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13 years agoFix some sloppiness in new PL/python get_source_line() function.
Robert Haas [Fri, 8 Apr 2011 04:30:54 +0000 (00:30 -0400)]
Fix some sloppiness in new PL/python get_source_line() function.

Jan Urbański

13 years agoAvoid use of mixed slash style paths in arguments to xcopy in MSVC builds.
Andrew Dunstan [Fri, 8 Apr 2011 02:17:06 +0000 (22:17 -0400)]
Avoid use of mixed slash style paths in arguments to xcopy in MSVC builds.

Some versions of xcopy, notably on Windows 7 don't like it. Backpatch
to 8.3, where we first used xcopy.

13 years agoTweaks for SSI out-of-shared memory behavior.
Robert Haas [Thu, 7 Apr 2011 20:43:39 +0000 (16:43 -0400)]
Tweaks for SSI out-of-shared memory behavior.

If we call hash_search() with HASH_ENTER, it will bail out rather than
return NULL, so it's redundant to check for NULL again in the caller.
Thus, in cases where we believe it's impossible for the hash table to run
out of slots anyway, we can simplify the code slightly.

On the flip side, in cases where it's theoretically possible to run out of
space, we don't want to rely on dynahash.c to throw an error; instead,
we pass HASH_ENTER_NULL and throw the error ourselves if a NULL comes
back, so that we can provide a more descriptive error message.

Kevin Grittner

13 years agoModernize dlopen interface code for FreeBSD and OpenBSD.
Tom Lane [Thu, 7 Apr 2011 19:14:39 +0000 (15:14 -0400)]
Modernize dlopen interface code for FreeBSD and OpenBSD.

Remove the hard-wired assumption that __mips__ (and only __mips__) lacks
dlopen in FreeBSD and OpenBSD.  This assumption is outdated at least for
OpenBSD, as per report from an anonymous 9.1 tester.  We can perfectly well
use HAVE_DLOPEN instead to decide which code to use.

Some other cosmetic adjustments to make freebsd.c, netbsd.c, and openbsd.c
exactly alike.

13 years agoAllow pg_upgrade with PGCLIENTENCODING set
Peter Eisentraut [Thu, 7 Apr 2011 16:22:34 +0000 (19:22 +0300)]
Allow pg_upgrade with PGCLIENTENCODING set

This used to work, but since PGCLIENTENCODING is now a connection
option variable, pg_upgrade would prevent it.

13 years agoFix SortTocFromFile() to cope with lines that are too long for its buffer.
Tom Lane [Thu, 7 Apr 2011 15:40:23 +0000 (11:40 -0400)]
Fix SortTocFromFile() to cope with lines that are too long for its buffer.

The original coding supposed that a dump TOC file could never contain lines
longer than 1K.  The folly of that was exposed by a recent report from
Per-Olov Esgard.  We only really need to see the first dozen or two bytes
of each line, since we're just trying to read off the numeric ID at the
start of the line; so there's no need for a particularly huge buffer.
What there is a need for is logic to not process continuation bufferloads.

Back-patch to all supported branches, since it's always been like this.

13 years agoPreserve pg_largeobject_metadata.relfrozenxid in pg_upgrade.
Bruce Momjian [Thu, 7 Apr 2011 13:57:09 +0000 (09:57 -0400)]
Preserve pg_largeobject_metadata.relfrozenxid in pg_upgrade.

This is needed only in 9.1 because only 9.0 had this and no one is
upgrading from a 9.0 beta to 9.0 anymore.  We basically don't backpatch
9.0 beta fixes at this point.

13 years agoSimplify structure of query used to gather database object information
Bruce Momjian [Thu, 7 Apr 2011 10:22:40 +0000 (06:22 -0400)]
Simplify structure of query used to gather database object information
in pg_upgrade.

13 years agoFix collations when we call transformWhereClause from outside the parser.
Tom Lane [Thu, 7 Apr 2011 06:34:57 +0000 (02:34 -0400)]
Fix collations when we call transformWhereClause from outside the parser.

Previous patches took care of assorted places that call transformExpr from
outside the main parser, but I overlooked the fact that some places use
transformWhereClause as a shortcut for transformExpr + coerce_to_boolean.
In particular this broke collation-sensitive index WHERE clauses, as per
report from Thom Brown.  Trigger WHEN and rule WHERE clauses too.

I'm not forcing initdb for this fix, but any affected indexes, triggers,
or rules will need to be dropped and recreated.

