Prepare for final release.
This commit is contained in:
Bruce Momjian
parent
9ceaa677ad
commit
f0410b1e12
25
HISTORY
25
HISTORY
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@ -1,4 +1,4 @@
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PostgreSQL 6.3 Sun Feb 1 14:57:30 EST 1998
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PostgreSQL 6.3 Sun Mar 1 14:57:30 EST 1998
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-------------------------------------------------------------
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A dump/restore is required for those wishing to migrate data from
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@ -39,16 +39,16 @@ Generate elog(ERROR) on over-large integer(Bruce)
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Allow multiple-argument functions in constraint clauses(Thomas)
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Check boolean input literals for 'true','false','yes','no','1','0'
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and throw elog(ERROR) if unrecognized(Thomas)
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Change default table creation from ACL_RD to ACL_NO (aka private tables)(marc)
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Major large objects fix
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Enhancements
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------------
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Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas)
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New User Manual(Thomas, others)
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Speedup by inlining some frequently-called functions
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Real deadlock detection, no more timeouts(Bruce)
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<NOT DONE YET> Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas)
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Add SQL92 "constants" CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP,
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CURRENT_USER(Thomas)
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Speedup by inlining some frequently-called functions
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Modify constraint syntax to be SQL92-compliant(Thomas)
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Implement SQL92 PRIMARY KEY and UNIQUE clauses using indices(Thomas)
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Recognize SQL92 syntax for FOREIGN KEY. Throw elog notice(Thomas)
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@ -107,7 +107,6 @@ Add UNION, GROUP, DISTINCT to INSERT(Bruce)
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varchar() stores only necessary bytes on disk(Bruce)
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Fix for BLOBs(Peter)
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Mega-Patch for JDBC...see README_6.3 for list of changes(Peter)
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Allow installation data block size and max tuple size configuration(Darren)
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Remove unused "option" from PQconnectdb()
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New LOCK command and lock manual page describing deadlocks(Bruce)
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Add new psql \da, \dd, \df, \do, \dS, and \dT commands(Bruce)
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@ -122,8 +121,17 @@ Add Unix socket support to DBD::Pg(Goran)
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New python interface (PyGreSQL 2.0)(D'Arcy)
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New frontend/backend protocol has a version number, network byte order(Phil)
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Security features in pg_hba.conf enhanced and documented, many cleanups(Phil)
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New HTML and Postscript documentation(Thomas)
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CHAR() now faster access than VARCHAR() or TEXT
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ecpg embedded SQL preprocessor
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Add GROUP BY to INSERT INTO table SELECT * FROM table2
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Reduce system column overhead(Vadmin)
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Remove pg_time table(Vadim)
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Add pg_type attribute to identify types that need length (bpchar, varchar)
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Add report of offending line when COPY command fails
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Allow VIEW permissions to be set separately from the underlying tables.
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For security, use GRANT/REVOKE on views as appropriate(Jan)
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Tables now have no default GRANT SELECT TO PUBLIC. You must
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explicitly grant such permissions.
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Source Tree Changes
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-------------------
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@ -160,6 +168,7 @@ Start an AUX port
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Start a Cygnus port
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Add string functions to regression suite(Thomas)
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Expand a few function names formerly truncated to 16 characters(Thomas)
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Remove un-needed malloc() calls and replace with palloc()(Bruce)
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PostgreSQL 6.2.1 Fri Oct 17 00:01:27 EDT 1997
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94
doc/TODO
94
doc/TODO
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@ -1,6 +1,6 @@
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TODO list for PostgreSQL
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========================
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Last updated: Sun Feb 1 15:08:57 EST 1998
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Last updated: Fri Feb 27 13:32:53 EST 1998
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Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
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@ -30,6 +30,7 @@ Developers who have claimed items are:
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* Kurt is "Kurt J. Lidl" <lidl@va.pubnix.com>
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* Marc is Marc Fournier <scrappy@hub.org>
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* Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de>
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* Michael is Michael Meskes <meskes@topsystem.de>
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* Oleg is Oleg Bartunov <oleg@sai.msu.su>
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* Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU>
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* Patrick is Patrick van Kleef <pvk@pobox.com>
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@ -45,10 +46,10 @@ Developers who have claimed items are:
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* Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>
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* Vivek is Vivek Khera <khera@kci.kciLink.com>
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Additional; 6.3 developers include:
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Additional 6.3 developers include:
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---------------------------------
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* Billy is Billy G. Allie <Bill.Allie@mug.org>
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* Brook is Brook Milligan
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* Brook is Brook Milligan <brook@trillium.NMSU.Edu>
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* James is James Hughes <jamesh@interpath.com>
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* Jeroen is Jeroen van Vianen <jeroenv@design.nl>
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* Matt is Matt Maycock <maycock@intelliquest.com>
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@ -63,7 +64,8 @@ RELIABILITY
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* Overhaul bufmgr/lockmgr/transaction manager
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* -Fix CLUSTER
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* Remove EXTEND?
