oleg)
|
||
* New tsearch2 full-text search module (Oleg, Teodor)
|
||
* Add hash-based crosstab function to tablefuncs (Joe)
|
||
* Add serial column to order connectby() siblings in tablefuncs
|
||
(Nabil Sayegh,Joe)
|
||
* Add named persistent connections to dblink (Shridhar Daithanka)
|
||
* New pg_autovacuum allows automatic "VACUUM" (Matthew T. O'Connor)
|
||
* Make pgbench honor environment variables PGHOST, PGPORT, PGUSER
|
||
(Tatsuo)
|
||
* Improve intarray (Teodor Sigaev)
|
||
* Improve pgstattuple (Rod)
|
||
* Fix bug in metaphone() in fuzzystrmatch
|
||
* Improve adddepend (Rod)
|
||
* Update spi/timetravel (B<>jthe Zolt<6C>n)
|
||
* Fix dbase "-s" option and improve non-ASCII handling (Thomas Behr,
|
||
M<>rcio Smiderle)
|
||
* Remove array module because features now included by default (Joe)
|
||
_________________________________________________________________
|
||
|
||
Release 7.3.4
|
||
|
||
Release date: 2003-07-24
|
||
|
||
This has a variety of fixes from 7.3.3.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.3.4
|
||
|
||
A dump/restore is *not* required for those running 7.3.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Repair breakage in timestamp-to-date conversion for dates before
|
||
2000
|
||
* Prevent rare possibility of server startup failure (Tom)
|
||
* Fix bugs in interval-to-time conversion (Tom)
|
||
* Add constraint names in a few places in pg_dump (Rod)
|
||
* Improve performance of functions with many parameters (Tom)
|
||
* Fix to_ascii() buffer overruns (Tom)
|
||
* Prevent restore of database comments from throwing an error (Tom)
|
||
* Work around buggy strxfrm() present in some Solaris releases (Tom)
|
||
* Properly escape jdbc setObject() strings to improve security
|
||
(Barry)
|
||
_________________________________________________________________
|
||
|
||
Release 7.3.3
|
||
|
||
Release date: 2003-05-22
|
||
|
||
This release contains of variety of fixes for version 7.3.2.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.3.3
|
||
|
||
A dump/restore is *not* required for those running version 7.3.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Repair sometimes-incorrect computation of StartUpID after a crash
|
||
* Avoid slowness with lots of deferred triggers in one transaction
|
||
(Stephan)
|
||
* Don't lock referenced row when "UPDATE" doesn't change foreign
|
||
key's value (Jan)
|
||
* Use "-fPIC" not "-fpic" on Sparc (Tom Callaway)
|
||
* Repair lack of schema-awareness in contrib/reindexdb
|
||
* Fix contrib/intarray error for zero-element result array (Teodor)
|
||
* Ensure createuser script will exit on control-C (Oliver)
|
||
* Fix errors when the type of a dropped column has itself been
|
||
dropped
|
||
* "CHECKPOINT" does not cause database panic on failure in
|
||
noncritical steps
|
||
* Accept 60 in seconds fields of timestamp, time, interval input
|
||
values
|
||
* Issue notice, not error, if TIMESTAMP, TIME, or INTERVAL precision
|
||
too large
|
||
* Fix abstime-to-time cast function (fix is not applied unless you
|
||
initdb)
|
||
* Fix pg_proc entry for timestampt_izone (fix is not applied unless
|
||
you initdb)
|
||
* Make EXTRACT(EPOCH FROM timestamp without time zone) treat input
|
||
as local time
|
||
* "'now'::timestamptz" gave wrong answer if timezone changed earlier
|
||
in transaction
|
||
* HAVE_INT64_TIMESTAMP code for time with timezone overwrote its
|
||
input
|
||
* Accept "GLOBAL TEMP/TEMPORARY" as a synonym for "TEMPORARY"
|
||
* Avoid improper schema-privilege-check failure in foreign-key
|
||
triggers
|
||
* Fix bugs in foreign-key triggers for "SET DEFAULT" action
|
||
* Fix incorrect time-qual check in row fetch for "UPDATE" and
|
||
"DELETE" triggers
|
||
* Foreign-key clauses were parsed but ignored in "ALTER TABLE ADD
|
||
COLUMN"
|
||
* Fix createlang script breakage for case where handler function
|
||
already exists
|
||
* Fix misbehavior on zero-column tables in pg_dump, COPY, ANALYZE,
|
||
other places
|
||
* Fix misbehavior of func_error() on type names containing '%'
|
||
* Fix misbehavior of replace() on strings containing '%'
|
||
* Regular-expression patterns containing certain multibyte
|
||
characters failed
|
||
* Account correctly for "NULL"s in more cases in join size
|
||
estimation
|
||
* Avoid conflict with system definition of isblank() function or
|
||
macro
|
||
* Fix failure to convert large code point values in EUC_TW
|
||
conversions (Tatsuo)
|
||
* Fix error recovery for SSL_read/SSL_write calls
|
||
* Don't do early constant-folding of type coercion expressions
|
||
* Validate page header fields immediately after reading in any page
|
||
* Repair incorrect check for ungrouped variables in unnamed joins
|
||
* Fix buffer overrun in to_ascii (Guido Notari)
|
||
* contrib/ltree fixes (Teodor)
|
||
* Fix core dump in deadlock detection on machines where char is
|
||
unsigned
|
||
* Avoid running out of buffers in many-way indexscan (bug introduced
|
||
in 7.3)
|
||
* Fix planner's selectivity estimation functions to handle domains
|
||
properly
|
||
* Fix dbmirror memory-allocation bug (Steven Singer)
|
||
* Prevent infinite loop in ln(numeric) due to roundoff error
|
||
* "GROUP BY" got confused if there were multiple equal GROUP BY
|
||
items
|
||
* Fix bad plan when inherited "UPDATE"/"DELETE" references another
|
||
inherited table
|
||
* Prevent clustering on incomplete (partial or non-NULL-storing)
|
||
indexes
|
||
* Service shutdown request at proper time if it arrives while still
|
||
starting up
|
||
* Fix left-links in temporary indexes (could make backwards scans
|
||
miss entries)
|
||
* Fix incorrect handling of client_encoding setting in
|
||
postgresql.conf (Tatsuo)
|
||
* Fix failure to respond to "pg_ctl stop -m fast" after
|
||
Async_NotifyHandler runs
|
||
* Fix SPI for case where rule contains multiple statements of the
|
||
same type
|
||
* Fix problem with checking for wrong type of access privilege in
|
||
rule query
|
||
* Fix problem with "EXCEPT" in "CREATE RULE"
|
||
* Prevent problem with dropping temp tables having serial columns
|
||
* Fix replace_vars_with_subplan_refs failure in complex views
|
||
* Fix regexp slowness in single-byte encodings (Tatsuo)
|
||
* Allow qualified type names in "CREATE CAST" and " DROP CAST"
|
||
* Accept SETOF type[], which formerly had to be written SETOF _type
|
||
* Fix pg_dump core dump in some cases with procedural languages
|
||
* Force ISO datestyle in pg_dump output, for portability (Oliver)
|
||
* pg_dump failed to handle error return from lo_read (Oleg Drokin)
|
||
* pg_dumpall failed with groups having no members (Nick Eskelinen)
|
||
* pg_dumpall failed to recognize --globals-only switch
|
||
* pg_restore failed to restore blobs if -X disable-triggers is
|
||
specified
|
||
* Repair intrafunction memory leak in plpgsql
|
||
* pltcl's "elog" command dumped core if given wrong parameters (Ian
|
||
Harding)
|
||
* plpython used wrong value of atttypmod (Brad McLean)
|
||
* Fix improper quoting of boolean values in Python interface
|
||
(D'Arcy)
|
||
* Added addDataType() method to PGConnection interface for JDBC
|
||
* Fixed various problems with updateable ResultSets for JDBC (Shawn
|
||
Green)
|
||
* Fixed various problems with DatabaseMetaData for JDBC (Kris Jurka,
|
||
Peter Royal)
|
||
* Fixed problem with parsing table ACLs in JDBC
|
||
* Better error message for character set conversion problems in JDBC
|
||
_________________________________________________________________
|
||
|
||
Release 7.3.2
|
||
|
||
Release date: 2003-02-04
|
||
|
||
This release contains a variety of fixes for version 7.3.1.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.3.2
|
||
|
||
A dump/restore is *not* required for those running version 7.3.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Restore creation of OID column in CREATE TABLE AS / SELECT INTO
|
||
* Fix pg_dump core dump when dumping views having comments
|
||
* Dump DEFERRABLE/INITIALLY DEFERRED constraints properly
|
||
* Fix UPDATE when child table's column numbering differs from parent
|
||
* Increase default value of max_fsm_relations
|
||
* Fix problem when fetching backwards in a cursor for a single-row
|
||
query
|
||
* Make backward fetch work properly with cursor on SELECT DISTINCT
|
||
query
|
||
* Fix problems with loading pg_dump files containing contrib/lo
|
||
usage
|
||
* Fix problem with all-numeric user names
|
||
* Fix possible memory leak and core dump during disconnect in
|
||
libpgtcl
|
||
* Make plpython's spi_execute command handle nulls properly (Andrew
|
||
Bosma)
|
||
* Adjust plpython error reporting so that its regression test passes
|
||
again
|
||
* Work with bison 1.875
|
||
* Handle mixed-case names properly in plpgsql's %type (Neil)
|
||
* Fix core dump in pltcl when executing a query rewritten by a rule
|
||
* Repair array subscript overruns (per report from Yichen Xie)
|
||
* Reduce MAX_TIME_PRECISION from 13 to 10 in floating-point case
|
||
* Correctly case-fold variable names in per-database and per-user
|
||
settings
|
||
* Fix coredump in plpgsql's RETURN NEXT when SELECT into record
|
||
returns no rows
|
||
* Fix outdated use of pg_type.typprtlen in python client interface
|
||
* Correctly handle fractional seconds in timestamps in JDBC driver
|
||
* Improve performance of getImportedKeys() in JDBC
|
||
* Make shared-library symlinks work standardly on HPUX (Giles)
|
||
* Repair inconsistent rounding behavior for timestamp, time,
|
||
interval
|
||
* SSL negotiation fixes (Nathan Mueller)
|
||
* Make libpq's ~/.pgpass feature work when connecting with
|
||
PQconnectDB
|
||
* Update my2pg, ora2pg
|
||
* Translation updates
|
||
* Add casts between types lo and oid in contrib/lo
|
||
* fastpath code now checks for privilege to call function
|
||
_________________________________________________________________
|
||
|
||
Release 7.3.1
|
||
|
||
Release date: 2002-12-18
|
||
|
||
This release contains a variety of fixes for version 7.3.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.3.1
|
||
|
||
A dump/restore is *not* required for those running version 7.3.
|
||
However, it should be noted that the main PostgreSQL interface
|
||
library, libpq, has a new major version number for this release, which
|
||
may require recompilation of client code in certain cases.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Fix a core dump of COPY TO when client/server encodings don't
|
||
match (Tom)
|
||
* Allow pg_dump to work with pre-7.2 servers (Philip)
|
||
* contrib/adddepend fixes (Tom)
|
||
* Fix problem with deletion of per-user/per-database config settings
|
||
(Tom)
|
||
* contrib/vacuumlo fix (Tom)
|
||
* Allow 'password' encryption even when pg_shadow contains MD5
|
||
passwords (Bruce)
|
||
* contrib/dbmirror fix (Steven Singer)
|
||
* Optimizer fixes (Tom)
|
||
* contrib/tsearch fixes (Teodor Sigaev, Magnus)
|
||
* Allow locale names to be mixed case (Nicolai Tufar)
|
||
* Increment libpq library's major version number (Bruce)
|
||
* pg_hba.conf error reporting fixes (Bruce, Neil)
|
||
* Add SCO Openserver 5.0.4 as a supported platform (Bruce)
|
||
* Prevent EXPLAIN from crashing server (Tom)
|
||
* SSL fixes (Nathan Mueller)
|
||
* Prevent composite column creation via ALTER TABLE (Tom)
|
||
_________________________________________________________________
|
||
|
||
Release 7.3
|
||
|
||
Release date: 2002-11-27
|
||
_________________________________________________________________
|
||
|
||
Overview
|
||
|
||
Major changes in this release:
|
||
|
||
Schemas
|
||
Schemas allow users to create objects in separate namespaces,
|
||
so two people or applications can have tables with the same
|
||
name. There is also a public schema for shared tables.
|
||
Table/index creation can be restricted by removing privileges
|
||
on the public schema.
|
||
|
||
Drop Column
|
||
PostgreSQL now supports the ALTER TABLE ... DROP COLUMN
|
||
functionality.
|
||
|
||
Table Functions
|
||
Functions returning multiple rows and/or multiple columns are
|
||
now much easier to use than before. You can call such a "table
|
||
function" in the SELECT FROM clause, treating its output like a
|
||
table. Also, PL/pgSQL functions can now return sets.
|
||
|
||
Prepared Queries
|
||
PostgreSQL now supports prepared queries, for improved
|
||
performance.
|
||
|
||
Dependency Tracking
|
||
PostgreSQL now records object dependencies, which allows
|
||
improvements in many areas. "DROP" statements now take either
|
||
CASCADE or RESTRICT to control whether dependent objects are
|
||
also dropped.
|
||
|
||
Privileges
|
||
Functions and procedural languages now have privileges, and
|
||
functions can be defined to run with the privileges of their
|
||
creator.
|
||
|
||
Internationalization
|
||
Both multibyte and locale support are now always enabled.
|
||
|
||
Logging
|
||
A variety of logging options have been enhanced.
|
||
|
||
Interfaces
|
||
A large number of interfaces have been moved to
|
||
http://gborg.postgresql.org where they can be developed and
|
||
released independently.
|
||
|
||
Functions/Identifiers
|
||
By default, functions can now take up to 32 parameters, and
|
||
identifiers can be up to 63 bytes long. Also, OPAQUE is now
|
||
deprecated: there are specific "pseudo-datatypes" to represent
|
||
each of the former meanings of OPAQUE in function argument and
|
||
result types.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.3
|
||
|
||
A dump/restore using pg_dump is required for those wishing to migrate
|
||
data from any previous release. If your application examines the
|
||
system catalogs, additional changes will be required due to the
|
||
introduction of schemas in 7.3; for more information, see:
|
||
http://developer.postgresql.org/~momjian/upgrade_tips_7.3.
|
||
|
||
Observe the following incompatibilities:
|
||
|
||
* Pre-6.3 clients are no longer supported.
|
||
* "pg_hba.conf" now has a column for the user name and additional
|
||
features. Existing files need to be adjusted.
|
||
* Several "postgresql.conf" logging parameters have been renamed.
|
||
* LIMIT #,# has been disabled; use LIMIT # OFFSET #.
|
||
* "INSERT" statements with column lists must specify a value for
|
||
each specified column. For example, INSERT INTO tab (col1, col2)
|
||
VALUES ('val1') is now invalid. It's still allowed to supply fewer
|
||
columns than expected if the "INSERT" does not have a column list.
|
||
* serial columns are no longer automatically UNIQUE; thus, an index
|
||
will not automatically be created.
|
||
* A "SET" command inside an aborted transaction is now rolled back.
|
||
* "COPY" no longer considers missing trailing columns to be null.
|
||
All columns need to be specified. (However, one may achieve a
|
||
similar effect by specifying a column list in the "COPY" command.)
|
||
* The data type timestamp is now equivalent to timestamp without
|
||
time zone, instead of timestamp with time zone.
|
||
* Pre-7.3 databases loaded into 7.3 will not have the new object
|
||
dependencies for serial columns, unique constraints, and foreign
|
||
keys. See the directory "contrib/adddepend/" for a detailed
|
||
description and a script that will add such dependencies.
|
||
* An empty string ('') is no longer allowed as the input into an
|
||
integer field. Formerly, it was silently interpreted as 0.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Server Operation
|
||
|
||
* Add pg_locks view to show locks (Neil)
|
||
* Security fixes for password negotiation memory allocation (Neil)
|
||
* Remove support for version 0 FE/BE protocol (PostgreSQL 6.2 and
|
||
earlier) (Tom)
|
||
* Reserve the last few backend slots for superusers, add parameter
|
||
superuser_reserved_connections to control this (Nigel J. Andrews)
|
||
_________________________________________________________________
|
||
|
||
Performance
|
||
|
||
* Improve startup by calling localtime() only once (Tom)
|
||
* Cache system catalog information in flat files for faster startup
|
||
(Tom)
|
||
* Improve caching of index information (Tom)
|
||
* Optimizer improvements (Tom, Fernando Nasser)
|
||
* Catalog caches now store failed lookups (Tom)
|
||
* Hash function improvements (Neil)
|
||
* Improve performance of query tokenization and network handling
|
||
(Peter)
|
||
* Speed improvement for large object restore (Mario Weilguni)
|
||
* Mark expired index entries on first lookup, saving later heap
|
||
fetches (Tom)
|
||
* Avoid excessive NULL bitmap padding (Manfred Koizar)
|
||
* Add BSD-licensed qsort() for Solaris, for performance (Bruce)
|
||
* Reduce per-row overhead by four bytes (Manfred Koizar)
|
||
* Fix GEQO optimizer bug (Neil Conway)
|
||
* Make WITHOUT OID actually save four bytes per row (Manfred Koizar)
|
||
* Add default_statistics_target variable to specify ANALYZE buckets
|
||
(Neil)
|
||
* Use local buffer cache for temporary tables so no WAL overhead
|
||
(Tom)
|
||
* Improve free space map performance on large tables (Stephen
|
||
Marshall, Tom)
|
||
* Improved WAL write concurrency (Tom)
|
||
_________________________________________________________________
|
||
|
||
Privileges
|
||
|
||
* Add privileges on functions and procedural languages (Peter)
|
||
* Add OWNER to CREATE DATABASE so superusers can create databases on
|
||
behalf of unprivileged users (Gavin Sherry, Tom)
|
||
* Add new object privilege bits EXECUTE and USAGE (Tom)
|
||
* Add SET SESSION AUTHORIZATION DEFAULT and RESET SESSION
|
||
AUTHORIZATION (Tom)
|
||
* Allow functions to be executed with the privilege of the function
|
||
owner (Peter)
|
||
_________________________________________________________________
|
||
|
||
Server Configuration
|
||
|
||
* Server log messages now tagged with LOG, not DEBUG (Bruce)
|
||
* Add user column to pg_hba.conf (Bruce)
|
||
* Have log_connections output two lines in log file (Tom)
|
||
* Remove debug_level from postgresql.conf, now server_min_messages
|
||
(Bruce)
|
||
* New ALTER DATABASE/USER ... SET command for per-user/database
|
||
initialization (Peter)
|
||
* New parameters server_min_messages and client_min_messages to
|
||
control which messages are sent to the server logs or client
|
||
applications (Bruce)
|
||
* Allow pg_hba.conf to specify lists of users/databases separated by
|
||
commas, group names prepended with +, and file names prepended
|
||
with @ (Bruce)
|
||
* Remove secondary password file capability and pg_password utility
|
||
(Bruce)
|
||
* Add variable db_user_namespace for database-local user names
|
||
(Bruce)
|
||
* SSL improvements (Bear Giles)
|
||
* Make encryption of stored passwords the default (Bruce)
|
||
* Allow pg_statistics to be reset by calling pg_stat_reset()
|
||
(Christopher)
|
||
* Add log_duration parameter (Bruce)
|
||
* Rename debug_print_query to log_statement (Bruce)
|
||
* Rename show_query_stats to show_statement_stats (Bruce)
|
||
* Add param log_min_error_statement to print commands to logs on
|
||
error (Gavin)
|
||
_________________________________________________________________
|
||
|
||
Queries
|
||
|
||
* Make cursors insensitive, meaning their contents do not change
|
||
(Tom)
|
||
* Disable LIMIT #,# syntax; now only LIMIT # OFFSET # supported
|
||
(Bruce)
|
||
* Increase identifier length to 63 (Neil, Bruce)
|
||
* UNION fixes for merging >= 3 columns of different lengths (Tom)
|
||
* Add DEFAULT key word to INSERT, e.g., INSERT ... (..., DEFAULT,
|
||
...) (Rod)
|
||
* Allow views to have default values using ALTER COLUMN ... SET
|
||
DEFAULT (Neil)
|
||
* Fail on INSERTs with column lists that don't supply all column
|
||
values, e.g., INSERT INTO tab (col1, col2) VALUES ('val1'); (Rod)
|
||
* Fix for join aliases (Tom)
|
||
* Fix for FULL OUTER JOINs (Tom)
|
||
* Improve reporting of invalid identifier and location (Tom, Gavin)
|
||
* Fix OPEN cursor(args) (Tom)
|
||
* Allow 'ctid' to be used in a view and currtid(viewname) (Hiroshi)
|
||
* Fix for CREATE TABLE AS with UNION (Tom)
|
||
* SQL99 syntax improvements (Thomas)
|
||
* Add statement_timeout variable to cancel queries (Bruce)
|
||
* Allow prepared queries with PREPARE/EXECUTE (Neil)
|
||
* Allow FOR UPDATE to appear after LIMIT/OFFSET (Bruce)
|
||
* Add variable autocommit (Tom, David Van Wie)
|
||
_________________________________________________________________
|
||
|
||
Object Manipulation
|
||
|
||
* Make equals signs optional in CREATE DATABASE (Gavin Sherry)
|
||
* Make ALTER TABLE OWNER change index ownership too (Neil)
|
||
* New ALTER TABLE tabname ALTER COLUMN colname SET STORAGE controls
|
||
TOAST storage, compression (John Gray)
|
||
* Add schema support, CREATE/DROP SCHEMA (Tom)
|
||
* Create schema for temporary tables (Tom)
|
||
* Add variable search_path for schema search (Tom)
|
||
* Add ALTER TABLE SET/DROP NOT NULL (Christopher)
|
||
* New CREATE FUNCTION volatility levels (Tom)
|
||
* Make rule names unique only per table (Tom)
|
||
* Add 'ON tablename' clause to DROP RULE and COMMENT ON RULE (Tom)
|
||
* Add ALTER TRIGGER RENAME (Joe)
|
||
* New current_schema() and current_schemas() inquiry functions (Tom)
|
||
* Allow functions to return multiple rows (table functions) (Joe)
|
||
* Make WITH optional in CREATE DATABASE, for consistency (Bruce)
|
||
* Add object dependency tracking (Rod, Tom)
|
||
* Add RESTRICT/CASCADE to DROP commands (Rod)
|
||
* Add ALTER TABLE DROP for non-CHECK CONSTRAINT (Rod)
|
||
* Autodestroy sequence on DROP of table with SERIAL (Rod)
|
||
* Prevent column dropping if column is used by foreign key (Rod)
|
||
* Automatically drop constraints/functions when object is dropped
|
||
(Rod)
|
||
* Add CREATE/DROP OPERATOR CLASS (Bill Studenmund, Tom)
|
||
* Add ALTER TABLE DROP COLUMN (Christopher, Tom, Hiroshi)
|
||
* Prevent inherited columns from being removed or renamed (Alvaro
|
||
Herrera)
|
||
* Fix foreign key constraints to not error on intermediate database
|
||
states (Stephan)
|
||
* Propagate column or table renaming to foreign key constraints
|
||
* Add CREATE OR REPLACE VIEW (Gavin, Neil, Tom)
|
||
* Add CREATE OR REPLACE RULE (Gavin, Neil, Tom)
|
||
* Have rules execute alphabetically, returning more predictable
|
||
values (Tom)
|
||
* Triggers are now fired in alphabetical order (Tom)
|
||
* Add /contrib/adddepend to handle pre-7.3 object dependencies (Rod)
|
||
* Allow better casting when inserting/updating values (Tom)
|
||
_________________________________________________________________
|
||
|
||
Utility Commands
|
||
|
||
* Have COPY TO output embedded carriage returns and newlines as \r
|
||
and \n (Tom)
|
||
* Allow DELIMITER in COPY FROM to be 8-bit clean (Tatsuo)
|
||
* Make pg_dump use ALTER TABLE ADD PRIMARY KEY, for performance
|
||
(Neil)
|
||
* Disable brackets in multistatement rules (Bruce)
|
||
* Disable VACUUM from being called inside a function (Bruce)
|
||
* Allow dropdb and other scripts to use identifiers with spaces
|
||
(Bruce)
|
||
* Restrict database comment changes to the current database
|
||
* Allow comments on operators, independent of the underlying
|
||
function (Rod)
|
||
* Rollback SET commands in aborted transactions (Tom)
|
||
* EXPLAIN now outputs as a query (Tom)
|
||
* Display condition expressions and sort keys in EXPLAIN (Tom)
|
||
* Add 'SET LOCAL var = value' to set configuration variables for a
|
||
single transaction (Tom)
|
||
* Allow ANALYZE to run in a transaction (Bruce)
|
||
* Improve COPY syntax using new WITH clauses, keep backward
|
||
compatibility (Bruce)
|
||
* Fix pg_dump to consistently output tags in non-ASCII dumps (Bruce)
|
||
* Make foreign key constraints clearer in dump file (Rod)
|
||
* Add COMMENT ON CONSTRAINT (Rod)
|
||
* Allow COPY TO/FROM to specify column names (Brent Verner)
|
||
* Dump UNIQUE and PRIMARY KEY constraints as ALTER TABLE (Rod)
|
||
* Have SHOW output a query result (Joe)
|
||
* Generate failure on short COPY lines rather than pad NULLs (Neil)
|
||
* Fix CLUSTER to preserve all table attributes (Alvaro Herrera)
|
||
* New pg_settings table to view/modify GUC settings (Joe)
|
||
* Add smart quoting, portability improvements to pg_dump output
|
||
(Peter)
|
||
* Dump serial columns out as SERIAL (Tom)
|
||
* Enable large file support, >2G for pg_dump (Peter, Philip Warner,
|
||
Bruce)
|
||
* Disallow TRUNCATE on tables that are involved in referential
|
||
constraints (Rod)
|
||
* Have TRUNCATE also auto-truncate the toast table of the relation
|
||
(Tom)
|
||
* Add clusterdb utility that will auto-cluster an entire database
|
||
based on previous CLUSTER operations (Alvaro Herrera)
|
||
* Overhaul pg_dumpall (Peter)
|
||
* Allow REINDEX of TOAST tables (Tom)
|
||
* Implemented START TRANSACTION, per SQL99 (Neil)
|
||
* Fix rare index corruption when a page split affects bulk delete
|
||
(Tom)
|
||
* Fix ALTER TABLE ... ADD COLUMN for inheritance (Alvaro Herrera)
|
||
_________________________________________________________________
|
||
|
||
Data Types and Functions
|
||
|
||
* Fix factorial(0) to return 1 (Bruce)
|
||
* Date/time/timezone improvements (Thomas)
|
||
* Fix for array slice extraction (Tom)
|
||
* Fix extract/date_part to report proper microseconds for timestamp
|
||
(Tatsuo)
|
||
* Allow text_substr() and bytea_substr() to read TOAST values more
|
||
efficiently (John Gray)
|
||
* Add domain support (Rod)
|
||
* Make WITHOUT TIME ZONE the default for TIMESTAMP and TIME data
|
||
types (Thomas)
|
||
* Allow alternate storage scheme of 64-bit integers for date/time
|
||
types using --enable-integer-datetimes in configure (Thomas)
|
||
* Make timezone(timestamptz) return timestamp rather than a string
|
||
(Thomas)
|
||
* Allow fractional seconds in date/time types for dates prior to 1BC
|
||
(Thomas)
|
||
* Limit timestamp data types to 6 decimal places of precision
|
||
(Thomas)
|
||
* Change timezone conversion functions from timetz() to timezone()
|
||
(Thomas)
|
||
* Add configuration variables datestyle and timezone (Tom)
|
||
* Add OVERLAY(), which allows substitution of a substring in a
|
||
string (Thomas)
|
||
* Add SIMILAR TO (Thomas, Tom)
|
||
* Add regular expression SUBSTRING(string FROM pat FOR escape)
|
||
(Thomas)
|
||
* Add LOCALTIME and LOCALTIMESTAMP functions (Thomas)
|
||
* Add named composite types using CREATE TYPE typename AS (column)
|
||
(Joe)
|
||
* Allow composite type definition in the table alias clause (Joe)
|
||
* Add new API to simplify creation of C language table functions
|
||
(Joe)
|
||
* Remove ODBC-compatible empty parentheses from calls to SQL99
|
||
functions for which these parentheses do not match the standard
|
||
(Thomas)
|
||
* Allow macaddr data type to accept 12 hex digits with no separators
|
||
(Mike Wyer)
|
||
* Add CREATE/DROP CAST (Peter)
|
||
* Add IS DISTINCT FROM operator (Thomas)
|
||
* Add SQL99 TREAT() function, synonym for CAST() (Thomas)
|
||
* Add pg_backend_pid() to output backend pid (Bruce)
|
||
* Add IS OF / IS NOT OF type predicate (Thomas)
|
||
* Allow bit string constants without fully-specified length (Thomas)
|
||
* Allow conversion between 8-byte integers and bit strings (Thomas)
|
||
* Implement hex literal conversion to bit string literal (Thomas)
|
||
* Allow table functions to appear in the FROM clause (Joe)
|
||
* Increase maximum number of function parameters to 32 (Bruce)
|
||
* No longer automatically create index for SERIAL column (Tom)
|
||
* Add current_database() (Rod)
|
||
* Fix cash_words() to not overflow buffer (Tom)
|
||
* Add functions replace(), split_part(), to_hex() (Joe)
|
||
* Fix LIKE for bytea as a right-hand argument (Joe)
|
||
* Prevent crashes caused by SELECT cash_out(2) (Tom)
|
||
* Fix to_char(1,'FM999.99') to return a period (Karel)
|
||
* Fix trigger/type/language functions returning OPAQUE to return
|
||
proper type (Tom)
|
||
_________________________________________________________________
|
||
|
||
Internationalization
|
||
|
||
* Add additional encodings: Korean (JOHAB), Thai (WIN874),
|
||
Vietnamese (TCVN), Arabic (WIN1256), Simplified Chinese (GBK),
|
||
Korean (UHC) (Eiji Tokuya)
|
||
* Enable locale support by default (Peter)
|
||
* Add locale variables (Peter)
|
||
* Escape byes >= 0x7f for multibyte in PQescapeBytea/PQunescapeBytea
|
||
(Tatsuo)
|
||
* Add locale awareness to regular expression character classes
|
||
* Enable multibyte support by default (Tatsuo)
|
||
* Add GB18030 multibyte support (Bill Huang)
|
||
* Add CREATE/DROP CONVERSION, allowing loadable encodings (Tatsuo,
|
||
Kaori)
|
||
* Add pg_conversion table (Tatsuo)
|
||
* Add SQL99 CONVERT() function (Tatsuo)
|
||
* pg_dumpall, pg_controldata, and pg_resetxlog now national-language
|
||
aware (Peter)
|
||
* New and updated translations
|
||
_________________________________________________________________
|
||
|
||
Server-side Languages
|
||
|
||
* Allow recursive SQL function (Peter)
|
||
* Change PL/Tcl build to use configured compiler and Makefile.shlib
|
||
(Peter)
|
||
* Overhaul the PL/pgSQL FOUND variable to be more Oracle-compatible
|
||
(Neil, Tom)
|
||
* Allow PL/pgSQL to handle quoted identifiers (Tom)
|
||
* Allow set-returning PL/pgSQL functions (Neil)
|
||
* Make PL/pgSQL schema-aware (Joe)
|
||
* Remove some memory leaks (Nigel J. Andrews, Tom)
|
||
_________________________________________________________________
|
||
|
||
psql
|
||
|
||
* Don't lowercase psql \connect database name for 7.2.0
|
||
compatibility (Tom)
|
||
* Add psql \timing to time user queries (Greg Sabino Mullane)
|
||
* Have psql \d show index information (Greg Sabino Mullane)
|
||
* New psql \dD shows domains (Jonathan Eisler)
|
||
* Allow psql to show rules on views (Paul ?)