13 years agoRevise the API for GUC variable assign hooks.
Tom Lane [Thu, 7 Apr 2011 04:11:01 +0000 (00:11 -0400)]
Revise the API for GUC variable assign hooks.

The previous functions of assign hooks are now split between check hooks
and assign hooks, where the former can fail but the latter shouldn't.
Aside from being conceptually clearer, this approach exposes the
"canonicalized" form of the variable value to guc.c without having to do
an actual assignment.  And that lets us fix the problem recently noted by
Bernd Helmle that the auto-tune patch for wal_buffers resulted in bogus
log messages about "parameter "wal_buffers" cannot be changed without
restarting the server".  There may be some speed advantage too, because
this design lets hook functions avoid re-parsing variable values when
restoring a previous state after a rollback (they can store a pre-parsed
representation of the value instead).  This patch also resolves a
longstanding annoyance about custom error messages from variable assign
hooks: they should modify, not appear separately from, guc.c's own message
about "invalid parameter value".

13 years agoUpdate regression test files for PL/Python traceback patch
Peter Eisentraut [Wed, 6 Apr 2011 20:19:00 +0000 (23:19 +0300)]
Update regression test files for PL/Python traceback patch

13 years agoReplace the confusing exit_nicely() by an atexit/on_exit hook
Peter Eisentraut [Wed, 6 Apr 2011 20:00:44 +0000 (23:00 +0300)]
Replace the confusing exit_nicely() by an atexit/on_exit hook

13 years agoAdd traceback information to PL/Python errors
Peter Eisentraut [Wed, 6 Apr 2011 19:36:06 +0000 (22:36 +0300)]
Add traceback information to PL/Python errors

This mimics the traceback information the Python interpreter prints
with exceptions.

Jan Urbański

13 years agoUpdate key words table for 9.1
Peter Eisentraut [Tue, 5 Apr 2011 21:16:13 +0000 (00:16 +0300)]
Update key words table for 9.1

13 years agoRepair some flakiness in CheckTargetForConflictsIn.
Robert Haas [Tue, 5 Apr 2011 19:16:59 +0000 (15:16 -0400)]
Repair some flakiness in CheckTargetForConflictsIn.

When we release and reacquire SerializableXactHashLock, we must recheck
whether an R/W conflict still needs to be flagged, because it could have
changed under us in the meantime.  And when we release the partition
lock, we must re-walk the list of predicate locks from the beginning,
because our pointer could get invalidated under us.

Bug report #5952 by Yamamoto Takashi.  Patch by Kevin Grittner.

13 years agoChange "Id" to "id" in some SGML tags
Alvaro Herrera [Tue, 5 Apr 2011 18:06:06 +0000 (15:06 -0300)]
Change "Id" to "id" in some SGML tags

Gabriele Bartolini

13 years agoTypo fixes.
Robert Haas [Tue, 5 Apr 2011 16:40:17 +0000 (12:40 -0400)]
Typo fixes.

Erik Rijkers

13 years agoAdd casts from int4 and int8 to numeric.
Robert Haas [Tue, 5 Apr 2011 13:35:43 +0000 (09:35 -0400)]
Add casts from int4 and int8 to numeric.

Joey Adams, per gripe from Ramanujam.  Review by myself and Tom Lane.

13 years agoAvoid assuming there will be only 3 states for synchronous_commit.
Simon Riggs [Mon, 4 Apr 2011 22:23:13 +0000 (23:23 +0100)]
Avoid assuming there will be only 3 states for synchronous_commit.
Also avoid hardcoding the current default state by giving it the name
"on" and replace with a meaningful name that reflects its behaviour.
Coding only, no change in behaviour.

13 years agoCentralise release note items related to recovery and replication
Simon Riggs [Mon, 4 Apr 2011 21:38:43 +0000 (22:38 +0100)]
Centralise release note items related to recovery and replication

13 years agoUpdate comments and credit doc proofreaders
Simon Riggs [Mon, 4 Apr 2011 21:36:09 +0000 (22:36 +0100)]
Update comments and credit doc proofreaders

13 years agoUpdate MSVC toolchain to match SGML entity uppercasing
Alvaro Herrera [Mon, 4 Apr 2011 20:42:42 +0000 (16:42 -0400)]
Update MSVC toolchain to match SGML entity uppercasing

Per Robert Haas

13 years agoMerge synchronous_replication setting into synchronous_commit.
Robert Haas [Mon, 4 Apr 2011 20:13:01 +0000 (16:13 -0400)]
Merge synchronous_replication setting into synchronous_commit.

