a relation's number of blocks, rather than the possibly-obsolete value
in pg_class.relpages. Scale the value in pg_class.reltuples correspondingly
to arrive at a hopefully more accurate number of rows. When pg_class
contains 0/0, estimate a tuple width from the column datatypes and divide
that into current file size to estimate number of rows. This improved
methodology allows us to jettison the ancient hacks that put bogus default
values into pg_class when a table is first created. Also, per a suggestion
from Simon, make VACUUM (but not VACUUM FULL or ANALYZE) adjust the value
it puts into pg_class.reltuples to try to represent the mean tuple density
instead of the minimal density that actually prevails just after VACUUM.
These changes alter the plans selected for certain regression tests, so
update the expected files accordingly. (I removed join_1.out because
it's not clear if it still applies; we can add back any variant versions
as they are shown to be needed.)
< * Make log_min_duration_statement output when the duration is reached rather
< than when the statement completes
<
< This prints long queries while they are running, making trouble shooting
< easier. Also, it eliminates the need for log_statement because it
< would now be the same as a log_min_duration_statement of zero.
> * Make log_min_duration_statement output when the duration is reached rather
> than when the statement completes
>
> This prints long queries while they are running, making trouble shooting
> easier. Also, it eliminates the need for log_statement because it
> would now be the same as a log_min_duration_statement of zero.
9c5
< Last updated: Mon Nov 29 23:33:09 EST 2004
> Last updated: Tue Nov 30 00:03:37 EST 2004
13a10,16
> #A hyphen, "-", marks changes that will appear in the upcoming 8.1 release.#
>
> Bracketed items, "[]", have more detail.
>
> This list contains all known PostgreSQL bugs and feature requests. If
> you would like to work on an item, please read the developer's FAQ
> first.
> * Auto-vacuum
> o Move into the backend code
> o Scan the buffer cache to find free space or use background writer
> o Use free-space map information to guide refilling
< information, either by name or offset from UTC
> information, either zone name or offset from UTC
>
> If the TIMESTAMP value is stored with a time zone name, interval
> computations should adjust based on the time zone rules, e.g. adding
> 24 hours to a timestamp would yield a different result from adding one
> day.
>
operations are now run as subtransactions, so that errors in them
can be reported as ordinary Perl or Tcl errors and caught by the
normal error handling convention of those languages. Also do some
minor code cleanup in pltcl.c: extract a large chunk of duplicated
code in pltcl_SPI_execute and pltcl_SPI_execute_plan into a shared
subroutine.
plain SUSET instead. Also delay processing of options received in
client connection request until after we know if the user is a superuser,
so that SUSET values can be set that way by legitimate superusers.
Per recent discussion.
< * Eliminate WAL logging for CREATE INDEX/REINDEX/CREATE TABLE AS when
< not doing WAL archiving
> * Eliminate WAL logging for CREATE TABLE AS when not doing WAL archiving
< * Allow GRANT/REVOKE permissions to be given to all schema objects with one
> * Allow GRANT/REVOKE permissions to be applied to all schema objects with one
60c60
< specifications. This is because new databases are created by copying
> specifications. This is because new databases are created by copying
63c63
< directory would create a new database with tables that had incorrect
> directory would create a new database with tables that had incorrect
72c72
<
>
85c85
< By not showing commented-out variables, we discourage people from
> By not showing commented-out variables, we discourage people from
91c91
< * Allow point-in-time recovery to archive partially filled write-ahead
> * Allow point-in-time recovery to archive partially filled write-ahead
102c102
< Currently all schemas are owned by the super-user because they are
> Currently all schemas are owned by the super-user because they are
128c128
< * Allow INET subnet tests with non-constants to be indexed
> * Allow INET subnet tests using non-constants to be indexed
143,144c143,144
< * Allow to_char to print localized month names
< * Allow functions to have a search path specified at creation time
> * Allow to_char() to print localized month names
> * Allow functions to have a schema search path specified at creation time
146c146
< * Add GUC variable to allow output of interval values in ISO8601 format
> * Add a GUC variable to allow output of interval values in ISO8601 format
154,155c154,155
< * Prevent inet cast to cidr if the unmasked bits are not zero, or
< zero bits
> * Prevent INET cast to CIDR if the unmasked bits are not zero, or
> zero the bits
158c158
< o Allow nulls in arrays
> o Allow NULLs in arrays
160,161c160,161
< o Delay resolution of array expression type so assignment coercion
< can be performed on empty array expressions
> o Delay resolution of array expression's data type so assignment
> coercion can be performed on empty array expressions
218,219c218,219
< key, foreign key [inheritance]
< * UNIQUE INDEX on base column not honored on inserts/updates from
> key, foreign key
> * UNIQUE INDEX on base column not honored on INSERTs/UPDATEs from
221c221
< (dup) should fail [inheritance]
> (dup) should fail
246c246
< * Fetch heap pages matching index entries in sequential order [performance]
> * Fetch heap pages matching index entries in sequential order
307c307
< functionality in DELETE. It's been agreed that the keyword should
> functionality in DELETE. It's been agreed that the keyword should
318c318
< * Allow PREPARE to automatically determine parameter types based on the SQL
> * Allow PREPARE to automatically determine parameter types based on the SQL
340,342d339
< * Allow CREATE TABLE foo (f1 INT CHECK (f1 > 0) CHECK (f1 < 10)) to work
< by searching for non-conflicting constraint names, and prefix with
< table name?