|
||
* Fix for psql variable substitution (Tom)
|
||
* Allow psql \d to show temporary table structure (Tom)
|
||
* Allow psql \d to show foreign keys (Rod)
|
||
* Fix \? to honor \pset pager (Bruce)
|
||
* Have psql reports its version number on startup (Tom)
|
||
* Allow \copy to specify column names (Tom)
|
||
_________________________________________________________________
|
||
|
||
libpq
|
||
|
||
* Add $HOME/.pgpass to store host/user password combinations (Alvaro
|
||
Herrera)
|
||
* Add PQunescapeBytea() function to libpq (Patrick Welche)
|
||
* Fix for sending large queries over non-blocking connections
|
||
(Bernhard Herzog)
|
||
* Fix for libpq using timers on Win9X (David Ford)
|
||
* Allow libpq notify to handle servers with different-length
|
||
identifiers (Tom)
|
||
* Add libpq PQescapeString() and PQescapeBytea() to Windows (Bruce)
|
||
* Fix for SSL with non-blocking connections (Jack Bates)
|
||
* Add libpq connection timeout parameter (Denis A Ustimenko)
|
||
_________________________________________________________________
|
||
|
||
JDBC
|
||
|
||
* Allow JDBC to compile with JDK 1.4 (Dave)
|
||
* Add JDBC 3 support (Barry)
|
||
* Allows JDBC to set loglevel by adding ?loglevel=X to the
|
||
connection URL (Barry)
|
||
* Add Driver.info() message that prints out the version number
|
||
(Barry)
|
||
* Add updateable result sets (Raghu Nidagal, Dave)
|
||
* Add support for callable statements (Paul Bethe)
|
||
* Add query cancel capability
|
||
* Add refresh row (Dave)
|
||
* Fix MD5 encryption handling for multibyte servers (Jun Kawai)
|
||
* Add support for prepared statements (Barry)
|
||
_________________________________________________________________
|
||
|
||
Miscellaneous Interfaces
|
||
|
||
* Fixed ECPG bug concerning octal numbers in single quotes (Michael)
|
||
* Move src/interfaces/libpgeasy to http://gborg.postgresql.org
|
||
(Marc, Bruce)
|
||
* Improve Python interface (Elliot Lee, Andrew Johnson, Greg
|
||
Copeland)
|
||
* Add libpgtcl connection close event (Gerhard Hintermayer)
|
||
* Move src/interfaces/libpq++ to http://gborg.postgresql.org (Marc,
|
||
Bruce)
|
||
* Move src/interfaces/odbc to http://gborg.postgresql.org (Marc)
|
||
* Move src/interfaces/libpgeasy to http://gborg.postgresql.org
|
||
(Marc, Bruce)
|
||
* Move src/interfaces/perl5 to http://gborg.postgresql.org (Marc,
|
||
Bruce)
|
||
* Remove src/bin/pgaccess from main tree, now at
|
||
http://www.pgaccess.org (Bruce)
|
||
* Add pg_on_connection_loss command to libpgtcl (Gerhard
|
||
Hintermayer, Tom)
|
||
_________________________________________________________________
|
||
|
||
Source Code
|
||
|
||
* Fix for parallel make (Peter)
|
||
* AIX fixes for linking Tcl (Andreas Zeugswetter)
|
||
* Allow PL/Perl to build under Cygwin (Jason Tishler)
|
||
* Improve MIPS compiles (Peter, Oliver Elphick)
|
||
* Require Autoconf version 2.53 (Peter)
|
||
* Require readline and zlib by default in configure (Peter)
|
||
* Allow Solaris to use Intimate Shared Memory (ISM), for performance
|
||
(Scott Brunza, P.J. Josh Rovero)
|
||
* Always enable syslog in compile, remove --enable-syslog option
|
||
(Tatsuo)
|
||
* Always enable multibyte in compile, remove --enable-multibyte
|
||
option (Tatsuo)
|
||
* Always enable locale in compile, remove --enable-locale option
|
||
(Peter)
|
||
* Fix for Win9x DLL creation (Magnus Naeslund)
|
||
* Fix for link() usage by WAL code on Windows, BeOS (Jason Tishler)
|
||
* Add sys/types.h to c.h, remove from main files (Peter, Bruce)
|
||
* Fix AIX hang on SMP machines (Tomoyuki Niijima)
|
||
* AIX SMP hang fix (Tomoyuki Niijima)
|
||
* Fix pre-1970 date handling on newer glibc libraries (Tom)
|
||
* Fix PowerPC SMP locking (Tom)
|
||
* Prevent gcc -ffast-math from being used (Peter, Tom)
|
||
* Bison >= 1.50 now required for developer builds
|
||
* Kerberos 5 support now builds with Heimdal (Peter)
|
||
* Add appendix in the User's Guide which lists SQL features (Thomas)
|
||
* Improve loadable module linking to use RTLD_NOW (Tom)
|
||
* New error levels WARNING, INFO, LOG, DEBUG[1-5] (Bruce)
|
||
* New src/port directory holds replaced libc functions (Peter,
|
||
Bruce)
|
||
* New pg_namespace system catalog for schemas (Tom)
|
||
* Add pg_class.relnamespace for schemas (Tom)
|
||
* Add pg_type.typnamespace for schemas (Tom)
|
||
* Add pg_proc.pronamespace for schemas (Tom)
|
||
* Restructure aggregates to have pg_proc entries (Tom)
|
||
* System relations now have their own namespace, pg_* test not
|
||
required (Fernando Nasser)
|
||
* Rename TOAST index names to be *_index rather than *_idx (Neil)
|
||
* Add namespaces for operators, opclasses (Tom)
|
||
* Add additional checks to server control file (Thomas)
|
||
* New Polish FAQ (Marcin Mazurek)
|
||
* Add Posix semaphore support (Tom)
|
||
* Document need for reindex (Bruce)
|
||
* Rename some internal identifiers to simplify Windows compile (Jan,
|
||
Katherine Ward)
|
||
* Add documentation on computing disk space (Bruce)
|
||
* Remove KSQO from GUC (Bruce)
|
||
* Fix memory leak in rtree (Kenneth Been)
|
||
* Modify a few error messages for consistency (Bruce)
|
||
* Remove unused system table columns (Peter)
|
||
* Make system columns NOT NULL where appropriate (Tom)
|
||
* Clean up use of sprintf in favor of snprintf() (Neil, Jukka
|
||
Holappa)
|
||
* Remove OPAQUE and create specific subtypes (Tom)
|
||
* Cleanups in array internal handling (Joe, Tom)
|
||
* Disallow pg_atoi('') (Bruce)
|
||
* Remove parameter wal_files because WAL files are now recycled
|
||
(Bruce)
|
||
* Add version numbers to heap pages (Tom)
|
||
_________________________________________________________________
|
||
|
||
Contrib
|
||
|
||
* Allow inet arrays in /contrib/array (Neil)
|
||
* GiST fixes (Teodor Sigaev, Neil)
|
||
* Upgrade /contrib/mysql
|
||
* Add /contrib/dbsize which shows table sizes without vacuum (Peter)
|
||
* Add /contrib/intagg, integer aggregator routines (mlw)
|
||
* Improve /contrib/oid2name (Neil, Bruce)
|
||
* Improve /contrib/tsearch (Oleg, Teodor Sigaev)
|
||
* Cleanups of /contrib/rserver (Alexey V. Borzov)
|
||
* Update /contrib/oracle conversion utility (Gilles Darold)
|
||
* Update /contrib/dblink (Joe)
|
||
* Improve options supported by /contrib/vacuumlo (Mario Weilguni)
|
||
* Improvements to /contrib/intarray (Oleg, Teodor Sigaev, Andrey
|
||
Oktyabrski)
|
||
* Add /contrib/reindexdb utility (Shaun Thomas)
|
||
* Add indexing to /contrib/isbn_issn (Dan Weston)
|
||
* Add /contrib/dbmirror (Steven Singer)
|
||
* Improve /contrib/pgbench (Neil)
|
||
* Add /contrib/tablefunc table function examples (Joe)
|
||
* Add /contrib/ltree data type for tree structures (Teodor Sigaev,
|
||
Oleg Bartunov)
|
||
* Move /contrib/pg_controldata, pg_resetxlog into main tree (Bruce)
|
||
* Fixes to /contrib/cube (Bruno Wolff)
|
||
* Improve /contrib/fulltextindex (Christopher)
|
||
_________________________________________________________________
|
||
|
||
Release 7.2.4
|
||
|
||
Release date: 2003-01-30
|
||
|
||
This release contains a variety of fixes for version 7.2.3, including
|
||
fixes to prevent possible data loss.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.2.4
|
||
|
||
A dump/restore is *not* required for those running version 7.2.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Fix some additional cases of VACUUM "No one parent tuple was
|
||
found" error
|
||
* Prevent VACUUM from being called inside a function (Bruce)
|
||
* Ensure pg_clog updates are sync'd to disk before marking
|
||
checkpoint complete
|
||
* Avoid integer overflow during large hash joins
|
||
* Make GROUP commands work when pg_group.grolist is large enough to
|
||
be toasted
|
||
* Fix errors in datetime tables; some timezone names weren't being
|
||
recognized
|
||
* Fix integer overflows in circle_poly(), path_encode(), path_add()
|
||
(Neil)
|
||
* Repair long-standing logic errors in lseg_eq(), lseg_ne(),
|
||
lseg_center()
|
||
_________________________________________________________________
|
||
|
||
Release 7.2.3
|
||
|
||
Release date: 2002-10-01
|
||
|
||
This release contains a variety of fixes for version 7.2.2, including
|
||
fixes to prevent possible data loss.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.2.3
|
||
|
||
A dump/restore is *not* required for those running version 7.2.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Prevent possible compressed transaction log loss (Tom)
|
||
* Prevent non-superuser from increasing most recent vacuum info
|
||
(Tom)
|
||
* Handle pre-1970 date values in newer versions of glibc (Tom)
|
||
* Fix possible hang during server shutdown
|
||
* Prevent spinlock hangs on SMP PPC machines (Tomoyuki Niijima)
|
||
* Fix pg_dump to properly dump FULL JOIN USING (Tom)
|
||
_________________________________________________________________
|
||
|
||
Release 7.2.2
|
||
|
||
Release date: 2002-08-23
|
||
|
||
This release contains a variety of fixes for version 7.2.1.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.2.2
|
||
|
||
A dump/restore is *not* required for those running version 7.2.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Allow EXECUTE of "CREATE TABLE AS ... SELECT" in PL/pgSQL (Tom)
|
||
* Fix for compressed transaction log id wraparound (Tom)
|
||
* Fix PQescapeBytea/PQunescapeBytea so that they handle bytes > 0x7f
|
||
(Tatsuo)
|
||
* Fix for psql and pg_dump crashing when invoked with non-existent
|
||
long options (Tatsuo)
|
||
* Fix crash when invoking geometric operators (Tom)
|
||
* Allow OPEN cursor(args) (Tom)
|
||
* Fix for rtree_gist index build (Teodor)
|
||
* Fix for dumping user-defined aggregates (Tom)
|
||
* contrib/intarray fixes (Oleg)
|
||
* Fix for complex UNION/EXCEPT/INTERSECT queries using parens (Tom)
|
||
* Fix to pg_convert (Tatsuo)
|
||
* Fix for crash with long DATA strings (Thomas, Neil)
|
||
* Fix for repeat(), lpad(), rpad() and long strings (Neil)
|
||
_________________________________________________________________
|
||
|
||
Release 7.2.1
|
||
|
||
Release date: 2002-03-21
|
||
|
||
This release contains a variety of fixes for version 7.2.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.2.1
|
||
|
||
A dump/restore is *not* required for those running version 7.2.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
* Ensure that sequence counters do not go backwards after a crash
|
||
(Tom)
|
||
* Fix pgaccess kanji-conversion key binding (Tatsuo)
|
||
* Optimizer improvements (Tom)
|
||
* Cash I/O improvements (Tom)
|
||
* New Russian FAQ
|
||
* Compile fix for missing AuthBlockSig (Heiko)
|
||
* Additional time zones and time zone fixes (Thomas)
|
||
* Allow psql \connect to handle mixed case database and user names
|
||
(Tom)
|
||
* Return proper OID on command completion even with ON INSERT rules
|
||
(Tom)
|
||
* Allow COPY FROM to use 8-bit DELIMITERS (Tatsuo)
|
||
* Fix bug in extract/date_part for milliseconds/microseconds
|
||
(Tatsuo)
|
||
* Improve handling of multiple UNIONs with different lengths (Tom)
|
||
* contrib/btree_gist improvements (Teodor Sigaev)
|
||
* contrib/tsearch dictionary improvements, see README.tsearch for an
|
||
additional installation step (Thomas T. Thai, Teodor Sigaev)
|
||
* Fix for array subscripts handling (Tom)
|
||
* Allow EXECUTE of "CREATE TABLE AS ... SELECT" in PL/pgSQL (Tom)
|
||
_________________________________________________________________
|
||
|
||
Release 7.2
|
||
|
||
Release date: 2002-02-04
|
||
_________________________________________________________________
|
||
|
||
Overview
|
||
|
||
This release improves PostgreSQL for use in high-volume applications.
|
||
|
||
Major changes in this release:
|
||
|
||
VACUUM
|
||
Vacuuming no longer locks tables, thus allowing normal user
|
||
access during the vacuum. A new "VACUUM FULL" command does
|
||
old-style vacuum by locking the table and shrinking the on-disk
|
||
copy of the table.
|
||
|
||
Transactions
|
||
There is no longer a problem with installations that exceed
|
||
four billion transactions.
|
||
|
||
OIDs
|
||
OIDs are now optional. Users can now create tables without OIDs
|
||
for cases where OID usage is excessive.
|
||
|
||
Optimizer
|
||
The system now computes histogram column statistics during
|
||
"ANALYZE", allowing much better optimizer choices.
|
||
|
||
Security
|
||
A new MD5 encryption option allows more secure storage and
|
||
transfer of passwords. A new Unix-domain socket authentication
|
||
option is available on Linux and BSD systems.
|
||
|
||
Statistics
|
||
Administrators can use the new table access statistics module
|
||
to get fine-grained information about table and index usage.
|
||
|
||
Internationalization
|
||
Program and library messages can now be displayed in several
|
||
languages.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.2
|
||
|
||
A dump/restore using "pg_dump" is required for those wishing to
|
||
migrate data from any previous release.
|
||
|
||
Observe the following incompatibilities:
|
||
|
||
* The semantics of the "VACUUM" command have changed in this
|
||
release. You may wish to update your maintenance procedures
|
||
accordingly.
|
||
* In this release, comparisons using = NULL will always return false
|
||
(or NULL, more precisely). Previous releases automatically
|
||
transformed this syntax to IS NULL. The old behavior can be
|
||
re-enabled using a "postgresql.conf" parameter.
|
||
* The "pg_hba.conf" and "pg_ident.conf" configuration is now only
|
||
reloaded after receiving a SIGHUP signal, not with each
|
||
connection.
|
||
* The function "octet_length()" now returns the uncompressed data
|
||
length.
|
||
* The date/time value 'current' is no longer available. You will
|
||
need to rewrite your applications.
|
||
* The timestamp(), time(), and interval() functions are no longer
|
||
available. Instead of timestamp(), use timestamp 'string' or CAST.
|
||
|
||
The SELECT ... LIMIT #,# syntax will be removed in the next release.