This means one less thing to configure when setting up synchronous
replication, and also avoids some ambiguity around what the behavior
should be when the settings of these variables conflict.

Fujii Masao, with additional hacking by me.

13 years agoUppercase <!ENTITY> and <!DOCTYPE> tags in SGML source
Alvaro Herrera [Mon, 4 Apr 2011 20:07:53 +0000 (16:07 -0400)]
Uppercase <!ENTITY> and <!DOCTYPE> tags in SGML source

This improves compatibility with external toolchains, such as those used
by some documentation translation tools.

Gabriele Bartolini

13 years agoAdd missing check on invocation of trusted procedures.
Robert Haas [Mon, 4 Apr 2011 17:25:42 +0000 (13:25 -0400)]
Add missing check on invocation of trusted procedures.

KaiGai Kohei

13 years agoInclude pid in pg_lock_status() results even for SIREAD locks.
Robert Haas [Mon, 4 Apr 2011 17:20:18 +0000 (13:20 -0400)]
Include pid in pg_lock_status() results even for SIREAD locks.

Dan Ports

13 years agoDuplicate expansion of "direction" from FETCH's synopsis into MOVE
Alvaro Herrera [Mon, 4 Apr 2011 16:03:41 +0000 (12:03 -0400)]
Duplicate expansion of "direction" from FETCH's synopsis into MOVE

13 years agoRearrange "add column" logic to merge columns at exec time.
Robert Haas [Mon, 4 Apr 2011 01:52:47 +0000 (21:52 -0400)]
Rearrange "add column" logic to merge columns at exec time.

The previous coding set attinhcount too high in some cases, resulting in
an undumpable, undroppable column.  Per bug #5856, reported by Naoya
Anzai.  See also commit 31b6fc06d83c6de3644c8f2921eb7de0eb92fac3, which
fixes a similar bug in ALTER TABLE .. ADD CONSTRAINT.

Patch by Noah Misch.

13 years agoImprove documentation on the range of the numeric data type.
Robert Haas [Sun, 3 Apr 2011 23:56:22 +0000 (19:56 -0400)]
Improve documentation on the range of the numeric data type.

Gianni Ciolli, reviewed by Noah Misch

13 years agoRemove mention of using "man" from the tutorial.
Robert Haas [Sun, 3 Apr 2011 23:49:05 +0000 (19:49 -0400)]
Remove mention of using "man" from the tutorial.

This isn't applicable on Windows, and the internal link to the
psql documentation should be more than sufficient.

Susanne Ebrecht

13 years agoAvoid possible hang during smart shutdown.
Robert Haas [Sun, 3 Apr 2011 23:42:00 +0000 (19:42 -0400)]
Avoid possible hang during smart shutdown.

If a smart shutdown occurs just as a child is starting up, and the
child subsequently becomes a walsender, there is a race condition:
the postmaster might count the exstant backends, determine that there
is one normal backend, and wait for it to die off.  Had the walsender
transition already occurred before the postmaster counted, it would
have proceeded with the shutdown.

To fix this, have each child that transforms into a walsender kick
the postmaster just after doing so, so that the state machine is
certain to advance.

Fujii Masao

13 years agoFix typo in PQconnectStartParams().
Tom Lane [Sat, 2 Apr 2011 22:05:42 +0000 (18:05 -0400)]
Fix typo in PQconnectStartParams().

This would lead to leaking the PGconn structure after an error detected by
conninfo_array_parse(), as well as failing to return a useful error message
in such cases.  Backpatch to 9.0 where the error was introduced.

Joseph Adams

13 years agoEscape greater than and less than characters in docs.
Heikki Linnakangas [Sat, 2 Apr 2011 14:06:43 +0000 (17:06 +0300)]
Escape greater than and less than characters in docs.

Susanne Ebrecht and me

13 years agoAvoid palloc before CurrentMemoryContext is set up on win32
Magnus Hagander [Fri, 1 Apr 2011 17:58:36 +0000 (19:58 +0200)]
Avoid palloc before CurrentMemoryContext is set up on win32

Instead, write the unconverted output - it will be in the wrong
encoding, but at least we don't crash.