347c344
< new database.
> a new database.
350,351d346
< * Ignore temporary tables from other sessions when processing
< inheritance?
354,355c349,351
< * Add a session mode to warn about non-standard SQL usage in queries
< * Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules, triggers?)
> * Add a GUC variable to warn about non-standard SQL usage in queries
> * Add MERGE command that does UPDATE/DELETE, or on failure, INSERT (rules,
> triggers?)
357,359c353,356
< * Add NOVICE output level for helpful messages like automatic sequence/index creation
< * Add COMMENT ON for all cluster global objects (users, groups,
< databases and tablespaces)
> * Add NOVICE output level for helpful messages like automatic sequence/index
> creation
> * Add COMMENT ON for all cluster global objects (users, groups, databases
> and tablespaces)
363c360
< When enabled, this would allow errors in multi-statement transactions
> When enabled, this would allow errors in multi-statement transactions
417c414
< o Allow COPY to optionally include column headings as the first line
> o Allow COPY to optionally include column headings in the first line
450c447
<
>
462c459
< o Handle references to temporary tables that are created, destroyed,
> o Handle references to temporary tables that are created, destroyed,
464c461
<
>
469d465
< o Improve PL/PgSQL exception handling using savepoints
488c484
<
>
503d498
<
518c513
< o Add pg_dumpall custom format dumps.
> o Add pg_dumpall custom format dumps.
520c515
< This is probably best done by combining pg_dump and pg_dumpall
> This is probably best done by combining pg_dump and pg_dumpall
532d526
< o Improve error handling (?)
555c549
< Adding shared locks requires recording the table/rows numbers in a
> Adding shared locks requires recording the table/rows numbers in a
643c637
< Posix_fadvise() can control both sequential/random file caching and
> Posix_fadvise() can control both sequential/random file caching and
703c697
< from distributted.net, http://www1.distributed.net/source,
> from distributted.net, http://www1.distributed.net/source,
729c723
< * Add connection pooling [pool]
> * Add connection pooling
755d748
<
759c752
<
>
768c761
< so an abrupt operating system restart might lose a few seconds of
> so an abrupt operating system restart might lose a few seconds of
785c778
< * Add utility to compute accurate random_page_cost value
> * Create utility to compute accurate random_page_cost value
787,789d779
< * Allow sorting, temp files, temp tables to use multiple work directories
<
< This allows the I/O load to be spread across multiple disk drives.
795a786
>
808,809c799,800
<
< * Use mmap() rather than SYSV shared memory or to write WAL files (?) [mmap]
>
> * Use mmap() rather than SYSV shared memory or to write WAL files (?)
812,813c803,804
< portability issues. Anonymous mmap (or mmap to /dev/zero) is required
< to prevent I/O overhead.
> portability issues. Anonymous mmap (or mmap to /dev/zero) is required
> to prevent I/O overhead.
817,819c808,810
< Doing I/O to large tables would consume a lot of address space or
< require frequent mapping/unmapping. Extending the file also causes
< mapping problems that might require mapping only individual pages,
> Doing I/O to large tables would consume a lot of address space or
> require frequent mapping/unmapping. Extending the file also causes
> mapping problems that might require mapping only individual pages,
821c812
< way to _prevent_ I/O to disk from the dirty shared buffers so changes
> way to _prevent_ I/O to disk from the dirty shared buffers so changes
826c817
< tuple overhead
> per-tuple overhead
829,831c820,822
< This would involve using multiple threads or processes to do optimization,
< sorting, or execution of single query. The major advantage of such a
< feature would be to allow multiple CPUs to work together to process a
> This would involve using multiple threads or processes to do optimization,
> sorting, or execution of single query. The major advantage of such a
> feature would be to allow multiple CPUs to work together to process a
834c825
< * Research the use of larger pages sizes
> * Research the use of larger page sizes
842a834
> * Move some /contrib modules out to their own project sites
845d836
< * Improve access-permissions check on data directory in Cygwin (Tom)
847,848c838
< * Clarify use of 'application' and 'command' tags in SGML docs
< * Better document ability to build only certain interfaces (Marc)
> * Improve documentation to build only interfaces (Marc)
852,853d841
< * Research interaction of setitimer() and sleep() used by statement_timeout
< * Rename /scripts directory because they are all C programs now
856,857d843
< * Allow binaries to be statically linked so they are more easily relocated
< * Move some /contrib modules out to their own project sites
862c848
< o Remove per-backend parameter file and move into shared memory?
> o Remove per-backend parameter file and move into shared memory
877,878c863,864
< o Update clients to use data types, typmod, schema.table.column names of
< result sets using new query protocol
> o Update clients to use data types, typmod, schema.table.column names
> of result sets using new query protocol
900d885
< * Kris is Kris Jurka
910c895
< * Simon is Simon Riggs
> * Simon is Simon Riggs <simon@2ndquadrant.com>
913d897
< * Teodor is