|
||
You should change your queries to use separate LIMIT and OFFSET
|
||
clauses, e.g. LIMIT 10 OFFSET 20.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Server Operation
|
||
|
||
* Create temporary files in a separate directory (Bruce)
|
||
* Delete orphaned temporary files on postmaster startup (Bruce)
|
||
* Added unique indexes to some system tables (Tom)
|
||
* System table operator reorganization (Oleg Bartunov, Teodor
|
||
Sigaev, Tom)
|
||
* Renamed pg_log to pg_clog (Tom)
|
||
* Enable SIGTERM, SIGQUIT to kill backends (Jan)
|
||
* Removed compile-time limit on number of backends (Tom)
|
||
* Better cleanup for semaphore resource failure (Tatsuo, Tom)
|
||
* Allow safe transaction ID wraparound (Tom)
|
||
* Removed OIDs from some system tables (Tom)
|
||
* Removed "triggered data change violation" error check (Tom)
|
||
* SPI portal creation of prepared/saved plans (Jan)
|
||
* Allow SPI column functions to work for system columns (Tom)
|
||
* Long value compression improvement (Tom)
|
||
* Statistics collector for table, index access (Jan)
|
||
* Truncate extra-long sequence names to a reasonable value (Tom)
|
||
* Measure transaction times in milliseconds (Thomas)
|
||
* Fix TID sequential scans (Hiroshi)
|
||
* Superuser ID now fixed at 1 (Peter E)
|
||
* New pg_ctl "reload" option (Tom)
|
||
_________________________________________________________________
|
||
|
||
Performance
|
||
|
||
* Optimizer improvements (Tom)
|
||
* New histogram column statistics for optimizer (Tom)
|
||
* Reuse write-ahead log files rather than discarding them (Tom)
|
||
* Cache improvements (Tom)
|
||
* IS NULL, IS NOT NULL optimizer improvement (Tom)
|
||
* Improve lock manager to reduce lock contention (Tom)
|
||
* Keep relcache entries for index access support functions (Tom)
|
||
* Allow better selectivity with NaN and infinities in NUMERIC (Tom)
|
||
* R-tree performance improvements (Kenneth Been)
|
||
* B-tree splits more efficient (Tom)
|
||
_________________________________________________________________
|
||
|
||
Privileges
|
||
|
||
* Change UPDATE, DELETE privileges to be distinct (Peter E)
|
||
* New REFERENCES, TRIGGER privileges (Peter E)
|
||
* Allow GRANT/REVOKE to/from more than one user at a time (Peter E)
|
||
* New has_table_privilege() function (Joe Conway)
|
||
* Allow non-superuser to vacuum database (Tom)
|
||
* New SET SESSION AUTHORIZATION command (Peter E)
|
||
* Fix bug in privilege modifications on newly created tables (Tom)
|
||
* Disallow access to pg_statistic for non-superuser, add
|
||
user-accessible views (Tom)
|
||
_________________________________________________________________
|
||
|
||
Client Authentication
|
||
|
||
* Fork postmaster before doing authentication to prevent hangs
|
||
(Peter E)
|
||
* Add ident authentication over Unix domain sockets on Linux, *BSD
|
||
(Helge Bahmann, Oliver Elphick, Teodor Sigaev, Bruce)
|
||
* Add a password authentication method that uses MD5 encryption
|
||
(Bruce)
|
||
* Allow encryption of stored passwords using MD5 (Bruce)
|
||
* PAM authentication (Dominic J. Eidson)
|
||
* Load pg_hba.conf and pg_ident.conf only on startup and SIGHUP
|
||
(Bruce)
|
||
_________________________________________________________________
|
||
|
||
Server Configuration
|
||
|
||
* Interpretation of some time zone abbreviations as Australian
|
||
rather than North American now settable at run time (Bruce)
|
||
* New parameter to set default transaction isolation level (Peter E)
|
||
* New parameter to enable conversion of "expr = NULL" into "expr IS
|
||
NULL", off by default (Peter E)
|
||
* New parameter to control memory usage by VACUUM (Tom)
|
||
* New parameter to set client authentication timeout (Tom)
|
||
* New parameter to set maximum number of open files (Tom)
|
||
_________________________________________________________________
|
||
|
||
Queries
|
||
|
||
* Statements added by INSERT rules now execute after the INSERT
|
||
(Jan)
|
||
* Prevent unadorned relation names in target list (Bruce)
|
||
* NULLs now sort after all normal values in ORDER BY (Tom)
|
||
* New IS UNKNOWN, IS NOT UNKNOWN Boolean tests (Tom)
|
||
* New SHARE UPDATE EXCLUSIVE lock mode (Tom)
|
||
* New EXPLAIN ANALYZE command that shows run times and row counts
|
||
(Martijn van Oosterhout)
|
||
* Fix problem with LIMIT and subqueries (Tom)
|
||
* Fix for LIMIT, DISTINCT ON pushed into subqueries (Tom)
|
||
* Fix nested EXCEPT/INTERSECT (Tom)
|
||
_________________________________________________________________
|
||
|
||
Schema Manipulation
|
||
|
||
* Fix SERIAL in temporary tables (Bruce)
|
||
* Allow temporary sequences (Bruce)
|
||
* Sequences now use int8 internally (Tom)
|
||
* New SERIAL8 creates int8 columns with sequences, default still
|
||
SERIAL4 (Tom)
|
||
* Make OIDs optional using WITHOUT OIDS (Tom)
|
||
* Add %TYPE syntax to CREATE TYPE (Ian Lance Taylor)
|
||
* Add ALTER TABLE / DROP CONSTRAINT for CHECK constraints
|
||
(Christopher Kings-Lynne)
|
||
* New CREATE OR REPLACE FUNCTION to alter existing function
|
||
(preserving the function OID) (Gavin Sherry)
|
||
* Add ALTER TABLE / ADD [ UNIQUE | PRIMARY ] (Christopher
|
||
Kings-Lynne)
|
||
* Allow column renaming in views
|
||
* Make ALTER TABLE / RENAME COLUMN update column names of indexes
|
||
(Brent Verner)
|
||
* Fix for ALTER TABLE / ADD CONSTRAINT ... CHECK with inherited
|
||
tables (Stephan Szabo)
|
||
* ALTER TABLE RENAME update foreign-key trigger arguments correctly
|
||
(Brent Verner)
|
||
* DROP AGGREGATE and COMMENT ON AGGREGATE now accept an aggtype
|
||
(Tom)
|
||
* Add automatic return type data casting for SQL functions (Tom)
|
||
* Allow GiST indexes to handle NULLs and multikey indexes (Oleg
|
||
Bartunov, Teodor Sigaev, Tom)
|
||
* Enable partial indexes (Martijn van Oosterhout)
|
||
_________________________________________________________________
|
||
|
||
Utility Commands
|
||
|
||
* Add RESET ALL, SHOW ALL (Marko Kreen)
|
||
* CREATE/ALTER USER/GROUP now allow options in any order (Vince)
|
||
* Add LOCK A, B, C functionality (Neil Padgett)
|
||
* New ENCRYPTED/UNENCRYPTED option to CREATE/ALTER USER (Bruce)
|
||
* New light-weight VACUUM does not lock table; old semantics are
|
||
available as VACUUM FULL (Tom)
|
||
* Disable COPY TO/FROM on views (Bruce)
|
||
* COPY DELIMITERS string must be exactly one character (Tom)
|
||
* VACUUM warning about index tuples fewer than heap now only appears
|
||
when appropriate (Martijn van Oosterhout)
|
||
* Fix privilege checks for CREATE INDEX (Tom)
|
||
* Disallow inappropriate use of CREATE/DROP INDEX/TRIGGER/VIEW (Tom)
|
||
_________________________________________________________________
|
||
|
||
Data Types and Functions
|
||
|
||
* SUM(), AVG(), COUNT() now uses int8 internally for speed (Tom)
|
||
* Add convert(), convert2() (Tatsuo)
|
||
* New function bit_length() (Peter E)
|
||
* Make the "n" in CHAR(n)/VARCHAR(n) represents letters, not bytes
|
||
(Tatsuo)
|
||
* CHAR(), VARCHAR() now reject strings that are too long (Peter E)
|
||
* BIT VARYING now rejects bit strings that are too long (Peter E)
|
||
* BIT now rejects bit strings that do not match declared size (Peter
|
||
E)
|
||
* INET, CIDR text conversion functions (Alex Pilosov)
|
||
* INET, CIDR operators << and <<= indexable (Alex Pilosov)
|
||
* Bytea \### now requires valid three digit octal number
|
||
* Bytea comparison improvements, now supports =, <>, >, >=, <, and
|
||
<=
|
||
* Bytea now supports B-tree indexes
|
||
* Bytea now supports LIKE, LIKE...ESCAPE, NOT LIKE, NOT
|
||
LIKE...ESCAPE
|
||
* Bytea now supports concatenation
|
||
* New bytea functions: position, substring, trim, btrim, and length
|
||
* New encode() function mode, "escaped", converts minimally escaped
|
||
bytea to/from text
|
||
* Add pg_database_encoding_max_length() (Tatsuo)
|
||
* Add pg_client_encoding() function (Tatsuo)
|
||
* now() returns time with millisecond precision (Thomas)
|
||
* New TIMESTAMP WITHOUT TIMEZONE data type (Thomas)
|
||
* Add ISO date/time specification with "T", yyyy-mm-ddThh:mm:ss
|
||
(Thomas)
|
||
* New xid/int comparison functions (Hiroshi)
|
||
* Add precision to TIME, TIMESTAMP, and INTERVAL data types (Thomas)
|
||
* Modify type coercion logic to attempt binary-compatible functions
|
||
first (Tom)
|
||
* New encode() function installed by default (Marko Kreen)
|
||
* Improved to_*() conversion functions (Karel Zak)
|
||
* Optimize LIKE/ILIKE when using single-byte encodings (Tatsuo)
|
||
* New functions in contrib/pgcrypto: crypt(), hmac(), encrypt(),
|
||
gen_salt() (Marko Kreen)
|
||
* Correct description of translate() function (Bruce)
|
||
* Add INTERVAL argument for SET TIME ZONE (Thomas)
|
||
* Add INTERVAL YEAR TO MONTH (etc.) syntax (Thomas)
|
||
* Optimize length functions when using single-byte encodings
|
||
(Tatsuo)
|
||
* Fix path_inter, path_distance, path_length, dist_ppath to handle
|
||
closed paths (Curtis Barrett, Tom)
|
||
* octet_length(text) now returns non-compressed length (Tatsuo,
|
||
Bruce)
|
||
* Handle "July" full name in date/time literals (Greg Sabino
|
||
Mullane)
|
||
* Some datatype() function calls now evaluated differently
|
||
* Add support for Julian and ISO time specifications (Thomas)
|
||
_________________________________________________________________
|
||
|
||
Internationalization
|
||
|
||
* National language support in psql, pg_dump, libpq, and server
|
||
(Peter E)
|
||
* Message translations in Chinese (simplified, traditional), Czech,
|
||
French, German, Hungarian, Russian, Swedish (Peter E, Serguei A.
|
||
Mokhov, Karel Zak, Weiping He, Zhenbang Wei, Kovacs Zoltan)
|
||
* Make trim, ltrim, rtrim, btrim, lpad, rpad, translate multibyte
|
||
aware (Tatsuo)
|
||
* Add LATIN5,6,7,8,9,10 support (Tatsuo)
|
||
* Add ISO 8859-5,6,7,8 support (Tatsuo)
|
||
* Correct LATIN5 to mean ISO-8859-9, not ISO-8859-5 (Tatsuo)
|
||
* Make mic2ascii() non-ASCII aware (Tatsuo)
|
||
* Reject invalid multibyte character sequences (Tatsuo)
|
||
_________________________________________________________________
|
||
|
||
PL/pgSQL
|
||
|
||
* Now uses portals for SELECT loops, allowing huge result sets (Jan)
|
||
* CURSOR and REFCURSOR support (Jan)
|
||
* Can now return open cursors (Jan)
|
||
* Add ELSEIF (Klaus Reger)
|
||
* Improve PL/pgSQL error reporting, including location of error
|
||
(Tom)
|
||
* Allow IS or FOR key words in cursor declaration, for compatibility
|
||
(Bruce)
|
||
* Fix for SELECT ... FOR UPDATE (Tom)
|
||
* Fix for PERFORM returning multiple rows (Tom)
|
||
* Make PL/pgSQL use the server's type coercion code (Tom)
|
||
* Memory leak fix (Jan, Tom)
|
||
* Make trailing semicolon optional (Tom)
|
||
_________________________________________________________________
|
||
|
||
PL/Perl
|
||
|
||
* New untrusted PL/Perl (Alex Pilosov)
|
||
* PL/Perl is now built on some platforms even if libperl is not
|
||
shared (Peter E)
|
||
_________________________________________________________________
|
||
|
||
PL/Tcl
|
||
|
||
* Now reports errorInfo (Vsevolod Lobko)
|
||
* Add spi_lastoid function (bob@redivi.com)
|
||
_________________________________________________________________
|
||
|
||
PL/Python
|
||
|
||
* ...is new (Andrew Bosma)
|
||
_________________________________________________________________
|
||
|
||
psql
|
||
|
||
* \d displays indexes in unique, primary groupings (Christopher
|
||
Kings-Lynne)
|
||
* Allow trailing semicolons in backslash commands (Greg Sabino
|
||
Mullane)
|
||
* Read password from /dev/tty if possible
|
||
* Force new password prompt when changing user and database (Tatsuo,
|
||
Tom)
|
||
* Format the correct number of columns for Unicode (Patrice)
|
||
_________________________________________________________________
|
||
|
||
libpq
|
||
|
||
* New function PQescapeString() to escape quotes in command strings
|
||
(Florian Weimer)
|
||
* New function PQescapeBytea() escapes binary strings for use as SQL
|
||
string literals
|
||
_________________________________________________________________
|
||
|
||
JDBC
|
||
|
||
* Return OID of INSERT (Ken K)
|
||
* Handle more data types (Ken K)
|
||
* Handle single quotes and newlines in strings (Ken K)
|
||
* Handle NULL variables (Ken K)
|
||
* Fix for time zone handling (Barry Lind)
|
||
* Improved Druid support
|
||
* Allow eight-bit characters with non-multibyte server (Barry Lind)
|
||
* Support BIT, BINARY types (Ned Wolpert)
|
||
* Reduce memory usage (Michael Stephens, Dave Cramer)
|
||
* Update DatabaseMetaData (Peter E)
|
||
* Add DatabaseMetaData.getCatalogs() (Peter E)
|
||
* Encoding fixes (Anders Bengtsson)
|
||
* Get/setCatalog methods (Jason Davies)
|
||
* DatabaseMetaData.getColumns() now returns column defaults (Jason
|
||
Davies)
|
||
* DatabaseMetaData.getColumns() performance improvement (Jeroen van
|
||
Vianen)
|
||
* Some JDBC1 and JDBC2 merging (Anders Bengtsson)
|
||
* Transaction performance improvements (Barry Lind)
|
||
* Array fixes (Greg Zoller)
|
||
* Serialize addition
|
||
* Fix batch processing (Rene Pijlman)
|
||
* ExecSQL method reorganization (Anders Bengtsson)
|
||
* GetColumn() fixes (Jeroen van Vianen)
|
||
* Fix isWriteable() function (Rene Pijlman)
|
||
* Improved passage of JDBC2 conformance tests (Rene Pijlman)
|
||
* Add bytea type capability (Barry Lind)
|
||
* Add isNullable() (Rene Pijlman)
|
||
* JDBC date/time test suite fixes (Liam Stewart)
|
||
* Fix for SELECT 'id' AS xxx FROM table (Dave Cramer)
|
||
* Fix DatabaseMetaData to show precision properly (Mark Lillywhite)
|
||
* New getImported/getExported keys (Jason Davies)
|
||
* MD5 password encryption support (Jeremy Wohl)
|
||
* Fix to actually use type cache (Ned Wolpert)
|
||
_________________________________________________________________
|
||
|
||
ODBC
|
||
|
||
* Remove query size limit (Hiroshi)
|
||
* Remove text field size limit (Hiroshi)
|
||
* Fix for SQLPrimaryKeys in multibyte mode (Hiroshi)
|
||
* Allow ODBC procedure calls (Hiroshi)
|
||
* Improve boolean handing (Aidan Mountford)
|
||
* Most configuration options now settable via DSN (Hiroshi)
|
||
* Multibyte, performance fixes (Hiroshi)
|
||
* Allow driver to be used with iODBC or unixODBC (Peter E)
|
||
* MD5 password encryption support (Bruce)
|
||
* Add more compatibility functions to odbc.sql (Peter E)
|
||
_________________________________________________________________
|
||
|
||
ECPG
|
||
|
||
* EXECUTE ... INTO implemented (Christof Petig)
|
||
* Multiple row descriptor support (e.g. CARDINALITY) (Christof
|
||
Petig)
|
||
* Fix for GRANT parameters (Lee Kindness)
|
||
* Fix INITIALLY DEFERRED bug
|
||
* Various bug fixes (Michael, Christof Petig)
|
||
* Auto allocation for indicator variable arrays (int *ind_p=NULL)
|
||
* Auto allocation for string arrays (char **foo_pp=NULL)
|
||
* ECPGfree_auto_mem fixed
|
||
* All function names with external linkage are now prefixed by ECPG
|
||
* Fixes for arrays of structures (Michael)
|
||
_________________________________________________________________
|
||
|
||
Misc. Interfaces
|
||
|
||
* Python fix fetchone() (Gerhard Haring)
|
||
* Use UTF, Unicode in Tcl where appropriate (Vsevolod Lobko,
|
||
Reinhard Max)
|
||
* Add Tcl COPY TO/FROM (ljb)
|
||
* Prevent output of default index op class in pg_dump (Tom)
|
||
* Fix libpgeasy memory leak (Bruce)
|
||
_________________________________________________________________
|
||
|
||
Build and Install
|
||
|
||
* Configure, dynamic loader, and shared library fixes (Peter E)
|
||
* Fixes in QNX 4 port (Bernd Tegge)
|
||
* Fixes in Cygwin and Windows ports (Jason Tishler, Gerhard Haring,
|
||
Dmitry Yurtaev, Darko Prenosil, Mikhail Terekhov)
|
||
* Fix for Windows socket communication failures (Magnus, Mikhail
|
||
Terekhov)
|
||
* Hurd compile fix (Oliver Elphick)
|
||
* BeOS fixes (Cyril Velter)
|
||
* Remove configure --enable-unicode-conversion, now enabled by
|
||
multibyte (Tatsuo)
|
||
* AIX fixes (Tatsuo, Andreas)
|
||
* Fix parallel make (Peter E)
|
||
* Install SQL language manual pages into OS-specific directories
|
||
(Peter E)
|
||
* Rename config.h to pg_config.h (Peter E)
|
||
* Reorganize installation layout of header files (Peter E)
|
||
_________________________________________________________________
|
||
|
||
Source Code
|
||
|
||
* Remove SEP_CHAR (Bruce)
|
||
* New GUC hooks (Tom)
|
||
* Merge GUC and command line handling (Marko Kreen)
|
||
* Remove EXTEND INDEX (Martijn van Oosterhout, Tom)
|
||
* New pgjindent utility to indent java code (Bruce)
|
||
* Remove define of true/false when compiling under C++ (Leandro
|
||
Fanzone, Tom)
|
||
* pgindent fixes (Bruce, Tom)
|
||
* Replace strcasecmp() with strcmp() where appropriate (Peter E)
|
||
* Dynahash portability improvements (Tom)
|
||
* Add 'volatile' usage in spinlock structures
|
||
* Improve signal handling logic (Tom)
|
||
_________________________________________________________________
|
||
|
||
Contrib
|
||
|
||
* New contrib/rtree_gist (Oleg Bartunov, Teodor Sigaev)
|
||
* New contrib/tsearch full-text indexing (Oleg, Teodor Sigaev)
|
||
* Add contrib/dblink for remote database access (Joe Conway)
|
||
* contrib/ora2pg Oracle conversion utility (Gilles Darold)
|
||
* contrib/xml XML conversion utility (John Gray)
|
||
* contrib/fulltextindex fixes (Christopher Kings-Lynne)
|
||
* New contrib/fuzzystrmatch with levenshtein and metaphone, soundex
|
||
merged (Joe Conway)
|
||
* Add contrib/intarray boolean queries, binary search, fixes (Oleg
|
||
Bartunov)
|
||
* New pg_upgrade utility (Bruce)
|
||
* Add new pg_resetxlog options (Bruce, Tom)
|
||
_________________________________________________________________
|
||
|
||
Release 7.1.3
|
||
|
||
Release date: 2001-08-15
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.1.3
|
||
|
||
A dump/restore is *not* required for those running 7.1.X.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Remove unused WAL segements of large transactions (Tom)
|
||
Multiaction rule fix (Tom)
|
||
PL/pgSQL memory allocation fix (Jan)
|
||
VACUUM buffer fix (Tom)
|
||
Regression test fixes (Tom)
|
||
pg_dump fixes for GRANT/REVOKE/comments on views, user-defined types (Tom)
|
||
Fix subselects with DISTINCT ON or LIMIT (Tom)
|
||
BeOS fix
|
||
Disable COPY TO/FROM a view (Tom)
|
||
Cygwin build (Jason Tishler)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.1.2
|
||
|
||
Release date: 2001-05-11
|
||
|
||
This has one fix from 7.1.1.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.1.2
|
||
|
||
A dump/restore is *not* required for those running 7.1.X.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Fix PL/pgSQL SELECTs when returning no rows
|
||
Fix for psql backslash core dump
|
||
Referential integrity privilege fix
|
||
Optimizer fixes
|
||
pg_dump cleanups
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.1.1
|
||
|
||
Release date: 2001-05-05
|
||
|
||
This has a variety of fixes from 7.1.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.1.1
|
||
|
||
A dump/restore is *not* required for those running 7.1.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Fix for numeric MODULO operator (Tom)
|
||
pg_dump fixes (Philip)
|
||
pg_dump can dump 7.0 databases (Philip)
|
||
readline 4.2 fixes (Peter E)
|
||
JOIN fixes (Tom)
|
||
AIX, MSWIN, VAX, N32K fixes (Tom)
|
||
Multibytes fixes (Tom)
|
||
Unicode fixes (Tatsuo)
|
||
Optimizer improvements (Tom)
|
||
Fix for whole rows in functions (Tom)
|
||
Fix for pg_ctl and option strings with spaces (Peter E)
|
||
ODBC fixes (Hiroshi)
|
||
EXTRACT can now take string argument (Thomas)
|
||
Python fixes (Darcy)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.1
|
||
|
||
Release date: 2001-04-13
|
||
|
||
This release focuses on removing limitations that have existed in the
|
||
PostgreSQL code for many years.
|
||
|
||
Major changes in this release:
|
||
|
||
Write-ahead Log (WAL)
|
||
To maintain database consistency in case of an operating system
|
||
crash, previous releases of PostgreSQL have forced all data
|
||
modifications to disk before each transaction commit. With WAL,
|
||
only one log file must be flushed to disk, greatly improving
|
||
performance. If you have been using -F in previous releases to
|
||
disable disk flushes, you may want to consider discontinuing
|
||
its use.
|
||
|
||
TOAST
|
||
TOAST - Previous releases had a compiled-in row length limit,
|
||
typically 8k - 32k. This limit made storage of long text fields
|
||
difficult. With TOAST, long rows of any length can be stored
|
||
with good performance.
|
||
|
||
Outer Joins
|
||
We now support outer joins. The UNION/NOT IN workaround for
|
||
outer joins is no longer required. We use the SQL92 outer join
|
||
syntax.
|
||
|
||
Function Manager
|
||
The previous C function manager did not handle null values
|
||
properly, nor did it support 64-bit CPU's (Alpha). The new
|
||
function manager does. You can continue using your old custom
|
||
functions, but you may want to rewrite them in the future to
|
||
use the new function manager call interface.
