< * pg_dump
> * pg_dump / pg_restore
> o Allow pg_dump to utilize multiple CPUs and I/O channels by dumping
> multiple objects simultaneously
>
> The difficulty with this is getting multiple dump processes to
> produce a single dump output file.
> http://archives.postgresql.org/pgsql-hackers/2008-02/msg00205.php
>
> o Allow pg_restore to utilize multiple CPUs and I/O channels by
> restoring multiple objects simultaneously
>
> This might require a pg_restore flag to indicate how many
> simultaneous operations should be performed. Only pg_dump's
> -Fc format has the necessary dependency information.
>
> o To better utilize resources, restore data, primary keys, and
> indexes for a single table before restoring the next table
>
> Hopefully this will allow the CPU-I/O load to be more uniform
> for simultaneous restores. The idea is to start data restores
> for several objects, and once the first object is done, to move
> on to its primary keys and indexes. Over time, simultaneous
> data loads and index builds will be running.
>
> o To better utilize resources, allow pg_restore to check foreign
> keys simultaneously, where possible
> o Allow pg_restore to create all indexes of a table
> concurrently, via a single heap scan
>
> This requires a pg_dump -Fc file because that format contains
> the required dependency information.
> http://archives.postgresql.org/pgsql-general/2007-05/msg01274.php
>
> o Allow pg_restore to load different parts of the COPY data
> simultaneously
< single heap scan, and have a restore of a pg_dump somehow use it
> single heap scan, and have pg_restore use it
< http://archives.postgresql.org/pgsql-general/2007-05/msg01274.php
> * Speed WAL recovery by allowing more than one page to be prefetched
>
> This involves having a separate process that can be told which pages
> the recovery process will need in the near future.
> http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php
>
ssh -L 3333:foo.com:5432 joe@foo.com
I think this should be changed to
ssh -L 3333:localhost:5432 joe@foo.com
The reason is that this assumes the postgres server on foo.com allows
connections from foo.com, which is not allowed by the default
listen_addresses setting. Add more detail explaining this.
pointed out by Faheem Mitha
Also change the example port number 3333 to 63333 so no one can complain
that we are stealing a reserved port number.
represented as "char ...[4]" not "int32". Since the length word is never
supposed to be accessed via this struct member anyway, this won't break
any existing code that is following the rules. The advantage is that C
compilers will no longer assume that a pointer to struct varlena is
word-aligned, which prevents incorrect optimizations in TOAST-pointer
access and perhaps other places. gcc doesn't seem to do this (at least
not at -O2), but the problem is demonstrable on some other compilers.
I changed struct inet as well, but didn't bother to touch a lot of other
struct definitions in which it wouldn't make any difference because there
were other fields forcing int alignment anyway. Hopefully none of those
struct definitions are used for accessing unaligned Datums.
- Change configure.in to use Autoconf 2.61 and update generated files.
- Update build system and documentation to support now directory variables
offered by Autoconf 2.61.
- Replace usages of PGAC_CHECK_ALIGNOF by AC_CHECK_ALIGNOF, now available
in Autoconf 2.61.
- Drop our patched version of AC_C_INLINE, as Autoconf now has the change.
outside the 32-bit-time_t range. Also, refer to Olson's tz database
as the 'zoneinfo' database, a name that upstream sometimes uses, not
'zic database' which they never use.
(or RETURNING), but only when the output name is not any SQL keyword.
This seems as close as we can get to the standard's syntax without a
great deal of thrashing. Original patch by Hiroshi Saito, amended by me.
doing anything interesting, such as calling RevalidateCachedPlan(). The
necessity of this is demonstrated by an example from Willem Buitendyk:
during a replan, the planner might try to evaluate SPI-using functions,
and so we'd better be in a clean SPI context.
A small downside of this fix is that these two functions will now fail
outright if called when not inside a SPI-using procedure (ie, a
SPI_connect/SPI_finish pair). The documentation never promised or suggested
that that would work, though; and they are normally used in concert with
other functions, mainly SPI_prepare, that always have failed in such a case.
So the odds of breaking something seem pretty low.
In passing, make SPI_is_cursor_plan's error handling convention clearer,
and fix documentation's erroneous claim that SPI_cursor_open would
return NULL on error.
Before 8.3 these functions could not invoke replanning, so there is probably
no need for back-patching.
in .bat simply did not work, and it called them in the wrong order,
some several times, and some not at all. So this unrolls all subroutine
calls.
This should fix the issues with clean deleting the wrong files reported
by Dave Page.
While at it, add the "clean dist" option to act like "make distclean",
and no longer remove the flex/bison output files by default. This shuold
fix the problem reported by Pavel Golub in bug #3909.