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* -Aggregates on VIEW always returns zero (maybe because there is no oid for views?)
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* -Aggregates on VIEW always returns zero (maybe because there is no oid for vi
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ews?)
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* CREATE VIEW requires super-user priviledge
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* Can lo_export()/lo_import() read/write anywhere, causing a security problem?
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* Tables that start with xinv confused to be large objects
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@ -79,9 +81,10 @@ RELIABILITY
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* UPDATE table SET table.value = 3 fails
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* -UPDATE key_table SET keyval=count(reftab.num) fails
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* -INSERT INTO ... SELECT DISTINCT ... does not accept DISTINCT
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* -INSERT INTO table SELECT id, count(*) FROM table2 GROUP BY id generates error
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* Make pg_dump preserve inheritance column order, do non-inherits first
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* User who can create databases can modify pg_database table
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* optimizer memory exhaustion with many OR's
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* elog() does not free all its memory(Jan)
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ENHANCEMENTS
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------------
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@ -145,7 +148,8 @@ ENHANCEMENTS
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* add UNIQUE capability to non-btree indexes
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* make number of backends a config parameter, storage/sinvaladt.h:MaxBackendId
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* certain indexes will not shrink, i.e. oid indexes with many inserts
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* make NULL's come out at the beginning or end depending on the ORDER BY direction
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* make NULL's come out at the beginning or end depending on the ORDER BY direct
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ion
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* change the library/backend interface to use network byte order
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* -allow unix domain sockets for local connections for performance and security
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* -Add PAGER for psql's \dt, \d, \z tablename
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@ -162,13 +166,24 @@ ENHANCEMENTS
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* Fix compile and security of Kerberos/GSSAPI code
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* Allow psql to print nulls as distinct from ""(?)
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* Allow variable casts with BETWEEN 'today'::asbtime AND 'today'::abstime
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* Allow VIEW permissions to be set separately from the underlying tables
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* -Allow VIEW permissions to be set separately from the underlying tables
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* Allow INSERT INTO ... SELECT ... FROM view to work
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* Allow text, char(), and varchar() overhead to be only 2 bytes, not 4 bytes
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* Make VACUUM on database not lock pg_class
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* Make VACUUM ANALYZE only use a readlock
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* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
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* Allow installation data block size and max tuple size configuration(Darren)
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* Allow views on a UNION
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* Allow views of aggregate columns
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* Allow variable block sizes(Darren)
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* System tables are now more update-able from SQL(Jan)
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* New pg_shadow file, pg_user is now a view of pg_shadow(Jan)
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PERFORMANCE
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-----------
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* Use indexes in ORDER BY, min(), max()
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* -Allow LIKE/wildcard matches to use indexes if the wildcard character is not first
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* Use indexes in ORDER BY, min(), max()(Costin Oproiu)
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* -Allow LIKE/wildcard matches to use indexes if the wildcard character is not
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first
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* Optimizing disjunctive queries
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* Fix bushy-plans (Martin)
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* Other optimizer bugs
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@ -181,6 +196,8 @@ PERFORMANCE
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* update pg_statistic table to remove operator column
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* make index creation use psort code, because it is now faster(Vadim)
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* remove fork()/exec() of backend and make it just fork()
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* Improve vacuum locking issues
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* Add base table name to \d index
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DOCUMENTATION
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-------------
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@ -195,33 +212,6 @@ DOCUMENTATION
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CHANGES IN THE 6.3 RELEASE
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--------------------------
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Developers who have claimed items are:
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-------------------------------------
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* Billy is Billy G. Allie <Bill.Allie@mug.org>
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* Brook is Brook Milligan
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* Bruce is Bruce Momjian <maillist@candle.pha.pa.us>
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* D'Arcy is D'Arcy J.M. Cain <darcy@druid.net>
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* Dan is Dan McGuirk <mcguirk@indirect.com>
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* Darren is Darren King <darrenk@insightdist.com>
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* Goran is Goran Thyni <goran@bildbasen.se>
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* Henry is Henry B. Hotz <hotz@jpl.nasa.gov>
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* James is James Hughes <jamesh@interpath.com>
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* Jan is Jan Wieck <wieck@sapserv.debis.de>
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* Jeroen is Jeroen van Vianen <jeroenv@design.nl>
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* Marc is Marc Fournier <scrappy@hub.org>
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* Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de>
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* Matt is Matt Maycock <maycock@intelliquest.com>