|
||
|
||
Complex Queries
|
||
A large number of complex queries that were unsupported in
|
||
previous releases now work. Many combinations of views,
|
||
aggregates, UNION, LIMIT, cursors, subqueries, and inherited
|
||
tables now work properly. Inherited tables are now accessed by
|
||
default. Subqueries in FROM are now supported.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.1
|
||
|
||
A dump/restore using pg_dump is required for those wishing to migrate
|
||
data from any previous release.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Many multibyte/Unicode/locale fixes (Tatsuo and others)
|
||
More reliable ALTER TABLE RENAME (Tom)
|
||
Kerberos V fixes (David Wragg)
|
||
Fix for INSERT INTO...SELECT where targetlist has subqueries (Tom)
|
||
Prompt username/password on standard error (Bruce)
|
||
Large objects inv_read/inv_write fixes (Tom)
|
||
Fixes for to_char(), to_date(), to_ascii(), and to_timestamp() (Karel,
|
||
Daniel Baldoni)
|
||
Prevent query expressions from leaking memory (Tom)
|
||
Allow UPDATE of arrays elements (Tom)
|
||
Wake up lock waiters during cancel (Hiroshi)
|
||
Fix rare cursor crash when using hash join (Tom)
|
||
Fix for DROP TABLE/INDEX in rolled-back transaction (Hiroshi)
|
||
Fix psql crash from \l+ if MULTIBYTE enabled (Peter E)
|
||
Fix truncation of rule names during CREATE VIEW (Ross Reedstrom)
|
||
Fix PL/perl (Alex Kapranoff)
|
||
Disallow LOCK on views (Mark Hollomon)
|
||
Disallow INSERT/UPDATE/DELETE on views (Mark Hollomon)
|
||
Disallow DROP RULE, CREATE INDEX, TRUNCATE on views (Mark Hollomon)
|
||
Allow PL/pgSQL accept non-ASCII identifiers (Tatsuo)
|
||
Allow views to proper handle GROUP BY, aggregates, DISTINCT (Tom)
|
||
Fix rare failure with TRUNCATE command (Tom)
|
||
Allow UNION/INTERSECT/EXCEPT to be used with ALL, subqueries, views,
|
||
DISTINCT, ORDER BY, SELECT...INTO (Tom)
|
||
Fix parser failures during aborted transactions (Tom)
|
||
Allow temporary relations to properly clean up indexes (Bruce)
|
||
Fix VACUUM problem with moving rows in same page (Tom)
|
||
Modify pg_dump to better handle user-defined items in template1 (Philip)
|
||
Allow LIMIT in VIEW (Tom)
|
||
Require cursor FETCH to honor LIMIT (Tom)
|
||
Allow PRIMARY/FOREIGN Key definitions on inherited columns (Stephan)
|
||
Allow ORDER BY, LIMIT in subqueries (Tom)
|
||
Allow UNION in CREATE RULE (Tom)
|
||
Make ALTER/DROP TABLE rollback-able (Vadim, Tom)
|
||
Store initdb collation in pg_control so collation cannot be changed (Tom)
|
||
Fix INSERT...SELECT with rules (Tom)
|
||
Fix FOR UPDATE inside views and subselects (Tom)
|
||
Fix OVERLAPS operators conform to SQL92 spec regarding NULLs (Tom)
|
||
Fix lpad() and rpad() to handle length less than input string (Tom)
|
||
Fix use of NOTIFY in some rules (Tom)
|
||
Overhaul btree code (Tom)
|
||
Fix NOT NULL use in Pl/pgSQL variables (Tom)
|
||
Overhaul GIST code (Oleg)
|
||
Fix CLUSTER to preserve constraints and column default (Tom)
|
||
Improved deadlock detection handling (Tom)
|
||
Allow multiple SERIAL columns in a table (Tom)
|
||
Prevent occasional index corruption (Vadim)
|
||
|
||
Enhancements
|
||
------------
|
||
Add OUTER JOINs (Tom)
|
||
Function manager overhaul (Tom)
|
||
Allow ALTER TABLE RENAME on indexes (Tom)
|
||
Improve CLUSTER (Tom)
|
||
Improve ps status display for more platforms (Peter E, Marc)
|
||
Improve CREATE FUNCTION failure message (Ross)
|
||
JDBC improvements (Peter, Travis Bauer, Christopher Cain, William Webber,
|
||
Gunnar)
|
||
Grand Unified Configuration scheme/GUC. Many options can now be set in
|
||
data/postgresql.conf, postmaster/postgres flags, or SET commands (Peter E)
|
||
Improved handling of file descriptor cache (Tom)
|
||
New warning code about auto-created table alias entries (Bruce)
|
||
Overhaul initdb process (Tom, Peter E)
|
||
Overhaul of inherited tables; inherited tables now accessed by default;
|
||
new ONLY key word prevents it (Chris Bitmead, Tom)
|
||
ODBC cleanups/improvements (Nick Gorham, Stephan Szabo, Zoltan Kovacs,
|
||
Michael Fork)
|
||
Allow renaming of temp tables (Tom)
|
||
Overhaul memory manager contexts (Tom)
|
||
pg_dumpall uses CREATE USER or CREATE GROUP rather using COPY (Peter E)
|
||
Overhaul pg_dump (Philip Warner)
|
||
Allow pg_hba.conf secondary password file to specify only username (Peter E)
|
||
Allow TEMPORARY or TEMP key word when creating temporary tables (Bruce)
|
||
New memory leak checker (Karel)
|
||
New SET SESSION CHARACTERISTICS (Thomas)
|
||
Allow nested block comments (Thomas)
|
||
Add WITHOUT TIME ZONE type qualifier (Thomas)
|
||
New ALTER TABLE ADD CONSTRAINT (Stephan)
|
||
Use NUMERIC accumulators for INTEGER aggregates (Tom)
|
||
Overhaul aggregate code (Tom)
|
||
New VARIANCE and STDDEV() aggregates
|
||
Improve dependency ordering of pg_dump (Philip)
|
||
New pg_restore command (Philip)
|
||
New pg_dump tar output option (Philip)
|
||
New pg_dump of large objects (Philip)
|
||
New ESCAPE option to LIKE (Thomas)
|
||
New case-insensitive LIKE - ILIKE (Thomas)
|
||
Allow functional indexes to use binary-compatible type (Tom)
|
||
Allow SQL functions to be used in more contexts (Tom)
|
||
New pg_config utility (Peter E)
|
||
New PL/pgSQL EXECUTE command which allows dynamic SQL and utility statements
|
||
(Jan)
|
||
New PL/pgSQL GET DIAGNOSTICS statement for SPI value access (Jan)
|
||
New quote_identifiers() and quote_literal() functions (Jan)
|
||
New ALTER TABLE table OWNER TO user command (Mark Hollomon)
|
||
Allow subselects in FROM, i.e. FROM (SELECT ...) [AS] alias (Tom)
|
||
Update PyGreSQL to version 3.1 (D'Arcy)
|
||
Store tables as files named by OID (Vadim)
|
||
New SQL function setval(seq,val,bool) for use in pg_dump (Philip)
|
||
Require DROP VIEW to remove views, no DROP TABLE (Mark)
|
||
Allow DROP VIEW view1, view2 (Mark)
|
||
Allow multiple objects in DROP INDEX, DROP RULE, and DROP TYPE (Tom)
|
||
Allow automatic conversion to/from Unicode (Tatsuo, Eiji)
|
||
New /contrib/pgcrypto hashing functions (Marko Kreen)
|
||
New pg_dumpall --globals-only option (Peter E)
|
||
New CHECKPOINT command for WAL which creates new WAL log file (Vadim)
|
||
New AT TIME ZONE syntax (Thomas)
|
||
Allow location of Unix domain socket to be configurable (David J. MacKenzie)
|
||
Allow postmaster to listen on a specific IP address (David J. MacKenzie)
|
||
Allow socket path name to be specified in hostname by using leading slash
|
||
(David J. MacKenzie)
|
||
Allow CREATE DATABASE to specify template database (Tom)
|
||
New utility to convert MySQL schema dumps to SQL92 and PostgreSQL (Thomas)
|
||
New /contrib/rserv replication toolkit (Vadim)
|
||
New file format for COPY BINARY (Tom)
|
||
New /contrib/oid2name to map numeric files to table names (B Palmer)
|
||
New "idle in transaction" ps status message (Marc)
|
||
Update to pgaccess 0.98.7 (Constantin Teodorescu)
|
||
pg_ctl now defaults to -w (wait) on shutdown, new -l (log) option
|
||
Add rudimentary dependency checking to pg_dump (Philip)
|
||
|
||
Types
|
||
-----
|
||
Fix INET/CIDR type ordering and add new functions (Tom)
|
||
Make OID behave as an unsigned type (Tom)
|
||
Allow BIGINT as synonym for INT8 (Peter E)
|
||
New int2 and int8 comparison operators (Tom)
|
||
New BIT and BIT VARYING types (Adriaan Joubert, Tom, Peter E)
|
||
CHAR() no longer faster than VARCHAR() because of TOAST (Tom)
|
||
New GIST seg/cube examples (Gene Selkov)
|
||
Improved round(numeric) handling (Tom)
|
||
Fix CIDR output formatting (Tom)
|
||
New CIDR abbrev() function (Tom)
|
||
|
||
Performance
|
||
-----------
|
||
Write-Ahead Log (WAL) to provide crash recovery with less performance
|
||
overhead (Vadim)
|
||
ANALYZE stage of VACUUM no longer exclusively locks table (Bruce)
|
||
Reduced file seeks (Denis Perchine)
|
||
Improve BTREE code for duplicate keys (Tom)
|
||
Store all large objects in a single table (Denis Perchine, Tom)
|
||
Improve memory allocation performance (Karel, Tom)
|
||
|
||
Source Code
|
||
-----------
|
||
New function manager call conventions (Tom)
|
||
SGI portability fixes (David Kaelbling)
|
||
New configure --enable-syslog option (Peter E)
|
||
New BSDI README (Bruce)
|
||
configure script moved to top level, not /src (Peter E)
|
||
Makefile/configuration/compilation overhaul (Peter E)
|
||
New configure --with-python option (Peter E)
|
||
Solaris cleanups (Peter E)
|
||
Overhaul /contrib Makefiles (Karel)
|
||
New OpenSSL configuration option (Magnus, Peter E)
|
||
AIX fixes (Andreas)
|
||
QNX fixes (Maurizio)
|
||
New heap_open(), heap_openr() API (Tom)
|
||
Remove colon and semi-colon operators (Thomas)
|
||
New pg_class.relkind value for views (Mark Hollomon)
|
||
Rename ichar() to chr() (Karel)
|
||
New documentation for btrim(), ascii(), chr(), repeat() (Karel)
|
||
Fixes for NT/Cygwin (Pete Forman)
|
||
AIX port fixes (Andreas)
|
||
New BeOS port (David Reid, Cyril Velter)
|
||
Add proofreader's changes to docs (Addison-Wesley, Bruce)
|
||
New Alpha spinlock code (Adriaan Joubert, Compaq)
|
||
UnixWare port overhaul (Peter E)
|
||
New Darwin/MacOS X port (Peter Bierman, Bruce Hartzler)
|
||
New FreeBSD Alpha port (Alfred)
|
||
Overhaul shared memory segments (Tom)
|
||
Add IBM S/390 support (Neale Ferguson)
|
||
Moved macmanuf to /contrib (Larry Rosenman)
|
||
Syslog improvements (Larry Rosenman)
|
||
New template0 database that contains no user additions (Tom)
|
||
New /contrib/cube and /contrib/seg GIST sample code (Gene Selkov)
|
||
Allow NetBSD's libedit instead of readline (Peter)
|
||
Improved assembly language source code format (Bruce)
|
||
New contrib/pg_logger
|
||
New --template option to createdb
|
||
New contrib/pg_control utility (Oliver)
|
||
New FreeBSD tools ipc_check, start-scripts/freebsd
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.0.3
|
||
|
||
Release date: 2000-11-11
|
||
|
||
This has a variety of fixes from 7.0.2.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.0.3
|
||
|
||
A dump/restore is *not* required for those running 7.0.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Jdbc fixes (Peter)
|
||
Large object fix (Tom)
|
||
Fix lean in COPY WITH OIDS leak (Tom)
|
||
Fix backwards-index-scan (Tom)
|
||
Fix SELECT ... FOR UPDATE so it checks for duplicate keys (Hiroshi)
|
||
Add --enable-syslog to configure (Marc)
|
||
Fix abort transaction at backend exit in rare cases (Tom)
|
||
Fix for psql \l+ when multibyte enabled (Tatsuo)
|
||
Allow PL/pgSQL to accept non ascii identifiers (Tatsuo)
|
||
Make vacuum always flush buffers (Tom)
|
||
Fix to allow cancel while waiting for a lock (Hiroshi)
|
||
Fix for memory aloocation problem in user authentication code (Tom)
|
||
Remove bogus use of int4out() (Tom)
|
||
Fixes for multiple subqueries in COALESCE or BETWEEN (Tom)
|
||
Fix for failure of triggers on heap open in certain cases (Jeroen van
|
||
Vianen)
|
||
Fix for erroneous selectivity of not-equals (Tom)
|
||
Fix for erroneous use of strcmp() (Tom)
|
||
Fix for bug where storage manager accesses items beyond end of file
|
||
(Tom)
|
||
Fix to include kernel errno message in all smgr elog messages (Tom)
|
||
Fix for '.' not in PATH at build time (SL Baur)
|
||
Fix for out-of-file-descriptors error (Tom)
|
||
Fix to make pg_dump dump 'iscachable' flag for functions (Tom)
|
||
Fix for subselect in targetlist of Append node (Tom)
|
||
Fix for mergejoin plans (Tom)
|
||
Fix TRUNCATE failure on relations with indexes (Tom)
|
||
Avoid database-wide restart on write error (Hiroshi)
|
||
Fix nodeMaterial to honor chgParam by recomputing its output (Tom)
|
||
Fix VACUUM problem with moving chain of update row versions when source
|
||
and destination of a row version lie on the same page (Tom)
|
||
Fix user.c CommandCounterIncrement (Tom)
|
||
Fix for AM/PM boundary problem in to_char() (Karel Zak)
|
||
Fix TIME aggregate handling (Tom)
|
||
Fix to_char() to avoid coredump on NULL input (Tom)
|
||
Buffer fix (Tom)
|
||
Fix for inserting/copying longer multibyte strings into char() data
|
||
types (Tatsuo)
|
||
Fix for crash of backend, on abort (Tom)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.0.2
|
||
|
||
Release date: 2000-06-05
|
||
|
||
This is a repackaging of 7.0.1 with added documentation.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.0.2
|
||
|
||
A dump/restore is *not* required for those running 7.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Added documentation to tarball.
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.0.1
|
||
|
||
Release date: 2000-06-01
|
||
|
||
This is a cleanup release for 7.0.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.0.1
|
||
|
||
A dump/restore is *not* required for those running 7.0.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Fix many CLUSTER failures (Tom)
|
||
Allow ALTER TABLE RENAME works on indexes (Tom)
|
||
Fix plpgsql to handle datetime->timestamp and timespan->interval (Bruce)
|
||
New configure --with-setproctitle switch to use setproctitle() (Marc, Bruce)
|
||
Fix the off by one errors in ResultSet from 6.5.3, and more.
|
||
jdbc ResultSet fixes (Joseph Shraibman)
|
||
optimizer tunings (Tom)
|
||
Fix create user for pgaccess
|
||
Fix for UNLISTEN failure
|
||
IRIX fixes (David Kaelbling)
|
||
QNX fixes (Andreas Kardos)
|
||
Reduce COPY IN lock level (Tom)
|
||
Change libpqeasy to use PQconnectdb() style parameters (Bruce)
|
||
Fix pg_dump to handle OID indexes (Tom)
|
||
Fix small memory leak (Tom)
|
||
Solaris fix for createdb/dropdb (Tatsuo)
|
||
Fix for non-blocking connections (Alfred Perlstein)
|
||
Fix improper recovery after RENAME TABLE failures (Tom)
|
||
Copy pg_ident.conf.sample into /lib directory in install (Bruce)
|
||
Add SJIS UDC (NEC selection IBM kanji) support (Eiji Tokuya)
|
||
Fix too long syslog message (Tatsuo)
|
||
Fix problem with quoted indexes that are too long (Tom)
|
||
JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu)
|
||
ecpg changes (Michael)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 7.0
|
||
|
||
Release date: 2000-05-08
|
||
|
||
This release contains improvements in many areas, demonstrating the
|
||
continued growth of PostgreSQL. There are more improvements and fixes
|
||
in 7.0 than in any previous release. The developers have confidence
|
||
that this is the best release yet; we do our best to put out only
|
||
solid releases, and this one is no exception.
|
||
|
||
Major changes in this release:
|
||
|
||
Foreign Keys
|
||
Foreign keys are now implemented, with the exception of PARTIAL
|
||
MATCH foreign keys. Many users have been asking for this
|
||
feature, and we are pleased to offer it.
|
||
|
||
Optimizer Overhaul
|
||
Continuing on work started a year ago, the optimizer has been
|
||
improved, allowing better query plan selection and faster
|
||
performance with less memory usage.
|
||
|
||
Updated psql
|
||
psql, our interactive terminal monitor, has been updated with a
|
||
variety of new features. See the psql manual page for details.
|
||
|
||
Join Syntax
|
||
SQL92 join syntax is now supported, though only as INNER JOIN
|
||
for this release. JOIN, NATURAL JOIN, JOIN/USING, and JOIN/ON
|
||
are available, as are column correlation names.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 7.0
|
||
|
||
A dump/restore using pg_dump is required for those wishing to migrate
|
||
data from any previous release of PostgreSQL. For those upgrading from
|
||
6.5.*, you may instead use pg_upgrade to upgrade to this release;
|
||
however, a full dump/reload installation is always the most robust
|
||
method for upgrades.
|
||
|
||
Interface and compatibility issues to consider for the new release
|
||
include:
|
||
|
||
* The date/time types datetime and timespan have been superseded by
|
||
the SQL92-defined types timestamp and interval. Although there has
|
||
been some effort to ease the transition by allowing PostgreSQL to
|
||
recognize the deprecated type names and translate them to the new
|
||
type names, this mechanism may not be completely transparent to
|
||
your existing application.
|
||
* The optimizer has been substantially improved in the area of query
|
||
cost estimation. In some cases, this will result in decreased
|
||
query times as the optimizer makes a better choice for the
|
||
preferred plan. However, in a small number of cases, usually
|
||
involving pathological distributions of data, your query times may
|
||
go up. If you are dealing with large amounts of data, you may want
|
||
to check your queries to verify performance.
|
||
* The JDBC and ODBC interfaces have been upgraded and extended.
|
||
* The string function CHAR_LENGTH is now a native function. Previous
|
||
versions translated this into a call to LENGTH, which could result
|
||
in ambiguity with other types implementing LENGTH such as the
|
||
geometric types.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Prevent function calls exceeding maximum number of arguments (Tom)
|
||
Improve CASE construct (Tom)
|
||
Fix SELECT coalesce(f1,0) FROM int4_tbl GROUP BY f1 (Tom)
|
||
Fix SELECT sentence.words[0] FROM sentence GROUP BY sentence.words[0] (Tom)
|
||
Fix GROUP BY scan bug (Tom)
|
||
Improvements in SQL grammar processing (Tom)
|
||
Fix for views involved in INSERT ... SELECT ... (Tom)
|
||
Fix for SELECT a/2, a/2 FROM test_missing_target GROUP BY a/2 (Tom)
|
||
Fix for subselects in INSERT ... SELECT (Tom)
|
||
Prevent INSERT ... SELECT ... ORDER BY (Tom)
|
||
Fixes for relations greater than 2GB, including vacuum
|
||
Improve propagating system table changes to other backends (Tom)
|
||
Improve propagating user table changes to other backends (Tom)
|
||
Fix handling of temp tables in complex situations (Bruce, Tom)
|
||
Allow table locking at table open, improving concurrent reliability (Tom)
|
||
Properly quote sequence names in pg_dump (Ross J. Reedstrom)
|
||
Prevent DROP DATABASE while others accessing
|
||
Prevent any rows from being returned by GROUP BY if no rows processed (Tom)
|
||
Fix SELECT COUNT(1) FROM table WHERE ...' if no rows matching WHERE (Tom)
|
||
Fix pg_upgrade so it works for MVCC (Tom)
|
||
Fix for SELECT ... WHERE x IN (SELECT ... HAVING SUM(x) > 1) (Tom)
|
||
Fix for "f1 datetime DEFAULT 'now'" (Tom)
|
||
Fix problems with CURRENT_DATE used in DEFAULT (Tom)
|
||
Allow comment-only lines, and ;;; lines too. (Tom)
|
||
Improve recovery after failed disk writes, disk full (Hiroshi)
|
||
Fix cases where table is mentioned in FROM but not joined (Tom)
|
||
Allow HAVING clause without aggregate functions (Tom)
|
||
Fix for "--" comment and no trailing newline, as seen in perl interface
|
||
Improve pg_dump failure error reports (Bruce)
|
||
Allow sorts and hashes to exceed 2GB file sizes (Tom)
|
||
Fix for pg_dump dumping of inherited rules (Tom)
|
||
Fix for NULL handling comparisons (Tom)
|
||
Fix inconsistent state caused by failed CREATE/DROP commands (Hiroshi)
|
||
Fix for dbname with dash
|
||
Prevent DROP INDEX from interfering with other backends (Tom)
|
||
Fix file descriptor leak in verify_password()
|
||
Fix for "Unable to identify an operator =$" problem
|
||
Fix ODBC so no segfault if CommLog and Debug enabled (Dirk Niggemann)
|
||
Fix for recursive exit call (Massimo)
|
||
Fix for extra-long timezones (Jeroen van Vianen)
|
||
Make pg_dump preserve primary key information (Peter E)
|
||
Prevent databases with single quotes (Peter E)
|
||
Prevent DROP DATABASE inside transaction (Peter E)
|
||
ecpg memory leak fixes (Stephen Birch)
|
||
Fix for SELECT null::text, SELECT int4fac(null) and SELECT 2 + (null) (Tom)
|
||
Y2K timestamp fix (Massimo)
|
||
Fix for VACUUM 'HEAP_MOVED_IN was not expected' errors (Tom)
|
||
Fix for views with tables/columns containing spaces (Tom)
|
||
Prevent privileges on indexes (Peter E)
|
||
Fix for spinlock stuck problem when error is generated (Hiroshi)
|
||
Fix ipcclean on Linux
|
||
Fix handling of NULL constraint conditions (Tom)
|
||
Fix memory leak in odbc driver (Nick Gorham)
|
||
Fix for privilege check on UNION tables (Tom)
|
||
Fix to allow SELECT 'a' LIKE 'a' (Tom)
|
||
Fix for SELECT 1 + NULL (Tom)
|
||
Fixes to CHAR
|
||
Fix log() on numeric type (Tom)
|
||
Deprecate ':' and ';' operators
|
||
Allow vacuum of temporary tables
|
||
Disallow inherited columns with the same name as new columns
|
||
Recover or force failure when disk space is exhausted (Hiroshi)
|
||
Fix INSERT INTO ... SELECT with AS columns matching result columns
|
||
Fix INSERT ... SELECT ... GROUP BY groups by target columns not source columns
|
||
(Tom)
|
||
Fix CREATE TABLE test (a char(5) DEFAULT text '', b int4) with INSERT (Tom)
|
||
Fix UNION with LIMIT
|
||
Fix CREATE TABLE x AS SELECT 1 UNION SELECT 2
|
||
Fix CREATE TABLE test(col char(2) DEFAULT user)
|
||
Fix mismatched types in CREATE TABLE ... DEFAULT
|
||
Fix SELECT * FROM pg_class where oid in (0,-1)
|
||
Fix SELECT COUNT('asdf') FROM pg_class WHERE oid=12
|
||
Prevent user who can create databases can modifying pg_database table (Peter E)
|
||
Fix btree to give a useful elog when key > 1/2 (page - overhead) (Tom)
|
||
Fix INSERT of 0.0 into DECIMAL(4,4) field (Tom)
|
||
|
||
Enhancements
|
||
------------
|
||
New CLI interface include file sqlcli.h, based on SQL3/SQL98
|
||
Remove all limits on query length, row length limit still exists (Tom)
|
||
Update jdbc protocol to 2.0 (Jens Glaser <jens@jens.de>)
|
||
Add TRUNCATE command to quickly truncate relation (Mike Mascari)
|
||
Fix to give super user and createdb user proper update catalog rights (Peter E)
|
||
Allow ecpg bool variables to have NULL values (Christof)
|
||
Issue ecpg error if NULL value for variable with no NULL indicator (Christof)
|
||
Allow ^C to cancel COPY command (Massimo)
|
||
Add SET FSYNC and SHOW PG_OPTIONS commands(Massimo)
|
||
Function name overloading for dynamically-loaded C functions (Frankpitt)
|
||
Add CmdTuples() to libpq++(Vince)
|
||
New CREATE CONSTRAINT TRIGGER and SET CONSTRAINTS commands(Jan)
|
||
Allow CREATE FUNCTION/WITH clause to be used for all language types
|
||
configure --enable-debug adds -g (Peter E)
|
||
configure --disable-debug removes -g (Peter E)
|
||
Allow more complex default expressions (Tom)
|
||
First real FOREIGN KEY constraint trigger functionality (Jan)
|
||
Add FOREIGN KEY ... MATCH FULL ... ON DELETE CASCADE (Jan)
|
||
Add FOREIGN KEY ... MATCH <unspecified> referential actions (Don Baccus)
|
||
Allow WHERE restriction on ctid (physical heap location) (Hiroshi)
|
||
Move pginterface from contrib to interface directory, rename to pgeasy (Bruce)
|
||
Change pgeasy connectdb() parameter ordering (Bruce)
|
||
Require SELECT DISTINCT target list to have all ORDER BY columns (Tom)
|
||
Add Oracle's COMMENT ON command (Mike Mascari <mascarim@yahoo.com>)
|
||
libpq's PQsetNoticeProcessor function now returns previous hook(Peter E)
|
||
Prevent PQsetNoticeProcessor from being set to NULL (Peter E)
|
||
Make USING in COPY optional (Bruce)
|
||
Allow subselects in the target list (Tom)
|
||
Allow subselects on the left side of comparison operators (Tom)
|
||
New parallel regression test (Jan)
|
||
Change backend-side COPY to write files with permissions 644 not 666 (Tom)
|
||
Force permissions on PGDATA directory to be secure, even if it exists (Tom)
|
||
Added psql LASTOID variable to return last inserted oid (Peter E)
|
||
Allow concurrent vacuum and remove pg_vlock vacuum lock file (Tom)
|
||
Add privilege check for vacuum (Peter E)
|
||
New libpq functions to allow asynchronous connections: PQconnectStart(),
|
||
PQconnectPoll(), PQresetStart(), PQresetPoll(), PQsetenvStart(),
|
||
PQsetenvPoll(), PQsetenvAbort (Ewan Mellor)
|
||
New libpq PQsetenv() function (Ewan Mellor)
|
||
create/alter user extension (Peter E)
|
||
New postmaster.pid and postmaster.opts under $PGDATA (Tatsuo)
|
||
New scripts for create/drop user/db (Peter E)
|
||
Major psql overhaul (Peter E)
|
||
Add const to libpq interface (Peter E)
|
||
New libpq function PQoidValue (Peter E)
|
||
Show specific non-aggregate causing problem with GROUP BY (Tom)
|
||
Make changes to pg_shadow recreate pg_pwd file (Peter E)
|
||
Add aggregate(DISTINCT ...) (Tom)
|
||
Allow flag to control COPY input/output of NULLs (Peter E)
|
||
Make postgres user have a password by default (Peter E)
|
||
Add CREATE/ALTER/DROP GROUP (Peter E)
|
||
All administration scripts now support --long options (Peter E, Karel)
|
||
Vacuumdb script now supports --all option (Peter E)
|
||
ecpg new portable FETCH syntax
|
||
Add ecpg EXEC SQL IFDEF, EXEC SQL IFNDEF, EXEC SQL ELSE, EXEC SQL ELIF
|
||
and EXEC SQL ENDIF directives
|
||
Add pg_ctl script to control backend start-up (Tatsuo)
|
||
Add postmaster.opts.default file to store start-up flags (Tatsuo)
|
||
Allow --with-mb=SQL_ASCII
|
||
Increase maximum number of index keys to 16 (Bruce)
|
||
Increase maximum number of function arguments to 16 (Bruce)
|
||
Allow configuration of maximum number of index keys and arguments (Bruce)
|
||
Allow unprivileged users to change their passwords (Peter E)
|
||
Password authentication enabled; required for new users (Peter E)
|
||
Disallow dropping a user who owns a database (Peter E)
|
||
Change initdb option --with-mb to --enable-multibyte
|
||
Add option for initdb to prompts for superuser password (Peter E)
|
||
Allow complex type casts like col::numeric(9,2) and col::int2::float8 (Tom)
|
||
Updated user interfaces on initdb, initlocation, pg_dump, ipcclean (Peter E)
|
||
New pg_char_to_encoding() and pg_encoding_to_char() functions (Tatsuo)
|
||
libpq non-blocking mode (Alfred Perlstein)
|
||
Improve conversion of types in casts that don't specify a length
|
||
New plperl internal programming language (Mark Hollomon)
|
||
Allow COPY IN to read file that do not end with a newline (Tom)
|
||
Indicate when long identifiers are truncated (Tom)
|
||
Allow aggregates to use type equivalency (Peter E)
|
||
Add Oracle's to_char(), to_date(), to_datetime(), to_timestamp(), to_number()
|
||
conversion functions (Karel Zak <zakkr@zf.jcu.cz>)
|
||
Add SELECT DISTINCT ON (expr [, expr ...]) targetlist ... (Tom)
|
||
Check to be sure ORDER BY is compatible with the DISTINCT operation (Tom)
|
||
Add NUMERIC and int8 types to ODBC
|
||
Improve EXPLAIN results for Append, Group, Agg, Unique (Tom)
|
||
Add ALTER TABLE ... ADD FOREIGN KEY (Stephan Szabo)
|
||
Allow SELECT .. FOR UPDATE in PL/pgSQL (Hiroshi)
|
||
Enable backward sequential scan even after reaching EOF (Hiroshi)
|
||
Add btree indexing of boolean values, >= and <= (Don Baccus)
|
||
Print current line number when COPY FROM fails (Massimo)
|
||
Recognize POSIX time zone e.g. "PST+8" and "GMT-8" (Thomas)
|
||
Add DEC as synonym for DECIMAL (Thomas)
|
||
Add SESSION_USER as SQL92 key word, same as CURRENT_USER (Thomas)
|
||
Implement SQL92 column aliases (aka correlation names) (Thomas)
|
||
Implement SQL92 join syntax (Thomas)
|
||
Make INTERVAL reserved word allowed as a column identifier (Thomas)
|
||
Implement REINDEX command (Hiroshi)
|
||
Accept ALL in aggregate function SUM(ALL col) (Tom)
|
||
Prevent GROUP BY from using column aliases (Tom)
|
||
New psql \encoding option (Tatsuo)
|
||
Allow PQrequestCancel() to terminate when in waiting-for-lock state (Hiroshi)
|
||
Allow negation of a negative number in all cases
|
||
Add ecpg descriptors (Christof, Michael)
|
||
Allow CREATE VIEW v AS SELECT f1::char(8) FROM tbl
|
||
Allow casts with length, like foo::char(8)
|
||
New libpq functions PQsetClientEncoding(), PQclientEncoding() (Tatsuo)
|
||
Add support for SJIS user defined characters (Tatsuo)
|
||
Larger views/rules supported
|
||
Make libpq's PQconndefaults() thread-safe (Tom)
|
||
Disable // as comment to be ANSI conforming, should use -- (Tom)
|
||
Allow column aliases on views CREATE VIEW name (collist)
|
||
Fixes for views with subqueries (Tom)
|
||
Allow UPDATE table SET fld = (SELECT ...) (Tom)
|
||
SET command options no longer require quotes
|
||
Update pgaccess to 0.98.6
|
||
New SET SEED command
|
||
New pg_options.sample file
|
||
New SET FSYNC command (Massimo)
|
||
Allow pg_descriptions when creating tables
|
||
Allow pg_descriptions when creating types, columns, and functions
|
||
Allow psql \copy to allow delimiters (Peter E)
|
||
Allow psql to print nulls as distinct from "" [null] (Peter E)
|
||
|
||
Types
|
||
-----
|
||
Many array fixes (Tom)
|
||
Allow bare column names to be subscripted as arrays (Tom)
|
||
Improve type casting of int and float constants (Tom)
|
||
Cleanups for int8 inputs, range checking, and type conversion (Tom)
|
||
Fix for SELECT timespan('21:11:26'::time) (Tom)
|
||
netmask('x.x.x.x/0') is 255.255.255.255 instead of 0.0.0.0 (Oleg Sharoiko)
|
||
Add btree index on NUMERIC (Jan)
|
||
Perl fix for large objects containing NUL characters (Douglas Thomson)
|
||
ODBC fix for for large objects (free)
|
||
Fix indexing of cidr data type
|
||
Fix for Ethernet MAC addresses (macaddr type) comparisons
|
||
Fix for date/time types when overflows happened in computations (Tom)
|
||
Allow array on int8 (Peter E)
|
||
Fix for rounding/overflow of NUMERIC type, like NUMERIC(4,4) (Tom)
|
||
Allow NUMERIC arrays
|
||
Fix bugs in NUMERIC ceil() and floor() functions (Tom)
|
||
Make char_length()/octet_length including trailing blanks (Tom)
|
||
Made abstime/reltime use int4 instead of time_t (Peter E)
|
||
New lztext data type for compressed text fields
|
||
Revise code to handle coercion of int and float constants (Tom)
|
||
Start at new code to implement a BIT and BIT VARYING type (Adriaan Joubert)
|
||
NUMERIC now accepts scientific notation (Tom)
|
||
NUMERIC to int4 rounds (Tom)
|
||
Convert float4/8 to NUMERIC properly (Tom)
|
||
Allow type conversion with NUMERIC (Thomas)
|
||
Make ISO date style (2000-02-16 09:33) the default (Thomas)
|
||
Add NATIONAL CHAR [ VARYING ] (Thomas)
|
||
Allow NUMERIC round and trunc to accept negative scales (Tom)
|
||
New TIME WITH TIME ZONE type (Thomas)
|
||
Add MAX()/MIN() on time type (Thomas)
|
||
Add abs(), mod(), fac() for int8 (Thomas)
|
||
Rename functions to round(), sqrt(), cbrt(), pow() for float8 (Thomas)
|
||
Add transcendental math functions (e.g. sin(), acos()) for float8 (Thomas)
|
||
Add exp() and ln() for NUMERIC type
|
||
Rename NUMERIC power() to pow() (Thomas)
|
||
Improved TRANSLATE() function (Edwin Ramirez, Tom)
|
||
Allow X=-Y operators (Tom)
|
||
Allow SELECT float8(COUNT(*))/(SELECT COUNT(*) FROM t) FROM t GROUP BY f1; (Tom
|
||
)
|
||
Allow LOCALE to use indexes in regular expression searches (Tom)
|
||
Allow creation of functional indexes to use default types
|
||
|
||
Performance
|
||
-----------
|
||
Prevent exponential space consumption with many AND's and OR's (Tom)
|
||
Collect attribute selectivity values for system columns (Tom)
|
||
Reduce memory usage of aggregates (Tom)
|
||
Fix for LIKE optimization to use indexes with multibyte encodings (Tom)
|
||
Fix r-tree index optimizer selectivity (Thomas)
|
||
Improve optimizer selectivity computations and functions (Tom)
|
||
Optimize btree searching for cases where many equal keys exist (Tom)
|
||
Enable fast LIKE index processing only if index present (Tom)
|
||
Re-use free space on index pages with duplicates (Tom)
|
||
Improve hash join processing (Tom)
|
||
Prevent descending sort if result is already sorted(Hiroshi)
|
||
Allow commuting of index scan query qualifications (Tom)
|
||
Prefer index scans in cases where ORDER BY/GROUP BY is required (Tom)
|
||
Allocate large memory requests in fix-sized chunks for performance (Tom)
|
||
Fix vacuum's performance by reducing memory allocation requests (Tom)
|
||
Implement constant-expression simplification (Bernard Frankpitt, Tom)
|
||
Use secondary columns to be used to determine start of index scan (Hiroshi)
|
||
Prevent quadruple use of disk space when doing internal sorting (Tom)
|
||
Faster sorting by calling fewer functions (Tom)
|
||
Create system indexes to match all system caches (Bruce, Hiroshi)
|
||
Make system caches use system indexes (Bruce)
|
||
Make all system indexes unique (Bruce)
|
||
Improve pg_statistics management for VACUUM speed improvement (Tom)
|
||
Flush backend cache less frequently (Tom, Hiroshi)
|
||
COPY now reuses previous memory allocation, improving performance (Tom)
|
||
Improve optimization cost estimation (Tom)
|
||
Improve optimizer estimate of range queries x > lowbound AND x < highbound (Tom
|
||
)
|
||
Use DNF instead of CNF where appropriate (Tom, Taral)
|
||
Further cleanup for OR-of-AND WHERE-clauses (Tom)
|
||
Make use of index in OR clauses (x = 1 AND y = 2) OR (x = 2 AND y = 4) (Tom)
|
||
Smarter optimizer computations for random index page access (Tom)
|
||
New SET variable to control optimizer costs (Tom)
|
||
Optimizer queries based on LIMIT, OFFSET, and EXISTS qualifications (Tom)
|
||
Reduce optimizer internal housekeeping of join paths for speedup (Tom)
|
||
Major subquery speedup (Tom)
|
||
Fewer fsync writes when fsync is not disabled (Tom)
|
||
Improved LIKE optimizer estimates (Tom)
|
||
Prevent fsync in SELECT-only queries (Vadim)
|
||
Make index creation use psort code, because it is now faster (Tom)
|
||
Allow creation of sort temp tables > 1 Gig
|
||
|
||
Source Tree Changes
|
||
-------------------
|
||
Fix for linux PPC compile
|
||
New generic expression-tree-walker subroutine (Tom)
|
||
Change form() to varargform() to prevent portability problems
|
||
Improved range checking for large integers on Alphas
|
||
Clean up #include in /include directory (Bruce)
|
||
Add scripts for checking includes (Bruce)
|
||
Remove un-needed #include's from *.c files (Bruce)
|
||
Change #include's to use <> and "" as appropriate (Bruce)
|
||
Enable Windows compilation of libpq
|
||
Alpha spinlock fix from Uncle George <gatgul@voicenet.com>
|
||
Overhaul of optimizer data structures (Tom)
|
||
Fix to cygipc library (Yutaka Tanida)
|
||
Allow pgsql to work on newer Cygwin snapshots (Dan)
|
||
New catalog version number (Tom)
|
||
Add Linux ARM
|
||
Rename heap_replace to heap_update
|
||
Update for QNX (Dr. Andreas Kardos)
|
||
New platform-specific regression handling (Tom)
|
||
Rename oid8 -> oidvector and int28 -> int2vector (Bruce)
|
||
Included all yacc and lex files into the distribution (Peter E.)