< * Improve deadlock detection when deleting items from shared buffers
> * Improve deadlock detection when a page cleaning lock conflicts
> with a shared buffer that is pinned
buildfarm plus a narrative description of the CPU types and operating systems
on which Postgres is likely to work. Now that we've almost completely
decoupled CPU and OS considerations, the former tabular style isn't all that
enlightening anyway. Perhaps more importantly, no one seems particularly
interested in maintaining the table by hand when we have the buildfarm.
prevent anti-wraparound vacuuming, and to caution against setting unreasonably
small values of freeze_max_age. Also put in a notice that this catalog is
likely to disappear entirely in some future release. Per discussion of
bug #3898 from Steven Flatt.
ParameterStatus message can be sent during COPY OUT: it's definitely
possible, since COPY from a SELECT subquery can trigger any user-defined
function.
>
> * Add the ability to automatically create materialized views
>
> Right now materialized views require the user to create triggers on the
> main table to keep the summary table current. SQL syntax should be able
> to manager the triggers and summary table automatically. A more
> sophisticated implementation would automatically retrieve from the
> summary table when the main table is referenced, if possible.
>
we need to be able to swallow NOTICE messages, and potentially also
ParameterStatus messages (although the latter would be a bit weird),
without exiting COPY OUT state. Fix it, and adjust the protocol documentation
to emphasize the need for this. Per off-list report from Alexander Galler.
and CLUSTER) execute as the table owner rather than the calling user, using
the same privilege-switching mechanism already used for SECURITY DEFINER
functions. The purpose of this change is to ensure that user-defined
functions used in index definitions cannot acquire the privileges of a
superuser account that is performing routine maintenance. While a function
used in an index is supposed to be IMMUTABLE and thus not able to do anything
very interesting, there are several easy ways around that restriction; and
even if we could plug them all, there would remain a risk of reading sensitive
information and broadcasting it through a covert channel such as CPU usage.
To prevent bypassing this security measure, execution of SET SESSION
AUTHORIZATION and SET ROLE is now forbidden within a SECURITY DEFINER context.
Thanks to Itagaki Takahiro for reporting this vulnerability.
Security: CVE-2007-6600
< * Allow major upgrades without dump/reload, perhaps using pg_upgrade
< [pg_upgrade]
< * Check for unreferenced table files created by transactions that were
< in-progress when the server terminated abruptly
<
< http://archives.postgresql.org/pgsql-patches/2006-06/msg00096.php
<
> * Check for unreferenced table files created by transactions that were
> in-progress when the server terminated abruptly
>
> http://archives.postgresql.org/pgsql-patches/2006-06/msg00096.php
>
< * Support table partitioning that allows a single table to be stored
< in subtables that are partitioned based on the primary key or a WHERE
< clause
< creation of rules for INSERT/UPDATE/DELETE, and constraints for
< rapid partition selection. Options could include range and hash
> creation of triggers or rules for INSERT/UPDATE/DELETE, and constraints
> for rapid partition selection. Options could include range and hash
<
< * Improve replication solutions
<
< o Load balancing
<
< You can use any of the master/slave replication servers to use a
< standby server for data warehousing. To allow read/write queries to
< multiple servers, you need multi-master replication like pgcluster.
<
< o Allow replication over unreliable or non-persistent links
<
<
< o Mark change-on-restart-only values in postgresql.conf
< All objects in the default database tablespace must have default
< tablespace specifications. This is because new databases are
< created by copying directories. If you mix default tablespace
< tables and tablespace-specified tables in the same directory,
< creating a new database from such a mixed directory would create a
< new database with tables that had incorrect explicit tablespaces.
< To fix this would require modifying pg_class in the newly copied
< database, which we don't currently do.
> Currently all objects in the default database tablespace must
> have default tablespace specifications. This is because new
> databases are created by copying directories. If you mix default
> tablespace tables and tablespace-specified tables in the same
> directory, creating a new database from such a mixed directory
> would create a new database with tables that had incorrect
> explicit tablespaces. To fix this would require modifying
> pg_class in the newly copied database, which we don't currently
> do.
<
< o Allow recovery.conf to allow the same syntax as
> o Allow recovery.conf to support the same syntax as
< * Allow user-defined types to specify a type modifier at table creation
< time
< * Allow all data types to cast to and from TEXT
<
< http://archives.postgresql.org/pgsql-hackers/2007-04/msg00017.php
<
<
< o Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
< o Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS
< INTERVAL MONTH), and this should return '12 months'
> o Add support for year-month syntax, INTERVAL '50-6' YEAR
> TO MONTH
> o Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1
> year' AS INTERVAL MONTH), and this should return '12 months'
< * Allow MONEY to be cast to/from other numeric data types
> * Allow MONEY to be easily cast to/from other numeric data types
>
< * Allow functions to have a schema search path specified at creation time
< * Fix cases where invalid byte encodings are accepted by the database,
< but throw an error on SELECT
<
< http://archives.postgresql.org/pgsql-hackers/2007-03/msg00767.php
< * Improve logging of prepared statements recovered during startup
> * Improve logging of prepared transactions recovered during startup
< * Make standard_conforming_strings the default in 8.4?