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* Peter is Peter T Mount <psqlhack@maidast.demon.co.uk>
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* Phil is Phil Thompson <phil@river-bank.demon.co.uk>
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* Ryan is Ryan Kirkpatrick <rkirkpat@nag.cs.colorado.edu>
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* Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
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* Thomas is Thomas Lockhart <lockhart@alumni.caltech.edu>
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* TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO>
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* TomS is Tom Szybist
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* Todd is Todd Brandys is <brandys@eng3.hep.uiuc.edu>
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* Travis is Travis Melhiser <melhiser@viper.co.union.nc.us>
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* Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>
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Bug Fixes
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---------
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Fix binary cursors broken by MOVE implementation(Vadim)
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@ -254,25 +244,28 @@ Generate elog(ERROR) on over-large integer(Bruce)
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Allow multiple-argument functions in constraint clauses(Thomas)
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Check boolean input literals for 'true','false','yes','no','1','0'
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and throw elog(ERROR) if unrecognized(Thomas)
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Major large objects fix
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Enhancements
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------------
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Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas)
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New User Manual(Thomas, others)
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Speedup by inlining some frequently-called functions
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Real deadlock detection, no more timeouts(Bruce)
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<NOT DONE YET> Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas)
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Add SQL92 "constants" CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP,
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CURRENT_USER(Thomas)
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Speedup by inlining some frequently-called functions
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Modify constraint syntax to be SQL92-compliant(Thomas)
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Implement SQL92 PRIMARY KEY and UNIQUE clauses using indices(Thomas)
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Recognize SQL92 syntax for FOREIGN KEY. Throw elog notice(Thomas)
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Allow NOT NULL UNIQUE constraint clause (each allowed separately before)(Thomas)
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Allow NOT NULL UNIQUE constraint clause (each allowed separately before)(Thomas
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)
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Allow Postgres-style casting ("::") of non-constants(Thomas)
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Add support for SQL3 TRUE and FALSE boolean constants(Thomas)
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Support SQL92 syntax for IS TRUE/IS FALSE/IS NOT TRUE/IS NOT FALSE(Thomas)
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Allow shorter strings for boolean literals (e.g. "t", "tr", "tru")(Thomas)
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Allow SQL92 delimited identifiers(Thomas)
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Implement SQL92 binary and hexadecimal string decoding (b'10' and x'1F')(Thomas)
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Implement SQL92 binary and hexadecimal string decoding (b'10' and x'1F')(Thomas
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)
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Support SQL92 syntax for type coercion of literal strings
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(e.g. "DATETIME 'now'")(Thomas)
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Add conversions for int2, int4, and OID types to and from text(Thomas)
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@ -294,7 +287,8 @@ Augment support for SQL92 SET TIME ZONE...(Thomas)
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SET/SHOW/RESET TIME ZONE uses TZ backend environment variable(Thomas)
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Implement SET keyword = DEFAULT and SET TIME ZONE DEFAULT(Thomas)
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Enable SET TIME ZONE using TZ environment variable(Thomas)
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Add PGDATESTYLE environment variable to frontend and backend initialization(Thomas)
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Add PGDATESTYLE environment variable to frontend and backend initialization(Tho
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mas)
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Add PGTZ, PGCOSTHEAP, PGCOSTINDEX, PGRPLANS, PGGEQO
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frontend library initialization environment variables(Thomas)
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Regression tests time zone automatically set with "setenv PGTZ PST8PDT"(Thomas)
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@ -321,7 +315,6 @@ Add UNION, GROUP, DISTINCT to INSERT(Bruce)
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varchar() stores only necessary bytes on disk(Bruce)
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Fix for BLOBs(Peter)
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Mega-Patch for JDBC...see README_6.3 for list of changes(Peter)
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Allow installation data block size and max tuple size configuration(Darren)
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Remove unused "option" from PQconnectdb()
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New LOCK command and lock manual page describing deadlocks(Bruce)
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Add new psql \da, \dd, \df, \do, \dS, and \dT commands(Bruce)
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@ -336,8 +329,17 @@ Add Unix socket support to DBD::Pg(Goran)
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New python interface (PyGreSQL 2.0)(D'Arcy)
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New frontend/backend protocol has a version number, network byte order(Phil)
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Security features in pg_hba.conf enhanced and documented, many cleanups(Phil)
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New HTML and Postscript documentation(Thomas)
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CHAR() now faster access than VARCHAR() or TEXT
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ecpg embedded SQL preprocessor
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Add GROUP BY to INSERT INTO table SELECT * FROM table2
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Reduce system column overhead(Vadmin)
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Remove pg_time table(Vadim)
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Add pg_type attribute to identify types that need length (bpchar, varchar)
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Add report of offending line when COPY command fails
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Allow VIEW permissions to be set separately from the underlying tables.