|
||
Remove lextest, no longer needed (Peter E)
|
||
Fix for libpq and psql on Windows (Magnus)
|
||
Internally change datetime and timespan into timestamp and interval (Thomas)
|
||
Fix for plpgsql on BSD/OS
|
||
Add SQL_ASCII test case to the regression test (Tatsuo)
|
||
configure --with-mb now deprecated (Tatsuo)
|
||
NT fixes
|
||
NetBSD fixes (Johnny C. Lam <lamj@stat.cmu.edu>)
|
||
Fixes for Alpha compiles
|
||
New multibyte encodings
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.5.3
|
||
|
||
Release date: 1999-10-13
|
||
|
||
This is basically a cleanup release for 6.5.2. We have added a new
|
||
PgAccess that was missing in 6.5.2, and installed an NT-specific fix.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.5.3
|
||
|
||
A dump/restore is *not* required for those running 6.5.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Updated version of pgaccess 0.98
|
||
NT-specific patch
|
||
Fix dumping rules on inherited tables
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.5.2
|
||
|
||
Release date: 1999-09-15
|
||
|
||
This is basically a cleanup release for 6.5.1. We have fixed a variety
|
||
of problems reported by 6.5.1 users.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.5.2
|
||
|
||
A dump/restore is *not* required for those running 6.5.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
subselect+CASE fixes(Tom)
|
||
Add SHLIB_LINK setting for solaris_i386 and solaris_sparc ports(Daren Sefcik)
|
||
Fixes for CASE in WHERE join clauses(Tom)
|
||
Fix BTScan abort(Tom)
|
||
Repair the check for redundant UNIQUE and PRIMARY KEY indexes(Thomas)
|
||
Improve it so that it checks for multicolumn constraints(Thomas)
|
||
Fix for Windows making problem with MB enabled(Hiroki Kataoka)
|
||
Allow BSD yacc and bison to compile pl code(Bruce)
|
||
Fix SET NAMES working
|
||
int8 fixes(Thomas)
|
||
Fix vacuum's memory consumption(Hiroshi,Tatsuo)
|
||
Reduce the total memory consumption of vacuum(Tom)
|
||
Fix for timestamp(datetime)
|
||
Rule deparsing bugfixes(Tom)
|
||
Fix quoting problems in mkMakefile.tcldefs.sh.in and mkMakefile.tkdefs.sh.in(To
|
||
m)
|
||
This is to re-use space on index pages freed by vacuum(Vadim)
|
||
document -x for pg_dump(Bruce)
|
||
Fix for unary operators in rule deparser(Tom)
|
||
Comment out FileUnlink of excess segments during mdtruncate()(Tom)
|
||
IRIX linking fix from Yu Cao >yucao@falcon.kla-tencor.com<
|
||
Repair logic error in LIKE: should not return LIKE_ABORT
|
||
when reach end of pattern before end of text(Tom)
|
||
Repair incorrect cleanup of heap memory allocation during transaction abort(Tom
|
||
)
|
||
Updated version of pgaccess 0.98
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.5.1
|
||
|
||
Release date: 1999-07-15
|
||
|
||
This is basically a cleanup release for 6.5. We have fixed a variety
|
||
of problems reported by 6.5 users.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.5.1
|
||
|
||
A dump/restore is *not* required for those running 6.5.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Add NT README file
|
||
Portability fixes for linux_ppc, IRIX, linux_alpha, OpenBSD, alpha
|
||
Remove QUERY_LIMIT, use SELECT...LIMIT
|
||
Fix for EXPLAIN on inheritance(Tom)
|
||
Patch to allow vacuum on multisegment tables(Hiroshi)
|
||
R-Tree optimizer selectivity fix(Tom)
|
||
ACL file descriptor leak fix(Atsushi Ogawa)
|
||
New expresssion subtree code(Tom)
|
||
Avoid disk writes for read-only transactions(Vadim)
|
||
Fix for removal of temp tables if last transaction was aborted(Bruce)
|
||
Fix to prevent too large row from being created(Bruce)
|
||
plpgsql fixes
|
||
Allow port numbers 32k - 64k(Bruce)
|
||
Add ^ precidence(Bruce)
|
||
Rename sort files called pg_temp to pg_sorttemp(Bruce)
|
||
Fix for microseconds in time values(Tom)
|
||
Tutorial source cleanup
|
||
New linux_m68k port
|
||
Fix for sorting of NULL's in some cases(Tom)
|
||
Shared library dependencies fixed (Tom)
|
||
Fixed glitches affecting GROUP BY in subselects(Tom)
|
||
Fix some compiler warnings (Tomoaki Nishiyama)
|
||
Add Win1250 (Czech) support (Pavel Behal)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.5
|
||
|
||
Release date: 1999-06-09
|
||
|
||
This release marks a major step in the development team's mastery of
|
||
the source code we inherited from Berkeley. You will see we are now
|
||
easily adding major features, thanks to the increasing size and
|
||
experience of our world-wide development team.
|
||
|
||
Here is a brief summary of the more notable changes:
|
||
|
||
Multiversion concurrency control(MVCC)
|
||
This removes our old table-level locking, and replaces it with
|
||
a locking system that is superior to most commercial database
|
||
systems. In a traditional system, each row that is modified is
|
||
locked until committed, preventing reads by other users. MVCC
|
||
uses the natural multiversion nature of PostgreSQL to allow
|
||
readers to continue reading consistent data during writer
|
||
activity. Writers continue to use the compact pg_log
|
||
transaction system. This is all performed without having to
|
||
allocate a lock for every row like traditional database
|
||
systems. So, basically, we no longer are restricted by simple
|
||
table-level locking; we have something better than row-level
|
||
locking.
|
||
|
||
Hot backups from pg_dump
|
||
pg_dump takes advantage of the new MVCC features to give a
|
||
consistent database dump/backup while the database stays online
|
||
and available for queries.
|
||
|
||
Numeric data type
|
||
We now have a true numeric data type, with user-specified
|
||
precision.
|
||
|
||
Temporary tables
|
||
Temporary tables are guaranteed to have unique names within a
|
||
database session, and are destroyed on session exit.
|
||
|
||
New SQL features
|
||
We now have CASE, INTERSECT, and EXCEPT statement support. We
|
||
have new LIMIT/OFFSET, SET TRANSACTION ISOLATION LEVEL, SELECT
|
||
... FOR UPDATE, and an improved LOCK TABLE command.
|
||
|
||
Speedups
|
||
We continue to speed up PostgreSQL, thanks to the variety of
|
||
talents within our team. We have sped up memory allocation,
|
||
optimization, table joins, and row transfer routines.
|
||
|
||
Ports
|
||
We continue to expand our port list, this time including
|
||
Windows NT/ix86 and NetBSD/arm32.
|
||
|
||
Interfaces
|
||
Most interfaces have new versions, and existing functionality
|
||
has been improved.
|
||
|
||
Documentation
|
||
New and updated material is present throughout the
|
||
documentation. New FAQs have been contributed for SGI and AIX
|
||
platforms. The Tutorial has introductory information on SQL
|
||
from Stefan Simkovics. For the User's Guide, there are
|
||
reference pages covering the postmaster and more utility
|
||
programs, and a new appendix contains details on date/time
|
||
behavior. The Administrator's Guide has a new chapter on
|
||
troubleshooting from Tom Lane. And the Programmer's Guide has a
|
||
description of query processing, also from Stefan, and details
|
||
on obtaining the PostgreSQL source tree via anonymous CVS and
|
||
CVSup.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.5
|
||
|
||
A dump/restore using pg_dump is required for those wishing to migrate
|
||
data from any previous release of PostgreSQL. pg_upgrade can *not* be
|
||
used to upgrade to this release because the on-disk structure of the
|
||
tables has changed compared to previous releases.
|
||
|
||
The new Multiversion Concurrency Control (MVCC) features can give
|
||
somewhat different behaviors in multiuser environments. *Read and
|
||
understand the following section to ensure that your existing
|
||
applications will give you the behavior you need.*
|
||
_________________________________________________________________
|
||
|
||
Multiversion Concurrency Control
|
||
|
||
Because readers in 6.5 don't lock data, regardless of transaction
|
||
isolation level, data read by one transaction can be overwritten by
|
||
another. In other words, if a row is returned by "SELECT" it doesn't
|
||
mean that this row really exists at the time it is returned (i.e.
|
||
sometime after the statement or transaction began) nor that the row is
|
||
protected from being deleted or updated by concurrent transactions
|
||
before the current transaction does a commit or rollback.
|
||
|
||
To ensure the actual existence of a row and protect it against
|
||
concurrent updates one must use "SELECT FOR UPDATE" or an appropriate
|
||
"LOCK TABLE" statement. This should be taken into account when porting
|
||
applications from previous releases of PostgreSQL and other
|
||
environments.
|
||
|
||
Keep the above in mind if you are using "contrib/refint.*" triggers
|
||
for referential integrity. Additional techniques are required now. One
|
||
way is to use "LOCK parent_table IN SHARE ROW EXCLUSIVE MODE" command
|
||
if a transaction is going to update/delete a primary key and use "LOCK
|
||
parent_table IN SHARE MODE" command if a transaction is going to
|
||
update/insert a foreign key.
|
||
|
||
Note: Note that if you run a transaction in SERIALIZABLE mode then
|
||
you must execute the "LOCK" commands above before execution of any
|
||
DML statement ("SELECT/INSERT/DELETE/UPDATE/FETCH/COPY_TO") in the
|
||
transaction.
|
||
|
||
These inconveniences will disappear in the future when the ability to
|
||
read dirty (uncommitted) data (regardless of isolation level) and true
|
||
referential integrity will be implemented.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Fix text<->float8 and text<->float4 conversion functions(Thomas)
|
||
Fix for creating tables with mixed-case constraints(Billy)
|
||
Change exp()/pow() behavior to generate error on underflow/overflow(Jan)
|
||
Fix bug in pg_dump -z
|
||
Memory overrun cleanups(Tatsuo)
|
||
Fix for lo_import crash(Tatsuo)
|
||
Adjust handling of data type names to suppress double quotes(Thomas)
|
||
Use type coercion for matching columns and DEFAULT(Thomas)
|
||
Fix deadlock so it only checks once after one second of sleep(Bruce)
|
||
Fixes for aggregates and PL/pgsql(Hiroshi)
|
||
Fix for subquery crash(Vadim)
|
||
Fix for libpq function PQfnumber and case-insensitive names(Bahman Rafatjoo)
|
||
Fix for large object write-in-middle, no extra block, memory consumption(Tatsuo
|
||
)
|
||
Fix for pg_dump -d or -D and quote special characters in INSERT
|
||
Repair serious problems with dynahash(Tom)
|
||
Fix INET/CIDR portability problems
|
||
Fix problem with selectivity error in ALTER TABLE ADD COLUMN(Bruce)
|
||
Fix executor so mergejoin of different column types works(Tom)
|
||
Fix for Alpha OR selectivity bug
|
||
Fix OR index selectivity problem(Bruce)
|
||
Fix so \d shows proper length for char()/varchar()(Ryan)
|
||
Fix tutorial code(Clark)
|
||
Improve destroyuser checking(Oliver)
|
||
Fix for Kerberos(Rodney McDuff)
|
||
Fix for dropping database while dirty buffers(Bruce)
|
||
Fix so sequence nextval() can be case-sensitive(Bruce)
|
||
Fix !!= operator
|
||
Drop buffers before destroying database files(Bruce)
|
||
Fix case where executor evaluates functions twice(Tatsuo)
|
||
Allow sequence nextval actions to be case-sensitive(Bruce)
|
||
Fix optimizer indexing not working for negative numbers(Bruce)
|
||
Fix for memory leak in executor with fjIsNull
|
||
Fix for aggregate memory leaks(Erik Riedel)
|
||
Allow user name containing a dash to grant privileges
|
||
Cleanup of NULL in inet types
|
||
Clean up system table bugs(Tom)
|
||
Fix problems of PAGER and \? command(Masaaki Sakaida)
|
||
Reduce default multisegment file size limit to 1GB(Peter)
|
||
Fix for dumping of CREATE OPERATOR(Tom)
|
||
Fix for backward scanning of cursors(Hiroshi Inoue)
|
||
Fix for COPY FROM STDIN when using \i(Tom)
|
||
Fix for subselect is compared inside an expression(Jan)
|
||
Fix handling of error reporting while returning rows(Tom)
|
||
Fix problems with reference to array types(Tom,Jan)
|
||
Prevent UPDATE SET oid(Jan)
|
||
Fix pg_dump so -t option can handle case-sensitive tablenames
|
||
Fixes for GROUP BY in special cases(Tom, Jan)
|
||
Fix for memory leak in failed queries(Tom)
|
||
DEFAULT now supports mixed-case identifiers(Tom)
|
||
Fix for multisegment uses of DROP/RENAME table, indexes(Ole Gjerde)
|
||
Disable use of pg_dump with both -o and -d options(Bruce)
|
||
Allow pg_dump to properly dump group privileges(Bruce)
|
||
Fix GROUP BY in INSERT INTO table SELECT * FROM table2(Jan)
|
||
Fix for computations in views(Jan)
|
||
Fix for aggregates on array indexes(Tom)
|
||
Fix for DEFAULT handles single quotes in value requiring too many quotes
|
||
Fix security problem with non-super users importing/exporting large objects(Tom
|
||
)
|
||
Rollback of transaction that creates table cleaned up properly(Tom)
|
||
Fix to allow long table and column names to generate proper serial names(Tom)
|
||
|
||
Enhancements
|
||
------------
|
||
Add "vacuumdb" utility
|
||
Speed up libpq by allocating memory better(Tom)
|
||
EXPLAIN all indexes used(Tom)
|
||
Implement CASE, COALESCE, NULLIF expression(Thomas)
|
||
New pg_dump table output format(Constantin)
|
||
Add string min()/max() functions(Thomas)
|
||
Extend new type coercion techniques to aggregates(Thomas)
|
||
New moddatetime contrib(Terry)
|
||
Update to pgaccess 0.96(Constantin)
|
||
Add routines for single-byte "char" type(Thomas)
|
||
Improved substr() function(Thomas)
|
||
Improved multibyte handling(Tatsuo)
|
||
Multiversion concurrency control/MVCC(Vadim)
|
||
New Serialized mode(Vadim)
|
||
Fix for tables over 2gigs(Peter)
|
||
New SET TRANSACTION ISOLATION LEVEL(Vadim)
|
||
New LOCK TABLE IN ... MODE(Vadim)
|
||
Update ODBC driver(Byron)
|
||
New NUMERIC data type(Jan)
|
||
New SELECT FOR UPDATE(Vadim)
|
||
Handle "NaN" and "Infinity" for input values(Jan)
|
||
Improved date/year handling(Thomas)
|
||
Improved handling of backend connections(Magnus)
|
||
New options ELOG_TIMESTAMPS and USE_SYSLOG options for log files(Massimo)
|
||
New TCL_ARRAYS option(Massimo)
|
||
New INTERSECT and EXCEPT(Stefan)
|
||
New pg_index.indisprimary for primary key tracking(D'Arcy)
|
||
New pg_dump option to allow dropping of tables before creation(Brook)
|
||
Speedup of row output routines(Tom)
|
||
New READ COMMITTED isolation level(Vadim)
|
||
New TEMP tables/indexes(Bruce)
|
||
Prevent sorting if result is already sorted(Jan)
|
||
New memory allocation optimization(Jan)
|
||
Allow psql to do \p\g(Bruce)
|
||
Allow multiple rule actions(Jan)
|
||
Added LIMIT/OFFSET functionality(Jan)
|
||
Improve optimizer when joining a large number of tables(Bruce)
|
||
New intro to SQL from S. Simkovics' Master's Thesis (Stefan, Thomas)
|
||
New intro to backend processing from S. Simkovics' Master's Thesis (Stefan)
|
||
Improved int8 support(Ryan Bradetich, Thomas, Tom)
|
||
New routines to convert between int8 and text/varchar types(Thomas)
|
||
New bushy plans, where meta-tables are joined(Bruce)
|
||
Enable right-hand queries by default(Bruce)
|
||
Allow reliable maximum number of backends to be set at configure time
|
||
(--with-maxbackends and postmaster switch (-N backends))(Tom)
|
||
GEQO default now 10 tables because of optimizer speedups(Tom)
|
||
Allow NULL=Var for MS-SQL portability(Michael, Bruce)
|
||
Modify contrib check_primary_key() so either "automatic" or "dependent"(Anand)
|
||
Allow psql \d on a view show query(Ryan)
|
||
Speedup for LIKE(Bruce)
|
||
Ecpg fixes/features, see src/interfaces/ecpg/ChangeLog file(Michael)
|
||
JDBC fixes/features, see src/interfaces/jdbc/CHANGELOG(Peter)
|
||
Make % operator have precedence like /(Bruce)
|
||
Add new postgres -O option to allow system table structure changes(Bruce)
|
||
Update contrib/pginterface/findoidjoins script(Tom)
|
||
Major speedup in vacuum of deleted rows with indexes(Vadim)
|
||
Allow non-SQL functions to run different versions based on arguments(Tom)
|
||
Add -E option that shows actual queries sent by \dt and friends(Masaaki Sakaida
|
||
)
|
||
Add version number in start-up banners for psql(Masaaki Sakaida)
|
||
New contrib/vacuumlo removes large objects not referenced(Peter)
|
||
New initialization for table sizes so non-vacuumed tables perform better(Tom)
|
||
Improve error messages when a connection is rejected(Tom)
|
||
Support for arrays of char() and varchar() fields(Massimo)
|
||
Overhaul of hash code to increase reliability and performance(Tom)
|
||
Update to PyGreSQL 2.4(D'Arcy)
|
||
Changed debug options so -d4 and -d5 produce different node displays(Jan)
|
||
New pg_options: pretty_plan, pretty_parse, pretty_rewritten(Jan)
|
||
Better optimization statistics for system table access(Tom)
|
||
Better handling of non-default block sizes(Massimo)
|
||
Improve GEQO optimizer memory consumption(Tom)
|
||
UNION now suppports ORDER BY of columns not in target list(Jan)
|
||
Major libpq++ improvements(Vince Vielhaber)
|
||
pg_dump now uses -z(ACL's) as default(Bruce)
|
||
backend cache, memory speedups(Tom)
|
||
have pg_dump do everything in one snapshot transaction(Vadim)
|
||
fix for large object memory leakage, fix for pg_dumping(Tom)
|
||
INET type now respects netmask for comparisons
|
||
Make VACUUM ANALYZE only use a readlock(Vadim)
|
||
Allow VIEWs on UNIONS(Jan)
|
||
pg_dump now can generate consistent snapshots on active databases(Vadim)
|
||
|
||
Source Tree Changes
|
||
-------------------
|
||
Improve port matching(Tom)
|
||
Portability fixes for SunOS
|
||
Add Windows NT backend port and enable dynamic loading(Magnus and Daniel Horak)
|
||
New port to Cobalt Qube(Mips) running Linux(Tatsuo)
|
||
Port to NetBSD/m68k(Mr. Mutsuki Nakajima)
|
||
Port to NetBSD/sun3(Mr. Mutsuki Nakajima)
|
||
Port to NetBSD/macppc(Toshimi Aoki)
|
||
Fix for tcl/tk configuration(Vince)
|
||
Removed CURRENT key word for rule queries(Jan)
|
||
NT dynamic loading now works(Daniel Horak)
|
||
Add ARM32 support(Andrew McMurry)
|
||
Better support for HP-UX 11 and UnixWare
|
||
Improve file handling to be more uniform, prevent file descriptor leak(Tom)
|
||
New install commands for plpgsql(Jan)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.4.2
|
||
|
||
Release date: 1998-12-20
|
||
|
||
The 6.4.1 release was improperly packaged. This also has one
|
||
additional bug fix.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.4.2
|
||
|
||
A dump/restore is *not* required for those running 6.4.*.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Fix for datetime constant problem on some platforms(Thomas)
|
||
_________________________________________________________________
|
||
|
||
Release 6.4.1
|
||
|
||
Release date: 1998-12-18
|
||
|
||
This is basically a cleanup release for 6.4. We have fixed a variety
|
||
of problems reported by 6.4 users.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.4.1
|
||
|
||
A dump/restore is *not* required for those running 6.4.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Add pg_dump -N flag to force double quotes around identifiers. This is
|
||
the default(Thomas)
|
||
Fix for NOT in where clause causing crash(Bruce)
|
||
EXPLAIN VERBOSE coredump fix(Vadim)
|
||
Fix shared-library problems on Linux
|
||
Fix test for table existence to allow mixed-case and whitespace in
|
||
the table name(Thomas)
|
||
Fix a couple of pg_dump bugs
|
||
Configure matches template/.similar entries better(Tom)
|
||
Change builtin function names from SPI_* to spi_*
|
||
OR WHERE clause fix(Vadim)
|
||
Fixes for mixed-case table names(Billy)
|
||
contrib/linux/postgres.init.csh/sh fix(Thomas)
|
||
libpq memory overrun fix
|
||
SunOS fixes(Tom)
|
||
Change exp() behavior to generate error on underflow(Thomas)
|
||
pg_dump fixes for memory leak, inheritance constraints, layout change
|
||
update pgaccess to 0.93
|
||
Fix prototype for 64-bit platforms
|
||
Multibyte fixes(Tatsuo)
|
||
New ecpg man page
|
||
Fix memory overruns(Tatsuo)
|
||
Fix for lo_import() crash(Bruce)
|
||
Better search for install program(Tom)
|
||
Timezone fixes(Tom)
|
||
HP-UX fixes(Tom)
|
||
Use implicit type coercion for matching DEFAULT values(Thomas)
|
||
Add routines to help with single-byte (internal) character type(Thomas)
|
||
Compilation of libpq for Windows fixes(Magnus)
|
||
Upgrade to PyGreSQL 2.2(D'Arcy)
|
||
_________________________________________________________________
|
||
|
||
Release 6.4
|
||
|
||
Release date: 1998-10-30
|
||
|
||
There are *many* new features and improvements in this release. Thanks
|
||
to our developers and maintainers, nearly every aspect of the system
|
||
has received some attention since the previous release. Here is a
|
||
brief, incomplete summary:
|
||
|
||
* Views and rules are now functional thanks to extensive new code in
|
||
the rewrite rules system from Jan Wieck. He also wrote a chapter
|
||
on it for the Programmer's Guide.