Rushabh Lathia

13 years agoTab completion for COMMENT ON FOREIGN DATA WRAPPER / SERVER.
Robert Haas [Fri, 1 Apr 2011 17:15:49 +0000 (13:15 -0400)]
Tab completion for COMMENT ON FOREIGN DATA WRAPPER / SERVER.

13 years agopg_dump support for comments on FOREIGN DATA WRAPPER and SERVER objects.
Robert Haas [Fri, 1 Apr 2011 15:40:37 +0000 (11:40 -0400)]
pg_dump support for comments on FOREIGN DATA WRAPPER and SERVER objects.

Shigeru Hanada, with some corrections.

13 years agoSupport comments on FOREIGN DATA WRAPPER and SERVER objects.
Robert Haas [Fri, 1 Apr 2011 15:28:28 +0000 (11:28 -0400)]
Support comments on FOREIGN DATA WRAPPER and SERVER objects.

This mostly involves making it work with the objectaddress.c framework,
which does most of the heavy lifting.  In that vein, change
GetForeignDataWrapperOidByName to get_foreign_data_wrapper_oid and
GetForeignServerOidByName to get_foreign_server_oid, to match the
pattern we use for other object types.

Robert Haas and Shigeru Hanada

13 years agoFix compiler warning.
Robert Haas [Fri, 1 Apr 2011 14:35:52 +0000 (10:35 -0400)]
Fix compiler warning.

13 years agoFix two missing spaces in error messages.
Heikki Linnakangas [Fri, 1 Apr 2011 11:41:39 +0000 (14:41 +0300)]
Fix two missing spaces in error messages.

Josh Kupershmidt

13 years agoFix a tiny race condition in predicate locking. Need to hold the lock while
Heikki Linnakangas [Thu, 31 Mar 2011 15:43:23 +0000 (18:43 +0300)]
Fix a tiny race condition in predicate locking. Need to hold the lock while
examining the head of predicate locks list. Also, fix the comment of
RemoveTargetIfNoLongerUsed, it was neglected when we changed the way update
chains are handled.

Kevin Grittner

13 years agoIncrease SHMEM_INDEX_SIZE from 32 to 64. We're currently at 40 entries in
Heikki Linnakangas [Thu, 31 Mar 2011 10:37:01 +0000 (13:37 +0300)]
Increase SHMEM_INDEX_SIZE from 32 to 64. We're currently at 40 entries in
ShmemIndex, so 64 leaves some headroom.

Kevin Grittner

13 years agoDon't leak the temporary PLyProcedure struct we create for inline plpython
Heikki Linnakangas [Thu, 31 Mar 2011 09:37:11 +0000 (12:37 +0300)]
Don't leak the temporary PLyProcedure struct we create for inline plpython
blocks.

Investigation by Jan Urbański, though I didn't use his patch.

13 years agoReword the phrase on zero replication_timeout in the docs.
Heikki Linnakangas [Thu, 31 Mar 2011 07:19:29 +0000 (10:19 +0300)]
Reword the phrase on zero replication_timeout in the docs.

13 years agoImprove error message when WAL ends before reaching end of online backup.
Heikki Linnakangas [Thu, 31 Mar 2011 07:09:49 +0000 (10:09 +0300)]
Improve error message when WAL ends before reaching end of online backup.

13 years agoMention pg_upgrade sets autovacuum_freeze_max_age to maximum.
Bruce Momjian [Wed, 30 Mar 2011 21:45:54 +0000 (17:45 -0400)]
Mention pg_upgrade sets autovacuum_freeze_max_age to maximum.

13 years agoExpand comment on how pg_upgrade is turning off autovacuum.
Bruce Momjian [Wed, 30 Mar 2011 21:36:24 +0000 (17:36 -0400)]
Expand comment on how pg_upgrade is turning off autovacuum.

13 years agoAttempt to unbreak windows builds broken by commit 754baa2.
Andrew Dunstan [Wed, 30 Mar 2011 20:43:31 +0000 (16:43 -0400)]
Attempt to unbreak windows builds broken by commit 754baa2.

13 years agoCheck that we've reached end-of-backup also when we're not performing
Heikki Linnakangas [Wed, 30 Mar 2011 07:36:58 +0000 (10:36 +0300)]
Check that we've reached end-of-backup also when we're not performing
archive recovery.

It's possible to restore an online backup without recovery.conf, by simply
copying all the necessary WAL files to pg_xlog. "pg_basebackup -x" does that
too. That's the use case where this cross-check is useful.