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For security, use GRANT/REVOKE on views as appropriate(Jan)
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Tables now have no default GRANT SELECT TO PUBLIC. You must
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explicitly grant such permissions.
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Source Tree Changes
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-------------------
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@ -374,3 +376,5 @@ Start an AUX port
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Start a Cygnus port
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Add string functions to regression suite(Thomas)
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Expand a few function names formerly truncated to 16 characters(Thomas)
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Remove un-needed malloc() calls and replace with palloc()(Bruce)
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@ -1,15 +1,60 @@
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This migration requires a complete dump of the 6.2 or 6.2.1 database and a
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restore of the database in 6.3.
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In addition, 6.3 has separate permissions for views, rather than relying
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on the permissions set on the underlying tables. For this reason, you will
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have to set permissions on your views if you want anything but the default
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permissions.
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There are some general 6.3 issues that I want to mention. These are
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only the big items that can not be described in one sentence. A review
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of the HISTORY files is still needed.
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6.3 has had its default permissions on a table set such that unless you
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are the owner, when a table is created, other users of the system won't
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have access to them. You *must* do a 'GRANT' for each table you wish open
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to other ppl.
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First, we now have subselects. Now that we have them, I would like to
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mention that without subselects, SQL is a very limited language.
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Subselects are a major feature, and you should review your code for
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places where subselects provide a better solution for your queries. I
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think you will find that there are more uses for subselects than you may
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think. Vadim has put us on the big SQL map with subselects, and fully
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functional ones too. The only thing you can't do with subselects is to
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use them in the target list.
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Those migrating from earlier 1.* releases should first upgrade to 1.09
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because the COPY output format was improved from the 1.02 release.
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Second, 6.3 uses unix domain sockets rather than TCP/IP by default. To
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enable connections from other machines, you have to use the new
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postmaster -i option, and of course edit pg_hba.conf. Also, for this
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reason, the format of pg_hba.conf has changed.
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Third, char() fields will now allow faster access than varchar() or
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text. Specifically, the text and varchar() have a penalty for access to
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any columns after the first column of this type. char() used to also
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have this access penalty, but it no longer does. This may suggest that
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you redesign some of your tables, especially if you have short character
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columns that you have defined as varchar() or text. This and other
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changes make 6.3 even faster than earlier releases.
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We now have passwords definable independent of any Unix file. There are
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new SQL USER commands. See the pg_hba.conf manual page for more
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information. There is a new table, pg_shadow, which is used to store
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user information and user passwords, and it by default only SELECT-able
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by the postgres super-user. pg_user is now a view of pg_shadow, and is
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SELECT-able by PUBLIC. You should keep using pg_user in your
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application without changes.
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User-created tables now no longer have SELECT permission to PUBLIC by
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default. This was done because the ANSI standard requires it. You can
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of course GRANT any permissions you want after the table is created.
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System tables continue to be SELECT-able by PUBLIC.
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We also have real deadlock detection code. No more sixty-second
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timeouts. And the new locking code implements a FIFO better, so there
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should be less resource starvation during heavy use. For performance
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reasons, time travel is gone, but can be implemented using triggers (see
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pgsql/contrib/spi/README). Please check out the new \d command for
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types, operators, etc. Also, views have their own permissions now, not
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based on the underlying tables, so permissions on them have to be set
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separately. Check /pgsql/interfaces for some new ways to talk to
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PostgreSQL.
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This is the first release that really required an explaination for
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existing users. In many ways, this was necessary because the new
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release removes many limitations, and the work-arounds people were using
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are no longer needed.
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Long live PostgreSQL.
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-- Bruce Momjian
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@ -1,6 +1,6 @@
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(1998-02-01)
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(1998-03-01)
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PostgreSQL has a Web site at http://www.postgresql.org/ which carries details
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on the latest release, upcoming features, and other information to make your
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work or play with PostgreSQL more productive.
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|
|
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Reference in New Issue