|
||
* Jan also contributed a second procedural language, PL/pgSQL, to go
|
||
with the original PL/pgTCL procedural language he contributed last
|
||
release.
|
||
* We have optional multiple-byte character set support from Tatsuo
|
||
Ishii to complement our existing locale support.
|
||
* Client/server communications has been cleaned up, with better
|
||
support for asynchronous messages and interrupts thanks to Tom
|
||
Lane.
|
||
* The parser will now perform automatic type coercion to match
|
||
arguments to available operators and functions, and to match
|
||
columns and expressions with target columns. This uses a generic
|
||
mechanism which supports the type extensibility features of
|
||
PostgreSQL. There is a new chapter in the User's Guide which
|
||
covers this topic.
|
||
* Three new data types have been added. Two types, inet and cidr,
|
||
support various forms of IP network, subnet, and machine
|
||
addressing. There is now an 8-byte integer type available on some
|
||
platforms. See the chapter on data types in the User's Guide for
|
||
details. A fourth type, serial, is now supported by the parser as
|
||
an amalgam of the int4 type, a sequence, and a unique index.
|
||
* Several more SQL92-compatible syntax features have been added,
|
||
including "INSERT DEFAULT VALUES"
|
||
* The automatic configuration and installation system has received
|
||
some attention, and should be more robust for more platforms than
|
||
it has ever been.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.4
|
||
|
||
A dump/restore using pg_dump or pg_dumpall is required for those
|
||
wishing to migrate data from any previous release of PostgreSQL.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan)
|
||
Remove char2-16 data types, use char/varchar(Darren)
|
||
Pqfn not handles a NOTICE message(Anders)
|
||
Reduced busywaiting overhead for spinlocks with many backends (dg)
|
||
Stuck spinlock detection (dg)
|
||
Fix up "ISO-style" timespan decoding and encoding(Thomas)
|
||
Fix problem with table drop after rollback of transaction(Vadim)
|
||
Change error message and remove non-functional update message(Vadim)
|
||
Fix for COPY array checking
|
||
Fix for SELECT 1 UNION SELECT NULL
|
||
Fix for buffer leaks in large object calls(Pascal)
|
||
Change owner from oid to int4 type(Bruce)
|
||
Fix a bug in the oracle compatibility functions btrim() ltrim() and rtrim()
|
||
Fix for shared invalidation cache overflow(Massimo)
|
||
Prevent file descriptor leaks in failed COPY's(Bruce)
|
||
Fix memory leak in libpgtcl's pg_select(Constantin)
|
||
Fix problems with username/passwords over 8 characters(Tom)
|
||
Fix problems with handling of asynchronous NOTIFY in backend(Tom)
|
||
Fix of many bad system table entries(Tom)
|
||
|
||
Enhancements
|
||
------------
|
||
Upgrade ecpg and ecpglib,see src/interfaces/ecpc/ChangeLog(Michael)
|
||
Show the index used in an EXPLAIN(Zeugswetter)
|
||
EXPLAIN invokes rule system and shows plan(s) for rewritten queries(Jan)
|
||
Multibyte awareness of many data types and functions, via configure(Tatsuo)
|
||
New configure --with-mb option(Tatsuo)
|
||
New initdb --pgencoding option(Tatsuo)
|
||
New createdb -E multibyte option(Tatsuo)
|
||
Select version(); now returns PostgreSQL version(Jeroen)
|
||
libpq now allows asynchronous clients(Tom)
|
||
Allow cancel from client of backend query(Tom)
|
||
psql now cancels query with Control-C(Tom)
|
||
libpq users need not issue dummy queries to get NOTIFY messages(Tom)
|
||
NOTIFY now sends sender's PID, so you can tell whether it was your own(Tom)
|
||
PGresult struct now includes associated error message, if any(Tom)
|
||
Define "tz_hour" and "tz_minute" arguments to date_part()(Thomas)
|
||
Add routines to convert between varchar and bpchar(Thomas)
|
||
Add routines to allow sizing of varchar and bpchar into target columns(Thomas)
|
||
Add bit flags to support timezonehour and minute in data retrieval(Thomas)
|
||
Allow more variations on valid floating point numbers (e.g. ".1", "1e6")(Thomas
|
||
)
|
||
Fixes for unary minus parsing with leading spaces(Thomas)
|
||
Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs(Thomas)
|
||
Check for and properly ignore FOREIGN KEY column constraints(Thomas)
|
||
Define USER as synonym for CURRENT_USER per SQL92 specs(Thomas)
|
||
Enable HAVING clause but no fixes elsewhere yet.
|
||
Make "char" type a synonym for "char(1)" (actually implemented as bpchar)(Thoma
|
||
s)
|
||
Save string type if specified for DEFAULT clause handling(Thomas)
|
||
Coerce operations involving different data types(Thomas)
|
||
Allow some index use for columns of different types(Thomas)
|
||
Add capabilities for automatic type conversion(Thomas)
|
||
Cleanups for large objects, so file is truncated on open(Peter)
|
||
Readline cleanups(Tom)
|
||
Allow psql \f \ to make spaces as delimiter(Bruce)
|
||
Pass pg_attribute.atttypmod to the frontend for column field lengths(Tom,Bruce)
|
||
Msql compatibility library in /contrib(Aldrin)
|
||
Remove the requirement that ORDER/GROUP BY clause identifiers be
|
||
included in the target list(David)
|
||
Convert columns to match columns in UNION clauses(Thomas)
|
||
Remove fork()/exec() and only do fork()(Bruce)
|
||
Jdbc cleanups(Peter)
|
||
Show backend status on ps command line(only works on some platforms)(Bruce)
|
||
Pg_hba.conf now has a sameuser option in the database field
|
||
Make lo_unlink take oid param, not int4
|
||
New DISABLE_COMPLEX_MACRO for compilers that can't handle our macros(Bruce)
|
||
Libpgtcl now handles NOTIFY as a Tcl event, need not send dummy queries(Tom)
|
||
libpgtcl cleanups(Tom)
|
||
Add -error option to libpgtcl's pg_result command(Tom)
|
||
New locale patch, see docs/README/locale(Oleg)
|
||
Fix for pg_dump so CONSTRAINT and CHECK syntax is correct(ccb)
|
||
New contrib/lo code for large object orphan removal(Peter)
|
||
New psql command "SET CLIENT_ENCODING TO 'encoding'" for multibytes
|
||
feature, see /doc/README.mb(Tatsuo)
|
||
contrib/noupdate code to revoke update permission on a column
|
||
libpq can now be compiled on Windows(Magnus)
|
||
Add PQsetdbLogin() in libpq
|
||
New 8-byte integer type, checked by configure for OS support(Thomas)
|
||
Better support for quoted table/column names(Thomas)
|
||
Surround table and column names with double-quotes in pg_dump(Thomas)
|
||
PQreset() now works with passwords(Tom)
|
||
Handle case of GROUP BY target list column number out of range(David)
|
||
Allow UNION in subselects
|
||
Add auto-size to screen to \d? commands(Bruce)
|
||
Use UNION to show all \d? results in one query(Bruce)
|
||
Add \d? field search feature(Bruce)
|
||
Pg_dump issues fewer \connect requests(Tom)
|
||
Make pg_dump -z flag work better, document it in manual page(Tom)
|
||
Add HAVING clause with full support for subselects and unions(Stephan)
|
||
Full text indexing routines in contrib/fulltextindex(Maarten)
|
||
Transaction ids now stored in shared memory(Vadim)
|
||
New PGCLIENTENCODING when issuing COPY command(Tatsuo)
|
||
Support for SQL92 syntax "SET NAMES"(Tatsuo)
|
||
Support for LATIN2-5(Tatsuo)
|
||
Add UNICODE regression test case(Tatsuo)
|
||
Lock manager cleanup, new locking modes for LLL(Vadim)
|
||
Allow index use with OR clauses(Bruce)
|
||
Allows "SELECT NULL ORDER BY 1;"
|
||
Explain VERBOSE prints the plan, and now pretty-prints the plan to
|
||
the postmaster log file(Bruce)
|
||
Add indexes display to \d command(Bruce)
|
||
Allow GROUP BY on functions(David)
|
||
New pg_class.relkind for large objects(Bruce)
|
||
New way to send libpq NOTICE messages to a different location(Tom)
|
||
New \w write command to psql(Bruce)
|
||
New /contrib/findoidjoins scans oid columns to find join relationships(Bruce)
|
||
Allow binary-compatible indexes to be considered when checking for valid
|
||
Indexes for restriction clauses containing a constant(Thomas)
|
||
New ISBN/ISSN code in /contrib/isbn_issn
|
||
Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN constraint(Thomas)
|
||
New rewrite system fixes many problems with rules and views(Jan)
|
||
* Rules on relations work
|
||
* Event qualifications on insert/update/delete work
|
||
* New OLD variable to reference CURRENT, CURRENT will be remove in futu
|
||
re
|
||
* Update rules can reference NEW and OLD in rule qualifications/actions
|
||
* Insert/update/delete rules on views work
|
||
* Multiple rule actions are now supported, surrounded by parentheses
|
||
* Regular users can create views/rules on tables they have RULE permits
|
||
* Rules and views inherit the privileges of the creator
|
||
* No rules at the column level
|
||
* No UPDATE NEW/OLD rules
|
||
* New pg_tables, pg_indexes, pg_rules and pg_views system views
|
||
* Only a single action on SELECT rules
|
||
* Total rewrite overhaul, perhaps for 6.5
|
||
* handle subselects
|
||
* handle aggregates on views
|
||
* handle insert into select from view works
|
||
System indexes are now multikey(Bruce)
|
||
Oidint2, oidint4, and oidname types are removed(Bruce)
|
||
Use system cache for more system table lookups(Bruce)
|
||
New backend programming language PL/pgSQL in backend/pl(Jan)
|
||
New SERIAL data type, auto-creates sequence/index(Thomas)
|
||
Enable assert checking without a recompile(Massimo)
|
||
User lock enhancements(Massimo)
|
||
New setval() command to set sequence value(Massimo)
|
||
Auto-remove unix socket file on start-up if no postmaster running(Massimo)
|
||
Conditional trace package(Massimo)
|
||
New UNLISTEN command(Massimo)
|
||
psql and libpq now compile under Windows using win32.mak(Magnus)
|
||
Lo_read no longer stores trailing NULL(Bruce)
|
||
Identifiers are now truncated to 31 characters internally(Bruce)
|
||
Createuser options now availble on the command line
|
||
Code for 64-bit integer supported added, configure tested, int8 type(Thomas)
|
||
Prevent file descriptor leaf from failed COPY(Bruce)
|
||
New pg_upgrade command(Bruce)
|
||
Updated /contrib directories(Massimo)
|
||
New CREATE TABLE DEFAULT VALUES statement available(Thomas)
|
||
New INSERT INTO TABLE DEFAULT VALUES statement available(Thomas)
|
||
New DECLARE and FETCH feature(Thomas)
|
||
libpq's internal structures now not exported(Tom)
|
||
Allow up to 8 key indexes(Bruce)
|
||
Remove ARCHIVE key word, that is no longer used(Thomas)
|
||
pg_dump -n flag to supress quotes around indentifiers
|
||
disable system columns for views(Jan)
|
||
new INET and CIDR types for network addresses(TomH, Paul)
|
||
no more double quotes in psql output
|
||
pg_dump now dumps views(Terry)
|
||
new SET QUERY_LIMIT(Tatsuo,Jan)
|
||
|
||
Source Tree Changes
|
||
-------------------
|
||
/contrib cleanup(Jun)
|
||
Inline some small functions called for every row(Bruce)
|
||
Alpha/linux fixes
|
||
HP-UX cleanups(Tom)
|
||
Multibyte regression tests(Soonmyung.)
|
||
Remove --disabled options from configure
|
||
Define PGDOC to use POSTGRESDIR by default
|
||
Make regression optional
|
||
Remove extra braces code to pgindent(Bruce)
|
||
Add bsdi shared library support(Bruce)
|
||
New --without-CXX support configure option(Brook)
|
||
New FAQ_CVS
|
||
Update backend flowchart in tools/backend(Bruce)
|
||
Change atttypmod from int16 to int32(Bruce, Tom)
|
||
Getrusage() fix for platforms that do not have it(Tom)
|
||
Add PQconnectdb, PGUSER, PGPASSWORD to libpq man page
|
||
NS32K platform fixes(Phil Nelson, John Buller)
|
||
SCO 7/UnixWare 2.x fixes(Billy,others)
|
||
Sparc/Solaris 2.5 fixes(Ryan)
|
||
Pgbuiltin.3 is obsolete, move to doc files(Thomas)
|
||
Even more documention(Thomas)
|
||
Nextstep support(Jacek)
|
||
Aix support(David)
|
||
pginterface manual page(Bruce)
|
||
shared libraries all have version numbers
|
||
merged all OS-specific shared library defines into one file
|
||
smarter TCL/TK configuration checking(Billy)
|
||
smarter perl configuration(Brook)
|
||
configure uses supplied install-sh if no install script found(Tom)
|
||
new Makefile.shlib for shared library configuration(Tom)
|
||
_________________________________________________________________
|
||
|
||
Release 6.3.2
|
||
|
||
Release date: 1998-04-07
|
||
|
||
This is a bug-fix release for 6.3.x. Refer to the release notes for
|
||
version 6.3 for a more complete summary of new features.
|
||
|
||
Summary:
|
||
|
||
* Repairs automatic configuration support for some platforms,
|
||
including Linux, from breakage inadvertently introduced in version
|
||
6.3.1.
|
||
* Correctly handles function calls on the left side of BETWEEN and
|
||
LIKE clauses.
|
||
|
||
A dump/restore is NOT required for those running 6.3 or 6.3.1. A make
|
||
distclean, make, and make install is all that is required. This last
|
||
step should be performed while the postmaster is not running. You
|
||
should re-link any custom applications that use PostgreSQL libraries.
|
||
|
||
For upgrades from pre-6.3 installations, refer to the installation and
|
||
migration instructions for version 6.3.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Configure detection improvements for tcl/tk(Brook Milligan, Alvin)
|
||
Manual page improvements(Bruce)
|
||
BETWEEN and LIKE fix(Thomas)
|
||
fix for psql \connect used by pg_dump(Oliver Elphick)
|
||
New odbc driver
|
||
pgaccess, version 0.86
|
||
qsort removed, now uses libc version, cleanups(Jeroen)
|
||
fix for buffer over-runs detected(Maurice Gittens)
|
||
fix for buffer overrun in libpgtcl(Randy Kunkee)
|
||
fix for UNION with DISTINCT or ORDER BY(Bruce)
|
||
gettimeofday configure check(Doug Winterburn)
|
||
Fix "indexes not used" bug(Vadim)
|
||
docs additions(Thomas)
|
||
Fix for backend memory leak(Bruce)
|
||
libreadline cleanup(Erwan MAS)
|
||
Remove DISTDIR(Bruce)
|
||
Makefile dependency cleanup(Jeroen van Vianen)
|
||
ASSERT fixes(Bruce)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.3.1
|
||
|
||
Release date: 1998-03-23
|
||
|
||
Summary:
|
||
|
||
* Additional support for multibyte character sets.
|
||
* Repair byte ordering for mixed-endian clients and servers.
|
||
* Minor updates to allowed SQL syntax.
|
||
* Improvements to the configuration autodetection for installation.
|
||
|
||
A dump/restore is NOT required for those running 6.3. A make
|
||
distclean, make, and make install is all that is required. This last
|
||
step should be performed while the postmaster is not running. You
|
||
should re-link any custom applications that use PostgreSQL libraries.
|
||
|
||
For upgrades from pre-6.3 installations, refer to the installation and
|
||
migration instructions for version 6.3.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
ecpg cleanup/fixes, now version 1.1(Michael Meskes)
|
||
pg_user cleanup(Bruce)
|
||
large object fix for pg_dump and tclsh (alvin)
|
||
LIKE fix for multiple adjacent underscores
|
||
fix for redefining builtin functions(Thomas)
|
||
ultrix4 cleanup
|
||
upgrade to pg_access 0.83
|
||
updated CLUSTER manual page
|
||
multibyte character set support, see doc/README.mb(Tatsuo)
|
||
configure --with-pgport fix
|
||
pg_ident fix
|
||
big-endian fix for backend communications(Kataoka)
|
||
SUBSTR() and substring() fix(Jan)
|
||
several jdbc fixes(Peter)
|
||
libpgtcl improvements, see libptcl/README(Randy Kunkee)
|
||
Fix for "Datasize = 0" error(Vadim)
|
||
Prevent \do from wrapping(Bruce)
|
||
Remove duplicate Russian character set entries
|
||
Sunos4 cleanup
|
||
Allow optional TABLE key word in LOCK and SELECT INTO(Thomas)
|
||
CREATE SEQUENCE options to allow a negative integer(Thomas)
|
||
Add "PASSWORD" as an allowed column identifier(Thomas)
|
||
Add checks for UNION target fields(Bruce)
|
||
Fix Alpha port(Dwayne Bailey)
|
||
Fix for text arrays containing quotes(Doug Gibson)
|
||
Solaris compile fix(Albert Chin-A-Young)
|
||
Better identify tcl and tk libs and includes(Bruce)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.3
|
||
|
||
Release date: 1998-03-01
|
||
|
||
There are *many* new features and improvements in this release. Here
|
||
is a brief, incomplete summary:
|
||
|
||
* Many new SQL features, including full SQL92 subselect capability
|
||
(everything is here but target-list subselects).
|
||
* Support for client-side environment variables to specify time zone
|
||
and date style.
|
||
* Socket interface for client/server connection. This is the default
|
||
now so you may need to start postmaster with the "-i" flag.
|
||
* Better password authorization mechanisms. Default table privileges
|
||
have changed.
|
||
* Old-style time travel has been removed. Performance has been
|
||
improved.
|
||
|
||
Note: Bruce Momjian wrote the following notes to introduce the new
|
||
release.
|
||
|
||
There are some general 6.3 issues that I want to mention. These are
|
||
only the big items that can not be described in one sentence. A review
|
||
of the detailed changes list is still needed.
|
||
|
||
First, we now have subselects. Now that we have them, I would like to
|
||
mention that without subselects, SQL is a very limited language.
|
||
Subselects are a major feature, and you should review your code for
|
||
places where subselects provide a better solution for your queries. I
|
||
think you will find that there are more uses for subselects than you
|
||
may think. Vadim has put us on the big SQL map with subselects, and
|
||
fully functional ones too. The only thing you can't do with subselects
|
||
is to use them in the target list.
|
||
|
||
Second, 6.3 uses Unix domain sockets rather than TCP/IP by default. To
|
||
enable connections from other machines, you have to use the new
|
||
postmaster -i option, and of course edit "pg_hba.conf". Also, for this
|
||
reason, the format of "pg_hba.conf" has changed.
|
||
|
||
Third, char() fields will now allow faster access than varchar() or
|
||
text. Specifically, the text and varchar() have a penalty for access
|
||
to any columns after the first column of this type. char() used to
|
||
also have this access penalty, but it no longer does. This may suggest
|
||
that you redesign some of your tables, especially if you have short
|
||
character columns that you have defined as varchar() or text. This and
|
||
other changes make 6.3 even faster than earlier releases.
|
||
|
||
We now have passwords definable independent of any Unix file. There
|
||
are new SQL USER commands. See the Administrator's Guide for more
|
||
information. There is a new table, pg_shadow, which is used to store
|
||
user information and user passwords, and it by default only
|
||
SELECT-able by the postgres super-user. pg_user is now a view of
|
||
pg_shadow, and is SELECT-able by PUBLIC. You should keep using pg_user
|
||
in your application without changes.
|
||
|
||
User-created tables now no longer have SELECT privilege to PUBLIC by
|
||
default. This was done because the ANSI standard requires it. You can
|
||
of course GRANT any privileges you want after the table is created.
|
||
System tables continue to be SELECT-able by PUBLIC.
|
||
|
||
We also have real deadlock detection code. No more sixty-second
|
||
timeouts. And the new locking code implements a FIFO better, so there
|
||
should be less resource starvation during heavy use.
|
||
|
||
Many complaints have been made about inadequate documentation in
|
||
previous releases. Thomas has put much effort into many new manuals
|
||
for this release. Check out the doc/ directory.
|
||
|
||
For performance reasons, time travel is gone, but can be implemented
|
||
using triggers (see "pgsql/contrib/spi/README"). Please check out the
|
||
new \d command for types, operators, etc. Also, views have their own
|
||
privileges now, not based on the underlying tables, so privileges on
|
||
them have to be set separately. Check "/pgsql/interfaces" for some new
|
||
ways to talk to PostgreSQL.
|
||
|
||
This is the first release that really required an explanation for
|
||
existing users. In many ways, this was necessary because the new
|
||
release removes many limitations, and the work-arounds people were
|
||
using are no longer needed.