Backpatch to 9.0. We used to do this in earlier versins, but in 9.0 the code
was inadvertently changed so that the check is only performed after archive
recovery.

Fujii Masao.

13 years agoAutomatically terminate replication connections that are idle for more
Heikki Linnakangas [Wed, 30 Mar 2011 07:10:32 +0000 (10:10 +0300)]
Automatically terminate replication connections that are idle for more
than replication_timeout (a new GUC) milliseconds. The TCP timeout is often
too long, you want the master to notice a dead connection much sooner.
People complained about that in 9.0 too, but with synchronous replication
it's even more important to notice dead connections promptly.

Fujii Masao and Heikki Linnakangas

13 years agoAdjust error message, now that we expect other message types than connection
Heikki Linnakangas [Wed, 30 Mar 2011 05:54:28 +0000 (08:54 +0300)]
Adjust error message, now that we expect other message types than connection
close at this point. Fix PQsetnonblocking() comment.

Fujii Masao

13 years agoUpdate SQL features list
Peter Eisentraut [Tue, 29 Mar 2011 20:23:50 +0000 (23:23 +0300)]
Update SQL features list

Feature F692 "Extended collation support" is now also supported.  This
refers to allowing the COLLATE clause anywhere in a column or domain
definition instead of just directly after the type.

Also correct the name of the feature in accordance with the latest SQL
standard.

13 years agoIn pg_upgrade, add C comment about how autovacuum is disabled.
Bruce Momjian [Tue, 29 Mar 2011 15:11:12 +0000 (11:11 -0400)]
In pg_upgrade, add C comment about how autovacuum is disabled.

13 years agoAdd maintainer-check target
Peter Eisentraut [Mon, 28 Mar 2011 19:53:55 +0000 (22:53 +0300)]
Add maintainer-check target

This can do various source code checks that are not appropriate for
either the build or the regression tests.  Currently: duplicate_oids,
SGML syntax and tabs check, NLS syntax check.

13 years agoMake duplicate_oids return nonzero exit status if duplicates were found
Peter Eisentraut [Mon, 28 Mar 2011 19:52:23 +0000 (22:52 +0300)]
Make duplicate_oids return nonzero exit status if duplicates were found

Automatic detection of errors is easier that way.

13 years agoPrevent a rowtype from being included in itself.
Tom Lane [Mon, 28 Mar 2011 19:44:54 +0000 (15:44 -0400)]
Prevent a rowtype from being included in itself.

Eventually we might be able to allow that, but it's not clear how many
places need to be fixed to prevent infinite recursion when there's a direct
or indirect inclusion of a rowtype in itself.  One such place is
CheckAttributeType(), which will recurse to stack overflow in cases such as
those exhibited in bug #5950 from Alex Perepelica.  If we were sure it was
the only such place, we could easily modify the code added by this patch to
stop the recursion without a complaint ... but it probably isn't the only
such place.  Hence, throw error until such time as someone is excited
enough about this type of usage to put work into making it safe.

Back-patch as far as 8.3.  8.2 doesn't have the recursive call in
CheckAttributeType in the first place, so I see no need to add code there
in the absence of clear evidence of a problem elsewhere.

13 years agoAdd 9.1 release note link for synchronous replication.
Bruce Momjian [Mon, 28 Mar 2011 18:50:08 +0000 (14:50 -0400)]
Add 9.1 release note link for synchronous replication.

We already had links to the GUC variables that control it.

13 years agoMark up release notes using <link>. REL9_1_ALPHA5
Robert Haas [Mon, 28 Mar 2011 13:42:09 +0000 (09:42 -0400)]
Mark up release notes using <link>.

Unlike <xref>, this actually works.

13 years agoAdd missing #include
Alvaro Herrera [Sat, 26 Mar 2011 03:09:17 +0000 (00:09 -0300)]
Add missing #include

13 years agoGet rid of links that don't work when building HISTORY.
Tom Lane [Mon, 28 Mar 2011 13:34:56 +0000 (09:34 -0400)]
Get rid of links that don't work when building HISTORY.

13 years agoTypo fix in SSI docs.
Robert Haas [Mon, 28 Mar 2011 01:35:15 +0000 (21:35 -0400)]
Typo fix in SSI docs.

Kevin Grittner

13 years agoCorrect "characters" to "bytes" in createdb docs.
Robert Haas [Mon, 28 Mar 2011 01:28:15 +0000 (21:28 -0400)]
Correct "characters" to "bytes" in createdb docs.