> * Make standard_conforming_strings the default in 8.5?
< * Allow the count returned by SELECT, etc to be to represent as an int64
> * Allow the count returned by SELECT, etc to be represented as an int64
< o Use more reliable method for CREATE DATABASE to get a consistent
< copy of db?
< o Fix transaction restriction checks for CREATE DATABASE and
< other commands
<
< http://archives.postgresql.org/pgsql-hackers/2007-01/msg00133.php
< currently allowed.
> currently allowed. This currently is done if the table is
> created inside the same transaction block as the COPY because
> no other backends can see the table.
< o Add SET PATH for schemas?
<
< This is basically the same as SET search_path.
< o Enforce referential integrity for system tables
< o Add Oracle-style packages (Pavel)
<
< A package would be a schema with session-local variables,
< public/private functions, and initialization functions. It
< is also possible to implement these capabilities
< in all schemas and not use a separate "packages"
< syntax at all.
<
< http://archives.postgresql.org/pgsql-hackers/2006-08/msg00384.php
<
< o Add single-step debugging of functions
< o Allow RETURN to return row or record functions
<
< http://archives.postgresql.org/pgsql-patches/2005-11/msg00045.php
< http://archives.postgresql.org/pgsql-patches/2006-08/msg00397.php
< http://archives.postgresql.org/pgsql-hackers/2006-09/msg00388.php
<
< o Fix problems with RETURN NEXT on tables with
< dropped/added columns after function creation
<
< http://archives.postgresql.org/pgsql-patches/2006-02/msg00165.php
<
< * Make consistent use of long/short command options --- pg_ctl needs
< long ones, pg_config doesn't have short ones, postgres doesn't have
< enough long ones, etc.
<
<
<
< o Consider parsing the -c string into individual queries so each
< is run in its own transaction
<
< http://archives.postgresql.org/pgsql-hackers/2007-01/msg00291.php
<
<
< o Remove unnecessary function pointer abstractions in pg_dump source
< code
> o Remove unnecessary function pointer abstractions in pg_dump source
> code
<
<
< o Fix SSL retry to avoid useless repeated connection attempts and
< ensuing misleading error messages
>
<
< This is difficult because it requires datatype-specific knowledge.
<
< * Improve commit_delay handling to reduce fsync()
< * %Add an option to sync() before fsync()'ing checkpoint files
>
< * Reduce lock time during VACUUM FULL by moving tuples with read lock,
< then write lock and truncate table
<
< Moved tuples are invisible to other backends so they don't require a
< write lock. However, the read lock promotion to write lock could lead
< to deadlock situations.
<
< * Prevent long-lived temporary tables from causing frozen-xid advancement
< starvation
<
< The problem is that autovacuum cannot vacuum them to set frozen xids;
< only the session that created them can do that.
<
<
<
< o Use free-space map information to guide refilling
< o Consider logging activity either to the logs or a system view
> The problem is that autovacuum cannot vacuum them to set frozen xids;
> only the session that created them can do that.
< * Add connection pooling
<
< It is unclear if this should be done inside the backend code or done
< by something external like pgpool. The passing of file descriptors to
< existing backends is one of the difficulties with a backend approach.
<
< * Consider reducing memory used for shared buffer reference count
<
< http://archives.postgresql.org/pgsql-hackers/2007-01/msg00752.php
<
< * %Remove memory/file descriptor freeing before ereport(ERROR)
< * %Promote debug_query_string into a server-side function current_query()
< * Allow ecpg to work with MSVC and BCC
< * Add xpath_array() to /contrib/xml2 to return results as an array
< * Allow building in directories containing spaces
<
< This is probably not possible because 'gmake' and other compiler tools
< do not fully support quoting of paths with spaces.
<
< * Fix sgmltools so PDFs can be generated with bookmarks
< * Split out libpq pgpass and environment documentation sections to make
< it easier for non-developers to find
< * Use strlcpy() rather than our StrNCpy() macro
<
< http://archives.postgresql.org/pgsql-hackers/2006-09/msg02108.php
<
< o Re-enable timezone output on log_line_prefix '%t' when a
< shorter timezone string is available
< * Allow statements across databases or servers with transaction
< semantics
<
< This can be done using dblink and two-phase commit.
> * Add Oracle-style packages (Pavel)
< * Add the features of packages
> A package would be a schema with session-local variables,
> public/private functions, and initialization functions. It
> is also possible to implement these capabilities
> in any schema and not use a separate "packages"
> syntax at all.
< o Make private objects accessible only to objects in the same schema
< o Allow current_schema.objname to access current schema objects
< o Add session variables
< o Allow nested schemas
> http://archives.postgresql.org/pgsql-hackers/2006-08/msg00384.php
Bruce Momjian
Magnus Hagander
Peter Eisentraut
Tom Lane
Andrew Dunstan
Alvaro Herrera