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.3
|
||
|
||
A dump/restore using pg_dump or pg_dumpall is required for those
|
||
wishing to migrate data from any previous release of PostgreSQL.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Fix binary cursors broken by MOVE implementation(Vadim)
|
||
Fix for tcl library crash(Jan)
|
||
Fix for array handling, from Gerhard Hintermayer
|
||
Fix acl error, and remove duplicate pqtrace(Bruce)
|
||
Fix psql \e for empty file(Bruce)
|
||
Fix for textcat on varchar() fields(Bruce)
|
||
Fix for DBT Sendproc (Zeugswetter Andres)
|
||
Fix vacuum analyze syntax problem(Bruce)
|
||
Fix for international identifiers(Tatsuo)
|
||
Fix aggregates on inherited tables(Bruce)
|
||
Fix substr() for out-of-bounds data
|
||
Fix for select 1=1 or 2=2, select 1=1 and 2=2, and select sum(2+2)(Bruce)
|
||
Fix notty output to show status result. -q option still turns it off(Bruce)
|
||
Fix for count(*), aggs with views and multiple tables and sum(3)(Bruce)
|
||
Fix cluster(Bruce)
|
||
Fix for PQtrace start/stop several times(Bruce)
|
||
Fix a variety of locking problems like newer lock waiters getting
|
||
lock before older waiters, and having readlock people not share
|
||
locks if a writer is waiting for a lock, and waiting writers not
|
||
getting priority over waiting readers(Bruce)
|
||
Fix crashes in psql when executing queries from external files(James)
|
||
Fix problem with multiple order by columns, with the first one having
|
||
NULL values(Jeroen)
|
||
Use correct hash table support functions for float8 and int4(Thomas)
|
||
Re-enable JOIN= option in CREATE OPERATOR statement (Thomas)
|
||
Change precedence for boolean operators to match expected behavior(Thomas)
|
||
Generate elog(ERROR) on over-large integer(Bruce)
|
||
Allow multiple-argument functions in constraint clauses(Thomas)
|
||
Check boolean input literals for 'true','false','yes','no','1','0'
|
||
and throw elog(ERROR) if unrecognized(Thomas)
|
||
Major large objects fix
|
||
Fix for GROUP BY showing duplicates(Vadim)
|
||
Fix for index scans in MergeJion(Vadim)
|
||
|
||
Enhancements
|
||
------------
|
||
Subselects with EXISTS, IN, ALL, ANY key words (Vadim, Bruce, Thomas)
|
||
New User Manual(Thomas, others)
|
||
Speedup by inlining some frequently-called functions
|
||
Real deadlock detection, no more timeouts(Bruce)
|
||
Add SQL92 "constants" CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP,
|
||
CURRENT_USER(Thomas)
|
||
Modify constraint syntax to be SQL92-compliant(Thomas)
|
||
Implement SQL92 PRIMARY KEY and UNIQUE clauses using indexes(Thomas)
|
||
Recognize SQL92 syntax for FOREIGN KEY. Throw elog notice(Thomas)
|
||
Allow NOT NULL UNIQUE constraint clause (each allowed separately before)(Thomas
|
||
)
|
||
Allow PostgreSQL-style casting ("::") of non-constants(Thomas)
|
||
Add support for SQL3 TRUE and FALSE boolean constants(Thomas)
|
||
Support SQL92 syntax for IS TRUE/IS FALSE/IS NOT TRUE/IS NOT FALSE(Thomas)
|
||
Allow shorter strings for boolean literals (e.g. "t", "tr", "tru")(Thomas)
|
||
Allow SQL92 delimited identifiers(Thomas)
|
||
Implement SQL92 binary and hexadecimal string decoding (b'10' and x'1F')(Thomas
|
||
)
|
||
Support SQL92 syntax for type coercion of literal strings
|
||
(e.g. "DATETIME 'now'")(Thomas)
|
||
Add conversions for int2, int4, and OID types to and from text(Thomas)
|
||
Use shared lock when building indexes(Vadim)
|
||
Free memory allocated for an user query inside transaction block after
|
||
this query is done, was turned off in <= 6.2.1(Vadim)
|
||
New SQL statement CREATE PROCEDURAL LANGUAGE(Jan)
|
||
New PostgreSQL Procedural Language (PL) backend interface(Jan)
|
||
Rename pg_dump -H option to -h(Bruce)
|
||
Add Java support for passwords, European dates(Peter)
|
||
Use indexes for LIKE and ~, !~ operations(Bruce)
|
||
Add hash functions for datetime and timespan(Thomas)
|
||
Time Travel removed(Vadim, Bruce)
|
||
Add paging for \d and \z, and fix \i(Bruce)
|
||
Add Unix domain socket support to backend and to frontend library(Goran)
|
||
Implement CREATE DATABASE/WITH LOCATION and initlocation utility(Thomas)
|
||
Allow more SQL92 and/or PostgreSQL reserved words as column identifiers(Thomas)
|
||
Augment support for SQL92 SET TIME ZONE...(Thomas)
|
||
SET/SHOW/RESET TIME ZONE uses TZ backend environment variable(Thomas)
|
||
Implement SET keyword = DEFAULT and SET TIME ZONE DEFAULT(Thomas)
|
||
Enable SET TIME ZONE using TZ environment variable(Thomas)
|
||
Add PGDATESTYLE environment variable to frontend and backend initialization(Tho
|
||
mas)
|
||
Add PGTZ, PGCOSTHEAP, PGCOSTINDEX, PGRPLANS, PGGEQO
|
||
frontend library initialization environment variables(Thomas)
|
||
Regression tests time zone automatically set with "setenv PGTZ PST8PDT"(Thomas)
|
||
Add pg_description table for info on tables, columns, operators, types, and
|
||
aggregates(Bruce)
|
||
Increase 16 char limit on system table/index names to 32 characters(Bruce)
|
||
Rename system indexes(Bruce)
|
||
Add 'GERMAN' option to SET DATESTYLE(Thomas)
|
||
Define an "ISO-style" timespan output format with "hh:mm:ss" fields(Thomas)
|
||
Allow fractional values for delta times (e.g. '2.5 days')(Thomas)
|
||
Validate numeric input more carefully for delta times(Thomas)
|
||
Implement day of year as possible input to date_part()(Thomas)
|
||
Define timespan_finite() and text_timespan() functions(Thomas)
|
||
Remove archive stuff(Bruce)
|
||
Allow for a pg_password authentication database that is separate from
|
||
the system password file(Todd)
|
||
Dump ACLs, GRANT, REVOKE privileges(Matt)
|
||
Define text, varchar, and bpchar string length functions(Thomas)
|
||
Fix Query handling for inheritance, and cost computations(Bruce)
|
||
Implement CREATE TABLE/AS SELECT (alternative to SELECT/INTO)(Thomas)
|
||
Allow NOT, IS NULL, IS NOT NULL in constraints(Thomas)
|
||
Implement UNIONs for SELECT(Bruce)
|
||
Add UNION, GROUP, DISTINCT to INSERT(Bruce)
|
||
varchar() stores only necessary bytes on disk(Bruce)
|
||
Fix for BLOBs(Peter)
|
||
Mega-Patch for JDBC...see README_6.3 for list of changes(Peter)
|
||
Remove unused "option" from PQconnectdb()
|
||
New LOCK command and lock manual page describing deadlocks(Bruce)
|
||
Add new psql \da, \dd, \df, \do, \dS, and \dT commands(Bruce)
|
||
Enhance psql \z to show sequences(Bruce)
|
||
Show NOT NULL and DEFAULT in psql \d table(Bruce)
|
||
New psql .psqlrc file start-up(Andrew)
|
||
Modify sample start-up script in contrib/linux to show syslog(Thomas)
|
||
New types for IP and MAC addresses in contrib/ip_and_mac(TomH)
|
||
Unix system time conversions with date/time types in contrib/unixdate(Thomas)
|
||
Update of contrib stuff(Massimo)
|
||
Add Unix socket support to DBD::Pg(Goran)
|
||
New python interface (PyGreSQL 2.0)(D'Arcy)
|
||
New frontend/backend protocol has a version number, network byte order(Phil)
|
||
Security features in pg_hba.conf enhanced and documented, many cleanups(Phil)
|
||
CHAR() now faster access than VARCHAR() or TEXT
|
||
ecpg embedded SQL preprocessor
|
||
Reduce system column overhead(Vadmin)
|
||
Remove pg_time table(Vadim)
|
||
Add pg_type attribute to identify types that need length (bpchar, varchar)
|
||
Add report of offending line when COPY command fails
|
||
Allow VIEW privileges to be set separately from the underlying tables.
|
||
For security, use GRANT/REVOKE on views as appropriate(Jan)
|
||
Tables now have no default GRANT SELECT TO PUBLIC. You must
|
||
explicitly grant such privileges.
|
||
Clean up tutorial examples(Darren)
|
||
|
||
Source Tree Changes
|
||
-------------------
|
||
Add new html development tools, and flow chart in /tools/backend
|
||
Fix for SCO compiles
|
||
Stratus computer port Robert Gillies
|
||
Added support for shlib for BSD44_derived & i386_solaris
|
||
Make configure more automated(Brook)
|
||
Add script to check regression test results
|
||
Break parser functions into smaller files, group together(Bruce)
|
||
Rename heap_create to heap_create_and_catalog, rename heap_creatr
|
||
to heap_create()(Bruce)
|
||
Sparc/Linux patch for locking(TomS)
|
||
Remove PORTNAME and reorganize port-specific stuff(Marc)
|
||
Add optimizer README file(Bruce)
|
||
Remove some recursion in optimizer and clean up some code there(Bruce)
|
||
Fix for NetBSD locking(Henry)
|
||
Fix for libptcl make(Tatsuo)
|
||
AIX patch(Darren)
|
||
Change IS TRUE, IS FALSE, ... to expressions using "=" rather than
|
||
function calls to istrue() or isfalse() to allow optimization(Thomas)
|
||
Various fixes NetBSD/Sparc related(TomH)
|
||
Alpha linux locking(Travis,Ryan)
|
||
Change elog(WARN) to elog(ERROR)(Bruce)
|
||
FAQ for FreeBSD(Marc)
|
||
Bring in the PostODBC source tree as part of our standard distribution(Marc)
|
||
A minor patch for HP/UX 10 vs 9(Stan)
|
||
New pg_attribute.atttypmod for type-specific info like varchar length(Bruce)
|
||
UnixWare patches(Billy)
|
||
New i386 'lock' for spinlock asm(Billy)
|
||
Support for multiplexed backends is removed
|
||
Start an OpenBSD port
|
||
Start an AUX port
|
||
Start a Cygnus port
|
||
Add string functions to regression suite(Thomas)
|
||
Expand a few function names formerly truncated to 16 characters(Thomas)
|
||
Remove un-needed malloc() calls and replace with palloc()(Bruce)
|
||
_________________________________________________________________
|
||
|
||
Release 6.2.1
|
||
|
||
Release date: 1997-10-17
|
||
|
||
6.2.1 is a bug-fix and usability release on 6.2.
|
||
|
||
Summary:
|
||
|
||
* Allow strings to span lines, per SQL92.
|
||
* Include example trigger function for inserting user names on table
|
||
updates.
|
||
|
||
This is a minor bug-fix release on 6.2. For upgrades from pre-6.2
|
||
systems, a full dump/reload is required. Refer to the 6.2 release
|
||
notes for instructions.
|
||
_________________________________________________________________
|
||
|
||
Migration from version 6.2 to version 6.2.1
|
||
|
||
This is a minor bug-fix release. A dump/reload is not required from
|
||
version 6.2, but is required from any release prior to 6.2.
|
||
|
||
In upgrading from version 6.2, if you choose to dump/reload you will
|
||
find that avg(money) is now calculated correctly. All other bug fixes
|
||
take effect upon updating the executables.
|
||
|
||
Another way to avoid dump/reload is to use the following SQL command
|
||
from "psql" to update the existing system table:
|
||
update pg_aggregate set aggfinalfn = 'cash_div_flt8'
|
||
where aggname = 'avg' and aggbasetype = 790;
|
||
|
||
This will need to be done to every existing database, including
|
||
template1.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Allow TIME and TYPE column names(Thomas)
|
||
Allow larger range of true/false as boolean values(Thomas)
|
||
Support output of "now" and "current"(Thomas)
|
||
Handle DEFAULT with INSERT of NULL properly(Vadim)
|
||
Fix for relation reference counts problem in buffer manager(Vadim)
|
||
Allow strings to span lines, like ANSI(Thomas)
|
||
Fix for backward cursor with ORDER BY(Vadim)
|
||
Fix avg(cash) computation(Thomas)
|
||
Fix for specifying a column twice in ORDER/GROUP BY(Vadim)
|
||
Documented new libpq function to return affected rows, PQcmdTuples(Bruce)
|
||
Trigger function for inserting user names for INSERT/UPDATE(Brook Milligan)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.2
|
||
|
||
Release date: 1997-10-02
|
||
|
||
A dump/restore is required for those wishing to migrate data from
|
||
previous releases of PostgreSQL.
|
||
_________________________________________________________________
|
||
|
||
Migration from version 6.1 to version 6.2
|
||
|
||
This migration requires a complete dump of the 6.1 database and a
|
||
restore of the database in 6.2.
|
||
|
||
Note that the "pg_dump" and "pg_dumpall" utility from 6.2 should be
|
||
used to dump the 6.1 database.
|
||
_________________________________________________________________
|
||
|
||
Migration from version 1.x to version 6.2
|
||
|
||
Those migrating from earlier 1.* releases should first upgrade to 1.09
|
||
because the COPY output format was improved from the 1.02 release.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
Fix problems with pg_dump for inheritance, sequences, archive tables(Bruce)
|
||
Fix compile errors on overflow due to shifts, unsigned, and bad prototypes
|
||
from Solaris(Diab Jerius)
|
||
Fix bugs in geometric line arithmetic (bad intersection calculations)(Thomas)
|
||
Check for geometric intersections at endpoints to avoid rounding ugliness(Thoma
|
||
s)
|
||
Catch non-functional delete attempts(Vadim)
|
||
Change time function names to be more consistent(Michael Reifenberg)
|
||
Check for zero divides(Michael Reifenberg)
|
||
Fix very old bug which made rows changed/inserted by a command
|
||
visible to the command itself (so we had multiple update of
|
||
updated rows, etc.)(Vadim)
|
||
Fix for SELECT null, 'fail' FROM pg_am (Patrick)
|
||
SELECT NULL as EMPTY_FIELD now allowed(Patrick)
|
||
Remove un-needed signal stuff from contrib/pginterface
|
||
Fix OR (where x != 1 or x isnull didn't return rows with x NULL) (Vadim)
|
||
Fix time_cmp function (Vadim)
|
||
Fix handling of functions with non-attribute first argument in
|
||
WHERE clauses (Vadim)
|
||
Fix GROUP BY when order of entries is different from order
|
||
in target list (Vadim)
|
||
Fix pg_dump for aggregates without sfunc1 (Vadim)
|
||
|
||
Enhancements
|
||
------------
|
||
Default genetic optimizer GEQO parameter is now 8(Bruce)
|
||
Allow use parameters in target list having aggregates in functions(Vadim)
|
||
Added JDBC driver as an interface(Adrian & Peter)
|
||
pg_password utility
|
||
Return number of rows inserted/affected by INSERT/UPDATE/DELETE etc.(Vadim)
|
||
Triggers implemented with CREATE TRIGGER (SQL3)(Vadim)
|
||
SPI (Server Programming Interface) allows execution of queries inside
|
||
C-functions (Vadim)
|
||
NOT NULL implemented (SQL92)(Robson Paniago de Miranda)
|
||
Include reserved words for string handling, outer joins, and unions(Thomas)
|
||
Implement extended comments ("/* ... */") using exclusive states(Thomas)
|
||
Add "//" single-line comments(Bruce)
|
||
Remove some restrictions on characters in operator names(Thomas)
|
||
DEFAULT and CONSTRAINT for tables implemented (SQL92)(Vadim & Thomas)
|
||
Add text concatenation operator and function (SQL92)(Thomas)
|
||
Support WITH TIME ZONE syntax (SQL92)(Thomas)
|
||
Support INTERVAL unit TO unit syntax (SQL92)(Thomas)
|
||
Define types DOUBLE PRECISION, INTERVAL, CHARACTER,
|
||
and CHARACTER VARYING (SQL92)(Thomas)
|
||
Define type FLOAT(p) and rudimentary DECIMAL(p,s), NUMERIC(p,s) (SQL92)(Thomas)
|
||
Define EXTRACT(), POSITION(), SUBSTRING(), and TRIM() (SQL92)(Thomas)
|
||
Define CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP (SQL92)(Thomas)
|
||
Add syntax and warnings for UNION, HAVING, INNER and OUTER JOIN (SQL92)(Thomas)
|
||
Add more reserved words, mostly for SQL92 compliance(Thomas)
|
||
Allow hh:mm:ss time entry for timespan/reltime types(Thomas)
|
||
Add center() routines for lseg, path, polygon(Thomas)
|
||
Add distance() routines for circle-polygon, polygon-polygon(Thomas)
|
||
Check explicitly for points and polygons contained within polygons
|
||
using an axis-crossing algorithm(Thomas)
|
||
Add routine to convert circle-box(Thomas)
|
||
Merge conflicting operators for different geometric data types(Thomas)
|
||
Replace distance operator "<===>" with "<->"(Thomas)
|
||
Replace "above" operator "!^" with ">^" and "below" operator "!|" with "<^"(Tho
|
||
mas)
|
||
Add routines for text trimming on both ends, substring, and string position(Tho
|
||
mas)
|
||
Added conversion routines circle(box) and poly(circle)(Thomas)
|
||
Allow internal sorts to be stored in memory rather than in files(Bruce & Vadim)
|
||
Allow functions and operators on internally-identical types to succeed(Bruce)
|
||
Speed up backend start-up after profiling analysis(Bruce)
|
||
Inline frequently called functions for performance(Bruce)
|
||
Reduce open() calls(Bruce)
|
||
psql: Add PAGER for \h and \?,\C fix
|
||
Fix for psql pager when no tty(Bruce)
|
||
New entab utility(Bruce)
|
||
General trigger functions for referential integrity (Vadim)
|
||
General trigger functions for time travel (Vadim)
|
||
General trigger functions for AUTOINCREMENT/IDENTITY feature (Vadim)
|
||
MOVE implementation (Vadim)
|
||
|
||
Source Tree Changes
|
||
-------------------
|
||
HP-UX 10 patches (Vladimir Turin)
|
||
Added SCO support, (Daniel Harris)
|
||
MkLinux patches (Tatsuo Ishii)
|
||
Change geometric box terminology from "length" to "width"(Thomas)
|
||
Deprecate temporary unstored slope fields in geometric code(Thomas)
|
||
Remove restart instructions from INSTALL(Bruce)
|
||
Look in /usr/ucb first for install(Bruce)
|
||
Fix c++ copy example code(Thomas)
|
||
Add -o to psql manual page(Bruce)
|
||
Prevent relname unallocated string length from being copied into database(Bruce
|
||
)
|
||
Cleanup for NAMEDATALEN use(Bruce)
|
||
Fix pg_proc names over 15 chars in output(Bruce)
|
||
Add strNcpy() function(Bruce)
|
||
remove some (void) casts that are unnecessary(Bruce)
|
||
new interfaces directory(Marc)
|
||
Replace fopen() calls with calls to fd.c functions(Bruce)
|
||
Make functions static where possible(Bruce)
|
||
enclose unused functions in #ifdef NOT_USED(Bruce)
|
||
Remove call to difftime() in timestamp support to fix SunOS(Bruce & Thomas)
|
||
Changes for Digital Unix
|
||
Portability fix for pg_dumpall(Bruce)
|
||
Rename pg_attribute.attnvals to attdispersion(Bruce)
|
||
"intro/unix" manual page now "pgintro"(Bruce)
|
||
"built-in" manual page now "pgbuiltin"(Bruce)
|
||
"drop" manual page now "drop_table"(Bruce)
|
||
Add "create_trigger", "drop_trigger" manual pages(Thomas)
|
||
Add constraints regression test(Vadim & Thomas)
|
||
Add comments syntax regression test(Thomas)
|
||
Add PGINDENT and support program(Bruce)
|
||
Massive commit to run PGINDENT on all *.c and *.h files(Bruce)
|
||
Files moved to /src/tools directory(Bruce)
|
||
SPI and Trigger programming guides (Vadim & D'Arcy)
|
||
_________________________________________________________________
|
||
|
||
Release 6.1.1
|
||
|
||
Release date: 1997-07-22
|
||
_________________________________________________________________
|
||
|
||
Migration from version 6.1 to version 6.1.1
|
||
|
||
This is a minor bug-fix release. A dump/reload is not required from
|
||
version 6.1, but is required from any release prior to 6.1. Refer to
|
||
the release notes for 6.1 for more details.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
fix for SET with options (Thomas)
|
||
allow pg_dump/pg_dumpall to preserve ownership of all tables/objects(Bruce)
|
||
new psql \connect option allows changing usernames without changing databases
|
||
fix for initdb --debug option(Yoshihiko Ichikawa))
|
||
lextest cleanup(Bruce)
|
||
hash fixes(Vadim)
|
||
fix date/time month boundary arithmetic(Thomas)
|
||
fix timezone daylight handling for some ports(Thomas, Bruce, Tatsuo)
|
||
timestamp overhauled to use standard functions(Thomas)
|
||
other code cleanup in date/time routines(Thomas)
|
||
psql's \d now case-insensitive(Bruce)
|
||
psql's backslash commands can now have trailing semicolon(Bruce)
|
||
fix memory leak in psql when using \g(Bruce)
|
||
major fix for endian handling of communication to server(Thomas, Tatsuo)
|
||
Fix for Solaris assembler and include files(Yoshihiko Ichikawa)
|
||
allow underscores in usernames(Bruce)
|
||
pg_dumpall now returns proper status, portability fix(Bruce)
|
||
|
||
_________________________________________________________________
|
||
|
||
Release 6.1
|
||
|
||
Release date: 1997-06-08
|
||
|
||
The regression tests have been adapted and extensively modified for
|
||
the 6.1 release of PostgreSQL.
|
||
|
||
Three new data types (datetime, timespan, and circle) have been added
|
||
to the native set of PostgreSQL types. Points, boxes, paths, and
|
||
polygons have had their output formats made consistent across the data
|
||
types. The polygon output in misc.out has only been spot-checked for
|
||
correctness relative to the original regression output.
|
||
|
||
PostgreSQL 6.1 introduces a new, alternate optimizer which uses
|
||
genetic algorithms. These algorithms introduce a random behavior in
|
||
the ordering of query results when the query contains multiple
|
||
qualifiers or multiple tables (giving the optimizer a choice on order
|
||
of evaluation). Several regression tests have been modified to
|
||
explicitly order the results, and hence are insensitive to optimizer
|
||
choices. A few regression tests are for data types which are
|
||
inherently unordered (e.g. points and time intervals) and tests
|
||
involving those types are explicitly bracketed with "set geqo to
|
||
'off'" and "reset geqo".
|
||
|
||
The interpretation of array specifiers (the curly braces around atomic
|
||
values) appears to have changed sometime after the original regression
|
||
tests were generated. The current "./expected/*.out" files reflect
|
||
this new interpretation, which may not be correct!
|
||
|
||
The float8 regression test fails on at least some platforms. This is
|
||
due to differences in implementations of pow() and exp() and the
|
||
signaling mechanisms used for overflow and underflow conditions.
|
||
|
||
The "random" results in the random test should cause the "random" test
|
||
to be "failed", since the regression tests are evaluated using a
|
||
simple diff. However, "random" does not seem to produce random results
|
||
on my test machine (Linux/gcc/i686).
|
||
_________________________________________________________________
|
||
|
||
Migration to version 6.1
|
||
|
||
This migration requires a complete dump of the 6.0 database and a
|
||
restore of the database in 6.1.
|
||
|
||
Those migrating from earlier 1.* releases should first upgrade to 1.09
|
||
because the COPY output format was improved from the 1.02 release.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
packet length checking in library routines
|
||
lock manager priority patch
|
||
check for under/over flow of float8(Bruce)
|
||
multitable join fix(Vadim)
|
||
SIGPIPE crash fix(Darren)
|
||
large object fixes(Sven)
|
||
allow btree indexes to handle NULLs(Vadim)
|
||
timezone fixes(D'Arcy)
|
||
select SUM(x) can return NULL on no rows(Thomas)
|
||
internal optimizer, executor bug fixes(Vadim)
|
||
fix problem where inner loop in < or <= has no rows(Vadim)
|
||
prevent re-commuting join index clauses(Vadim)
|
||
fix join clauses for multiple tables(Vadim)
|
||
fix hash, hashjoin for arrays(Vadim)
|
||
fix btree for abstime type(Vadim)
|
||
large object fixes(Raymond)
|
||
fix buffer leak in hash indexes (Vadim)
|
||
fix rtree for use in inner scan (Vadim)
|
||
fix gist for use in inner scan, cleanups (Vadim, Andrea)
|
||
avoid unnecessary local buffers allocation (Vadim, Massimo)
|
||
fix local buffers leak in transaction aborts (Vadim)
|
||
fix file manager memmory leaks, cleanups (Vadim, Massimo)
|
||
fix storage manager memmory leaks (Vadim)
|
||
fix btree duplicates handling (Vadim)
|
||
fix deleted rows reincarnation caused by vacuum (Vadim)
|
||
fix SELECT varchar()/char() INTO TABLE made zero-length fields(Bruce)
|
||
many psql, pg_dump, and libpq memory leaks fixed using Purify (Igor)
|
||
|
||
Enhancements
|
||
------------
|
||
attribute optimization statistics(Bruce)
|
||
much faster new btree bulk load code(Paul)
|
||
BTREE UNIQUE added to bulk load code(Vadim)
|
||
new lock debug code(Massimo)
|
||
massive changes to libpg++(Leo)
|
||
new GEQO optimizer speeds table multitable optimization(Martin)
|
||
new WARN message for non-unique insert into unique key(Marc)
|
||
update x=-3, no spaces, now valid(Bruce)
|
||
remove case-sensitive identifier handling(Bruce,Thomas,Dan)
|
||
debug backend now pretty-prints tree(Darren)
|
||
new Oracle character functions(Edmund)
|
||
new plaintext password functions(Dan)
|
||
no such class or insufficient privilege changed to distinct messages(Dan)
|
||
new ANSI timestamp function(Dan)
|
||
new ANSI Time and Date types (Thomas)
|
||
move large chunks of data in backend(Martin)
|
||
multicolumn btree indexes(Vadim)
|
||
new SET var TO value command(Martin)
|
||
update transaction status on reads(Dan)
|
||
new locale settings for character types(Oleg)
|
||
new SEQUENCE serial number generator(Vadim)
|
||
GROUP BY function now possible(Vadim)
|
||
re-organize regression test(Thomas,Marc)
|
||
new optimizer operation weights(Vadim)
|
||
new psql \z grant/permit option(Marc)
|
||
new MONEY data type(D'Arcy,Thomas)
|
||
tcp socket communication speed improved(Vadim)
|
||
new VACUUM option for attribute statistics, and for certain columns (Vadim)
|
||
many geometric type improvements(Thomas,Keith)
|
||
additional regression tests(Thomas)
|
||
new datestyle variable(Thomas,Vadim,Martin)
|
||
more comparison operators for sorting types(Thomas)
|
||
new conversion functions(Thomas)
|
||
new more compact btree format(Vadim)
|
||
allow pg_dumpall to preserve database ownership(Bruce)
|
||
new SET GEQO=# and R_PLANS variable(Vadim)
|
||
old (!GEQO) optimizer can use right-sided plans (Vadim)
|
||
typechecking improvement in SQL parser(Bruce)
|
||
new SET, SHOW, RESET commands(Thomas,Vadim)
|
||
new \connect database USER option
|
||
new destroydb -i option (Igor)
|
||
new \dt and \di psql commands (Darren)
|
||
SELECT "\n" now escapes newline (A. Duursma)
|
||
new geometry conversion functions from old format (Thomas)
|
||
|
||
Source tree changes
|
||
-------------------
|
||
new configuration script(Marc)
|
||
readline configuration option added(Marc)
|
||
OS-specific configuration options removed(Marc)
|
||
new OS-specific template files(Marc)
|
||
no more need to edit Makefile.global(Marc)
|
||
re-arrange include files(Marc)
|
||
nextstep patches (Gregor Hoffleit)
|
||
removed Windows-specific code(Bruce)
|
||
removed postmaster -e option, now only postgres -e option (Bruce)
|
||
merge duplicate library code in front/backends(Martin)
|
||
now works with eBones, international Kerberos(Jun)
|
||
more shared library support
|
||
c++ include file cleanup(Bruce)
|
||
warn about buggy flex(Bruce)
|
||
DG/UX, Ultrix, IRIX, AIX portability fixes
|
||
_________________________________________________________________
|
||
|
||
Release 6.0
|
||
|
||
Release date: 1997-01-29
|
||
|
||
A dump/restore is required for those wishing to migrate data from
|
||
previous releases of PostgreSQL.
|
||
_________________________________________________________________
|
||
|
||
Migration from version 1.09 to version 6.0
|
||
|
||
This migration requires a complete dump of the 1.09 database and a
|
||
restore of the database in 6.0.
|
||
_________________________________________________________________
|
||
|
||
Migration from pre-1.09 to version 6.0
|
||
|
||
Those migrating from earlier 1.* releases should first upgrade to 1.09
|
||
because the COPY output format was improved from the 1.02 release.