Susanne Ebrecht

13 years agofix up a couple non-prototypes of the form foo() to be foo(void) -- found using ...
Greg Stark [Sun, 27 Mar 2011 20:31:41 +0000 (21:31 +0100)]
fix up a couple non-prototypes of the form foo() to be foo(void) -- found using -Wstrict-prototypes

13 years agoFix check_exclusion_constraint() to insert correct collations in ScanKeys.
Tom Lane [Sun, 27 Mar 2011 17:29:52 +0000 (13:29 -0400)]
Fix check_exclusion_constraint() to insert correct collations in ScanKeys.

13 years agoFix plpgsql to release SPI plans when a function or DO block is freed.
Tom Lane [Sun, 27 Mar 2011 16:51:04 +0000 (12:51 -0400)]
Fix plpgsql to release SPI plans when a function or DO block is freed.

This fixes the gripe I made a few months ago about DO blocks getting
slower with repeated use.  At least, it fixes it for the case where
the DO block isn't aborted by an error.  We could try running
plpgsql_free_function_memory() even during error exit, but that seems
a bit scary since it makes a lot of presumptions about the data
structures being in good shape.  It's probably reasonable to assume
that repeated failures of DO blocks isn't a performance-critical case.

13 years agoRemove disclaimer stating that fsync=off slows down sync rep.
Robert Haas [Sun, 27 Mar 2011 01:18:53 +0000 (21:18 -0400)]
Remove disclaimer stating that fsync=off slows down sync rep.

The underlying problem that caused this phenomenon was fixed by commit
92f4786fa9b730fd12cbfe973eb96addc6e98924.

13 years agoUpdate release notes for latest commits.
Robert Haas [Sun, 27 Mar 2011 01:11:15 +0000 (21:11 -0400)]
Update release notes for latest commits.

In addition, correct the entry for pg_object_description, and some other
minor cleanup.

13 years agoClean up cruft around collation initialization for tupdescs and scankeys.
Tom Lane [Sat, 26 Mar 2011 22:28:40 +0000 (18:28 -0400)]
Clean up cruft around collation initialization for tupdescs and scankeys.

I found actual bugs in GiST and plpgsql; the rest of this is cosmetic
but meant to decrease the odds of future bugs of omission.

13 years agoMore collations cleanup, from trawling for missed collation assignments.
Tom Lane [Sat, 26 Mar 2011 20:35:25 +0000 (16:35 -0400)]
More collations cleanup, from trawling for missed collation assignments.

Mostly cosmetic, though I did find that generateClonedIndexStmt failed
to clone the index's collations.

13 years agoClean up a few failures to set collation fields in expression nodes.
Tom Lane [Sat, 26 Mar 2011 18:25:48 +0000 (14:25 -0400)]
Clean up a few failures to set collation fields in expression nodes.

I'm not sure these have any non-cosmetic implications, but I'm not sure
they don't, either.  In particular, ensure the CaseTestExpr generated
by transformAssignmentIndirection to represent the base target column
carries the correct collation, because parse_collate.c won't fix that.
Tweak lsyscache.c API so that we can get the appropriate collation
without an extra syscache lookup.

13 years agoAdditional test for each commit in sync rep path to plug minute
Simon Riggs [Sat, 26 Mar 2011 10:09:37 +0000 (10:09 +0000)]
Additional test for each commit in sync rep path to plug minute
possibility of race condition that would effect performance only.
Requested by Robert Haas. Re-arrange related comments.

13 years agoPass collation to makeConst() instead of looking it up internally.
Tom Lane [Sat, 26 Mar 2011 00:10:42 +0000 (20:10 -0400)]
Pass collation to makeConst() instead of looking it up internally.

In nearly all cases, the caller already knows the correct collation, and
in a number of places, the value the caller has handy is more correct than
the default for the type would be.  (In particular, this patch makes it
significantly less likely that eval_const_expressions will result in
changing the exposed collation of an expression.)  So an internal lookup
is both expensive and wrong.

13 years agoFix failure to propagate collation in negate_clause().
Tom Lane [Fri, 25 Mar 2011 22:44:47 +0000 (18:44 -0400)]
Fix failure to propagate collation in negate_clause().

Turns out it was this, and not so much plpgsql, that was at fault in Stefan
Huehner's collation-error-in-a-trigger bug report of a couple weeks ago.