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Bug Fixes
|
||
---------
|
||
ALTER TABLE bug - running postgress process needs to re-read table definition
|
||
Allow vacuum to be run on one table or entire database(Bruce)
|
||
Array fixes
|
||
Fix array over-runs of memory writes(Kurt)
|
||
Fix elusive btree range/non-range bug(Dan)
|
||
Fix for hash indexes on some types like time and date
|
||
Fix for pg_log size explosion
|
||
Fix permissions on lo_export()(Bruce)
|
||
Fix unitialized reads of memory(Kurt)
|
||
Fixed ALTER TABLE ... char(3) bug(Bruce)
|
||
Fixed a few small memory leaks
|
||
Fixed EXPLAIN handling of options and changed full_path option name
|
||
Fixed output of group acl privileges
|
||
Memory leaks (hunt and destroy with tools like Purify(Kurt)
|
||
Minor improvements to rules system
|
||
NOTIFY fixes
|
||
New asserts for run-checking
|
||
Overhauled parser/analyze code to properly report errors and increase speed
|
||
Pg_dump -d now handles NULL's properly(Bruce)
|
||
Prevent SELECT NULL from crashing server (Bruce)
|
||
Properly report errors when INSERT ... SELECT columns did not match
|
||
Properly report errors when insert column names were not correct
|
||
psql \g filename now works(Bruce)
|
||
psql fixed problem with multiple statements on one line with multiple outputs
|
||
Removed duplicate system OIDs
|
||
SELECT * INTO TABLE . GROUP/ORDER BY gives unlink error if table exists(Bruce)
|
||
Several fixes for queries that crashed the backend
|
||
Starting quote in insert string errors(Bruce)
|
||
Submitting an empty query now returns empty status, not just " " query(Bruce)
|
||
|
||
Enhancements
|
||
------------
|
||
Add EXPLAIN manual page(Bruce)
|
||
Add UNIQUE index capability(Dan)
|
||
Add hostname/user level access control rather than just hostname and user
|
||
Add synonym of != for <>(Bruce)
|
||
Allow "select oid,* from table"
|
||
Allow BY,ORDER BY to specify columns by number, or by non-alias table.column(Br
|
||
uce)
|
||
Allow COPY from the frontend(Bryan)
|
||
Allow GROUP BY to use alias column name(Bruce)
|
||
Allow actual compression, not just reuse on the same page(Vadim)
|
||
Allow installation-configuration option to auto-add all local users(Bryan)
|
||
Allow libpq to distinguish between text value '' and null(Bruce)
|
||
Allow non-postgres users with createdb privs to destroydb's
|
||
Allow restriction on who can create C functions(Bryan)
|
||
Allow restriction on who can do backend COPY(Bryan)
|
||
Can shrink tables, pg_time and pg_log(Vadim & Erich)
|
||
Change debug level 2 to print queries only, changed debug heading layout(Bruce)
|
||
Change default decimal constant representation from float4 to float8(Bruce)
|
||
European date format now set when postmaster is started
|
||
Execute lowercase function names if not found with exact case
|
||
Fixes for aggregate/GROUP processing, allow 'select sum(func(x),sum(x+y) from z
|
||
'
|
||
Gist now included in the distrubution(Marc)
|
||
Idend authentication of local users(Bryan)
|
||
Implement BETWEEN qualifier(Bruce)
|
||
Implement IN qualifier(Bruce)
|
||
libpq has PQgetisnull()(Bruce)
|
||
libpq++ improvements
|
||
New options to initdb(Bryan)
|
||
Pg_dump allow dump of OIDs(Bruce)
|
||
Pg_dump create indexes after tables are loaded for speed(Bruce)
|
||
Pg_dumpall dumps all databases, and the user table
|
||
Pginterface additions for NULL values(Bruce)
|
||
Prevent postmaster from being run as root
|
||
psql \h and \? is now readable(Bruce)
|
||
psql allow backslashed, semicolons anywhere on the line(Bruce)
|
||
psql changed command prompt for lines in query or in quotes(Bruce)
|
||
psql char(3) now displays as (bp)char in \d output(Bruce)
|
||
psql return code now more accurate(Bryan?)
|
||
psql updated help syntax(Bruce)
|
||
Re-visit and fix vacuum(Vadim)
|
||
Reduce size of regression diffs, remove timezone name difference(Bruce)
|
||
Remove compile-time parameters to enable binary distributions(Bryan)
|
||
Reverse meaning of HBA masks(Bryan)
|
||
Secure Authentication of local users(Bryan)
|
||
Speed up vacuum(Vadim)
|
||
Vacuum now had VERBOSE option(Bruce)
|
||
|
||
Source tree changes
|
||
-------------------
|
||
All functions now have prototypes that are compared against the calls
|
||
Allow asserts to be disabled easly from Makefile.global(Bruce)
|
||
Change oid constants used in code to #define names
|
||
Decoupled sparc and solaris defines(Kurt)
|
||
Gcc -Wall compiles cleanly with warnings only from unfixable constructs
|
||
Major include file reorganization/reduction(Marc)
|
||
Make now stops on compile failure(Bryan)
|
||
Makefile restructuring(Bryan, Marc)
|
||
Merge bsdi_2_1 to bsdi(Bruce)
|
||
Monitor program removed
|
||
Name change from Postgres95 to PostgreSQL
|
||
New config.h file(Marc, Bryan)
|
||
PG_VERSION now set to 6.0 and used by postmaster
|
||
Portability additions, including Ultrix, DG/UX, AIX, and Solaris
|
||
Reduced the number of #define's, centeralized #define's
|
||
Remove duplicate OIDS in system tables(Dan)
|
||
Remove duplicate system catalog info or report mismatches(Dan)
|
||
Removed many os-specific #define's
|
||
Restructured object file generation/location(Bryan, Marc)
|
||
Restructured port-specific file locations(Bryan, Marc)
|
||
Unused/uninialized variables corrected
|
||
_________________________________________________________________
|
||
|
||
Release 1.09
|
||
|
||
Release date: 1996-11-04
|
||
|
||
Sorry, we didn't keep track of changes from 1.02 to 1.09. Some of the
|
||
changes listed in 6.0 were actually included in the 1.02.1 to 1.09
|
||
releases.
|
||
_________________________________________________________________
|
||
|
||
Release 1.02
|
||
|
||
Release date: 1996-08-01
|
||
_________________________________________________________________
|
||
|
||
Migration from version 1.02 to version 1.02.1
|
||
|
||
Here is a new migration file for 1.02.1. It includes the 'copy' change
|
||
and a script to convert old ASCII files.
|
||
|
||
Note: The following notes are for the benefit of users who want to
|
||
migrate databases from Postgres95 1.01 and 1.02 to Postgres95
|
||
1.02.1.
|
||
|
||
If you are starting afresh with Postgres95 1.02.1 and do not need
|
||
to migrate old databases, you do not need to read any further.
|
||
|
||
In order to upgrade older Postgres95 version 1.01 or 1.02 databases to
|
||
version 1.02.1, the following steps are required:
|
||
1. Start up a new 1.02.1 postmaster
|
||
2. Add the new built-in functions and operators of 1.02.1 to 1.01 or
|
||
1.02 databases. This is done by running the new 1.02.1 server
|
||
against your own 1.01 or 1.02 database and applying the queries
|
||
attached at the end of the file. This can be done easily through
|
||
"psql". If your 1.01 or 1.02 database is named testdb and you have
|
||
cut the commands from the end of this file and saved them in
|
||
"addfunc.sql":
|
||
% psql testdb -f addfunc.sql
|
||
Those upgrading 1.02 databases will get a warning when executing
|
||
the last two statements in the file because they are already
|
||
present in 1.02. This is not a cause for concern.
|
||
_________________________________________________________________
|
||
|
||
Dump/Reload Procedure
|
||
|
||
If you are trying to reload a pg_dump or text-mode, copy tablename to
|
||
stdout generated with a previous version, you will need to run the
|
||
attached "sed" script on the ASCII file before loading it into the
|
||
database. The old format used '.' as end-of-data, while '\.' is now
|
||
the end-of-data marker. Also, empty strings are now loaded in as ''
|
||
rather than NULL. See the copy manual page for full details.
|
||
sed 's/^\.$/\\./g' <in_file >out_file
|
||
|
||
If you are loading an older binary copy or non-stdout copy, there is
|
||
no end-of-data character, and hence no conversion necessary.
|
||
-- following lines added by agc to reflect the case-insensitive
|
||
-- regexp searching for varchar (in 1.02), and bpchar (in 1.02.1)
|
||
create operator ~* (leftarg = bpchar, rightarg = text, procedure = texticregexe
|
||
q);
|
||
create operator !~* (leftarg = bpchar, rightarg = text, procedure = texticregex
|
||
ne);
|
||
create operator ~* (leftarg = varchar, rightarg = text, procedure = texticregex
|
||
eq);
|
||
create operator !~* (leftarg = varchar, rightarg = text, procedure = texticrege
|
||
xne);
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Source code maintenance and development
|
||
* worldwide team of volunteers
|
||
* the source tree now in CVS at ftp.ki.net
|
||
|
||
Enhancements
|
||
* psql (and underlying libpq library) now has many more options for
|
||
formatting output, including HTML
|
||
* pg_dump now output the schema and/or the data, with many fixes to
|
||
enhance completeness.
|
||
* psql used in place of monitor in administration shell scripts.
|
||
monitor to be deprecated in next release.
|
||
* date/time functions enhanced
|
||
* NULL insert/update/comparison fixed/enhanced
|
||
* TCL/TK lib and shell fixed to work with both tck7.4/tk4.0 and tcl7.5/tk4.1
|
||
|
||
Bug Fixes (almost too numerous to mention)
|
||
* indexes
|
||
* storage management
|
||
* check for NULL pointer before dereferencing
|
||
* Makefile fixes
|
||
|
||
New Ports
|
||
* added SolarisX86 port
|
||
* added BSD/OS 2.1 port
|
||
* added DG/UX port
|
||
_________________________________________________________________
|
||
|
||
Release 1.01
|
||
|
||
Release date: 1996-02-23
|
||
_________________________________________________________________
|
||
|
||
Migration from version 1.0 to version 1.01
|
||
|
||
The following notes are for the benefit of users who want to migrate
|
||
databases from Postgres95 1.0 to Postgres95 1.01.
|
||
|
||
If you are starting afresh with Postgres95 1.01 and do not need to
|
||
migrate old databases, you do not need to read any further.
|
||
|
||
In order to Postgres95 version 1.01 with databases created with
|
||
Postgres95 version 1.0, the following steps are required:
|
||
1. Set the definition of NAMEDATALEN in "src/Makefile.global" to 16
|
||
and OIDNAMELEN to 20.
|
||
2. Decide whether you want to use Host based authentication.
|
||
a. If you do, you must create a file name pg_hba in your
|
||
top-level data directory (typically the value of your
|
||
$PGDATA). "src/libpq/pg_hba" shows an example syntax.
|
||
b. If you do not want host-based authentication, you can comment
|
||
out the line
|
||
HBA = 1
|
||
in "src/Makefile.global"
|
||
Note that host-based authentication is turned on by default,
|
||
and if you do not take steps A or B above, the out-of-the-box
|
||
1.01 will not allow you to connect to 1.0 databases.
|
||
3. Compile and install 1.01, but DO NOT do the "initdb" step.
|
||
4. Before doing anything else, terminate your 1.0 postmaster, and
|
||
backup your existing $PGDATA directory.
|
||
5. Set your PGDATA environment variable to your 1.0 databases, but
|
||
set up path up so that 1.01 binaries are being used.
|
||
6. Modify the file "$PGDATA/PG_VERSION" from 5.0 to 5.1
|
||
7. Start up a new 1.01 postmaster
|
||
8. Add the new built-in functions and operators of 1.01 to 1.0
|
||
databases. This is done by running the new 1.01 server against
|
||
your own 1.0 database and applying the queries attached and saving
|
||
in the file 1.0_to_1.01.sql. This can be done easily through
|
||
"psql". If your 1.0 database is name testdb:
|
||
% psql testdb -f 1.0_to_1.01.sql
|
||
and then execute the following commands (cut and paste from here):
|
||
-- add builtin functions that are new to 1.01
|
||
|
||
create function int4eqoid (int4, oid) returns bool as 'foo'
|
||
language 'internal';
|
||
create function oideqint4 (oid, int4) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char2icregexeq (char2, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char2icregexne (char2, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char4icregexeq (char4, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char4icregexne (char4, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char8icregexeq (char8, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char8icregexne (char8, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char16icregexeq (char16, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function char16icregexne (char16, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function texticregexeq (text, text) returns bool as 'foo'
|
||
language 'internal';
|
||
create function texticregexne (text, text) returns bool as 'foo'
|
||
language 'internal';
|
||
|
||
-- add builtin functions that are new to 1.01
|
||
|
||
create operator = (leftarg = int4, rightarg = oid, procedure = int4eqoid);
|
||
create operator = (leftarg = oid, rightarg = int4, procedure = oideqint4);
|
||
create operator ~* (leftarg = char2, rightarg = text, procedure = char2icregexe
|
||
q);
|
||
create operator !~* (leftarg = char2, rightarg = text, procedure = char2icregex
|
||
ne);
|
||
create operator ~* (leftarg = char4, rightarg = text, procedure = char4icregexe
|
||
q);
|
||
create operator !~* (leftarg = char4, rightarg = text, procedure = char4icregex
|
||
ne);
|
||
create operator ~* (leftarg = char8, rightarg = text, procedure = char8icregexe
|
||
q);
|
||
create operator !~* (leftarg = char8, rightarg = text, procedure = char8icregex
|
||
ne);
|
||
create operator ~* (leftarg = char16, rightarg = text, procedure = char16icrege
|
||
xeq);
|
||
create operator !~* (leftarg = char16, rightarg = text, procedure = char16icreg
|
||
exne);
|
||
create operator ~* (leftarg = text, rightarg = text, procedure = texticregexeq)
|
||
;
|
||
create operator !~* (leftarg = text, rightarg = text, procedure = texticregexne
|
||
);
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Incompatibilities:
|
||
* 1.01 is backwards compatible with 1.0 database provided the user
|
||
follow the steps outlined in the MIGRATION_from_1.0_to_1.01 file.
|
||
If those steps are not taken, 1.01 is not compatible with 1.0 database.
|
||
|
||
Enhancements:
|
||
* added PQdisplayTuples() to libpq and changed monitor and psql to use it
|
||
* added NeXT port (requires SysVIPC implementation)
|
||
* added CAST .. AS ... syntax
|
||
* added ASC and DESC key words
|
||
* added 'internal' as a possible language for CREATE FUNCTION
|
||
internal functions are C functions which have been statically linked
|
||
into the postgres backend.
|
||
* a new type "name" has been added for system identifiers (table names,
|
||
attribute names, etc.) This replaces the old char16 type. The
|
||
of name is set by the NAMEDATALEN #define in src/Makefile.global
|
||
* a readable reference manual that describes the query language.
|
||
* added host-based access control. A configuration file ($PGDATA/pg_hba)
|
||
is used to hold the configuration data. If host-based access control
|
||
is not desired, comment out HBA=1 in src/Makefile.global.
|
||
* changed regex handling to be uniform use of Henry Spencer's regex code
|
||
regardless of platform. The regex code is included in the distribution
|
||
* added functions and operators for case-insensitive regular expressions.
|
||
The operators are ~* and !~*.
|
||
* pg_dump uses COPY instead of SELECT loop for better performance
|
||
|
||
Bug fixes:
|
||
* fixed an optimizer bug that was causing core dumps when
|
||
functions calls were used in comparisons in the WHERE clause
|
||
* changed all uses of getuid to geteuid so that effective uids are used
|
||
* psql now returns non-zero status on errors when using -c
|
||
* applied public patches 1-14
|
||
_________________________________________________________________
|
||
|
||
Release 1.0
|
||
|
||
Release date: 1995-09-05
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Copyright change:
|
||
* The copyright of Postgres 1.0 has been loosened to be freely modifiable
|
||
and modifiable for any purpose. Please read the COPYRIGHT file.
|
||
Thanks to Professor Michael Stonebraker for making this possible.
|
||
|
||
Incompatibilities:
|
||
* date formats have to be MM-DD-YYYY (or DD-MM-YYYY if you're using
|
||
EUROPEAN STYLE). This follows SQL-92 specs.
|
||
* "delimiters" is now a key word
|
||
|
||
Enhancements:
|
||
* sql LIKE syntax has been added
|
||
* copy command now takes an optional USING DELIMITER specification.
|
||
delimiters can be any single-character string.
|
||
* IRIX 5.3 port has been added.
|
||
Thanks to Paul Walmsley and others.
|
||
* updated pg_dump to work with new libpq
|
||
* \d has been added psql
|
||
Thanks to Keith Parks
|
||
* regexp performance for architectures that use POSIX regex has been
|
||
improved due to caching of precompiled patterns.
|
||
Thanks to Alistair Crooks
|
||
* a new version of libpq++
|
||
Thanks to William Wanders
|
||
|
||
Bug fixes:
|
||
* arbitrary userids can be specified in the createuser script
|
||
* \c to connect to other databases in psql now works.
|
||
* bad pg_proc entry for float4inc() is fixed
|
||
* users with usecreatedb field set can now create databases without
|
||
having to be usesuper
|
||
* remove access control entries when the entry no longer has any
|
||
privileges
|
||
* fixed non-portable datetimes implementation
|
||
* added kerberos flags to the src/backend/Makefile
|
||
* libpq now works with kerberos
|
||
* typographic errors in the user manual have been corrected.
|
||
* btrees with multiple index never worked, now we tell you they don't
|
||
work when you try to use them
|
||
_________________________________________________________________
|
||
|
||
Postgres95 Release 0.03
|
||
|
||
Release date: 1995-07-21
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Incompatible changes:
|
||
* BETA-0.3 IS INCOMPATIBLE WITH DATABASES CREATED WITH PREVIOUS VERSIONS
|
||
(due to system catalog changes and indexing structure changes).
|
||
* double-quote (") is deprecated as a quoting character for string literals;
|
||
you need to convert them to single quotes (').
|
||
* name of aggregates (eg. int4sum) are renamed in accordance with the
|
||
SQL standard (eg. sum).
|
||
* CHANGE ACL syntax is replaced by GRANT/REVOKE syntax.
|
||
* float literals (eg. 3.14) are now of type float4 (instead of float8 in
|
||
previous releases); you might have to do typecasting if you depend on it
|
||
being of type float8. If you neglect to do the typecasting and you assign
|
||
a float literal to a field of type float8, you may get incorrect values
|
||
stored!
|
||
* LIBPQ has been totally revamped so that frontend applications
|
||
can connect to multiple backends
|
||
* the usesysid field in pg_user has been changed from int2 to int4 to
|
||
allow wider range of Unix user ids.
|
||
* the netbsd/freebsd/bsd o/s ports have been consolidated into a
|
||
single BSD44_derived port. (thanks to Alistair Crooks)
|
||
|
||
SQL standard-compliance (the following details changes that makes postgres95
|
||
more compliant to the SQL-92 standard):
|
||
* the following SQL types are now built-in: smallint, int(eger), float, real,
|
||
char(N), varchar(N), date and time.
|
||
|
||
The following are aliases to existing postgres types:
|
||
smallint -> int2
|
||
integer, int -> int4
|
||
float, real -> float4
|
||
char(N) and varchar(N) are implemented as truncated text types. In
|
||
addition, char(N) does blank-padding.
|
||
* single-quote (') is used for quoting string literals; '' (in addition to
|
||
\') is supported as means of inserting a single quote in a string
|
||
* SQL standard aggregate names (MAX, MIN, AVG, SUM, COUNT) are used
|
||
(Also, aggregates can now be overloaded, i.e. you can define your
|
||
own MAX aggregate to take in a user-defined type.)
|
||
* CHANGE ACL removed. GRANT/REVOKE syntax added.
|
||
- Privileges can be given to a group using the "GROUP" key word.
|
||
For example:
|
||
GRANT SELECT ON foobar TO GROUP my_group;
|
||
The key word 'PUBLIC' is also supported to mean all users.
|
||
|
||
Privileges can only be granted or revoked to one user or group
|
||
at a time.
|
||
|
||
"WITH GRANT OPTION" is not supported. Only class owners can change
|
||
access control
|
||
- The default access control is to to grant users readonly access.
|
||
You must explicitly grant insert/update access to users. To change
|
||
this, modify the line in
|
||
src/backend/utils/acl.h
|
||
that defines ACL_WORLD_DEFAULT
|
||
|
||
Bug fixes:
|
||
* the bug where aggregates of empty tables were not run has been fixed. Now,
|
||
aggregates run on empty tables will return the initial conditions of the
|
||
aggregates. Thus, COUNT of an empty table will now properly return 0.
|
||
MAX/MIN of an empty table will return a row of value NULL.
|
||
* allow the use of \; inside the monitor
|
||
* the LISTEN/NOTIFY asynchronous notification mechanism now work
|
||
* NOTIFY in rule action bodies now work
|
||
* hash indexes work, and access methods in general should perform better.
|
||
creation of large btree indexes should be much faster. (thanks to Paul
|
||
Aoki)
|
||
|
||
Other changes and enhancements:
|
||
* addition of an EXPLAIN statement used for explaining the query execution
|
||
plan (eg. "EXPLAIN SELECT * FROM EMP" prints out the execution plan for
|
||
the query).
|
||
* WARN and NOTICE messages no longer have timestamps on them. To turn on
|
||
timestamps of error messages, uncomment the line in
|
||
src/backend/utils/elog.h:
|
||
/* define ELOG_TIMESTAMPS */
|
||
* On an access control violation, the message
|
||
"Either no such class or insufficient privilege"
|
||
will be given. This is the same message that is returned when
|
||
a class is not found. This dissuades non-privileged users from
|
||
guessing the existence of privileged classes.
|
||
* some additional system catalog changes have been made that are not
|
||
visible to the user.
|
||
|
||
libpgtcl changes:
|
||
* The -oid option has been added to the "pg_result" tcl command.
|
||
pg_result -oid returns oid of the last row inserted. If the
|
||
last command was not an INSERT, then pg_result -oid returns "".
|
||
* the large object interface is available as pg_lo* tcl commands:
|
||
pg_lo_open, pg_lo_close, pg_lo_creat, etc.
|
||
|
||
Portability enhancements and New Ports:
|
||
* flex/lex problems have been cleared up. Now, you should be able to use
|
||
flex instead of lex on any platforms. We no longer make assumptions of
|
||
what lexer you use based on the platform you use.
|
||
* The Linux-ELF port is now supported. Various configuration have been
|
||
tested: The following configuration is known to work:
|
||
kernel 1.2.10, gcc 2.6.3, libc 4.7.2, flex 2.5.2, bison 1.24
|
||
with everything in ELF format,
|
||
|
||
New utilities:
|
||
* ipcclean added to the distribution
|
||
ipcclean usually does not need to be run, but if your backend crashes
|
||
and leaves shared memory segments hanging around, ipcclean will
|
||
clean them up for you.
|
||
|
||
New documentation:
|
||
* the user manual has been revised and libpq documentation added.
|
||
_________________________________________________________________
|
||
|
||
Postgres95 Release 0.02
|
||
|
||
Release date: 1995-05-25
|
||
_________________________________________________________________
|
||
|
||
Changes
|
||
|
||
Incompatible changes:
|
||
* The SQL statement for creating a database is 'CREATE DATABASE' instead
|
||
of 'CREATEDB'. Similarly, dropping a database is 'DROP DATABASE' instead
|
||
of 'DESTROYDB'. However, the names of the executables 'createdb' and
|
||
'destroydb' remain the same.
|
||
|
||
New tools:
|
||
* pgperl - a Perl (4.036) interface to Postgres95
|
||
* pg_dump - a utility for dumping out a postgres database into a
|
||
script file containing query commands. The script files are in a ASCII
|
||
format and can be used to reconstruct the database, even on other
|
||
machines and other architectures. (Also good for converting
|
||
a Postgres 4.2 database to Postgres95 database.)
|
||
|
||
The following ports have been incorporated into postgres95-beta-0.02:
|
||
* the NetBSD port by Alistair Crooks
|
||
* the AIX port by Mike Tung
|
||
* the Windows NT port by Jon Forrest (more stuff but not done yet)
|
||
* the Linux ELF port by Brian Gallew
|
||
|
||
The following bugs have been fixed in postgres95-beta-0.02:
|
||
* new lines not escaped in COPY OUT and problem with COPY OUT when first
|
||
attribute is a '.'
|
||
* cannot type return to use the default user id in createuser
|
||
* SELECT DISTINCT on big tables crashes
|
||
* Linux installation problems
|
||
* monitor doesn't allow use of 'localhost' as PGHOST
|
||
* psql core dumps when doing \c or \l
|
||
* the "pgtclsh" target missing from src/bin/pgtclsh/Makefile
|
||
* libpgtcl has a hard-wired default port number
|
||
* SELECT DISTINCT INTO TABLE hangs
|
||
* CREATE TYPE doesn't accept 'variable' as the internallength
|
||
* wrong result using more than 1 aggregate in a SELECT
|
||
_________________________________________________________________
|
||
|
||
Postgres95 Release 0.01
|
||
|
||
Release date: 1995-05-01
|
||
|
||
Initial release.
|