13 years agoDocument collation handling in SQL and plpgsql functions.
Tom Lane [Fri, 25 Mar 2011 22:21:25 +0000 (18:21 -0400)]
Document collation handling in SQL and plpgsql functions.

This is pretty minimal but covers the bare facts.

13 years agoFix collation handling in plpgsql functions.
Tom Lane [Fri, 25 Mar 2011 19:06:36 +0000 (15:06 -0400)]
Fix collation handling in plpgsql functions.

Make plpgsql treat the input collation as a polymorphism variable, so
that we cache separate plans for each input collation that's used in a
particular session, as per recent discussion.  Propagate the input
collation to all collatable input parameters.

I chose to also propagate the input collation to all declared variables of
collatable types, which is a bit more debatable but seems to be necessary
for non-astonishing behavior.  (Copying a parameter into a separate local
variable shouldn't result in a change of behavior, for example.)  There is
enough infrastructure here to support declaring a collation for each local
variable to override that default, but I thought we should wait to see what
the field demand is before adding such a feature.

In passing, remove exec_get_rec_fieldtype(), which wasn't used anywhere.

Documentation patch to follow.

13 years agoRemove alpha release notes.
Robert Haas [Fri, 25 Mar 2011 15:52:11 +0000 (11:52 -0400)]
Remove alpha release notes.

Temporarily move some of the alpha release note disclaimers into the regular
release notes, for the sake of alpha5.

13 years agoMake walreceiver send a reply after receiving data but before flushing it.
Robert Haas [Fri, 25 Mar 2011 15:23:39 +0000 (11:23 -0400)]
Make walreceiver send a reply after receiving data but before flushing it.

It originally worked this way, but was changed by commit
a8a8a3e0965201df88bdfdff08f50e5c06c552b7, since which time it's been impossible
for walreceiver to ever send a reply with write_location and flush_location
set to different values.

13 years agoFix broken markup, and remove tabs
Alvaro Herrera [Fri, 25 Mar 2011 15:20:14 +0000 (12:20 -0300)]
Fix broken markup, and remove tabs

13 years agoDocumented some ecpg command line options that were missing:
Michael Meskes [Thu, 24 Mar 2011 21:18:11 +0000 (22:18 +0100)]
Documented some ecpg command line options that were missing:

-r no_indicator
-r prepare
-r questionsmarks

13 years agoFix handling of collation in SQL-language functions.
Tom Lane [Fri, 25 Mar 2011 00:30:14 +0000 (20:30 -0400)]
Fix handling of collation in SQL-language functions.

Ensure that parameter symbols receive collation from the function's
resolved input collation, and fix inlining to behave properly.

BTW, this commit lays about 90% of the infrastructure needed to support
use of argument names in SQL functions.  Parsing of parameters is now
done via the parser-hook infrastructure ... we'd just need to supply
a column-ref hook ...

13 years agoAdd post-creation hook for extensions, consistent with other object types.
Robert Haas [Thu, 24 Mar 2011 22:44:49 +0000 (18:44 -0400)]
Add post-creation hook for extensions, consistent with other object types.

KaiGai Kohei

13 years agoEdits to 9.1 release notes.
Robert Haas [Thu, 24 Mar 2011 20:57:12 +0000 (16:57 -0400)]
Edits to 9.1 release notes.

Add some new items and some additional details to existing items, mostly
by cribbing from the 9.1alpha notes.  Some additional clarifications and
corrections elsewhere, and a few typo fixes.

13 years agoClean up handling of COLLATE clauses in index column definitions.
Tom Lane [Thu, 24 Mar 2011 19:29:52 +0000 (15:29 -0400)]
Clean up handling of COLLATE clauses in index column definitions.

Ensure that COLLATE at the top level of an index expression is treated the
same as a grammatically separate COLLATE.  Fix bogus reverse-parsing logic
in pg_get_indexdef.

13 years agoImprove user-defined-aggregates documentation.
Tom Lane [Wed, 23 Mar 2011 20:56:55 +0000 (16:56 -0400)]
Improve user-defined-aggregates documentation.

On closer inspection, that two-element initcond value seems to have been
a little white lie to avoid explaining the full behavior of float8_accum.
But if people are going to expect the examples to be exactly correct,
I suppose we'd better explain.  Per comment from Thom Brown.

13 years agoMinor changes to recovery pause behaviour.
Simon Riggs [Wed, 23 Mar 2011 19:35:53 +0000 (19:35 +0000)]
Minor changes to recovery pause behaviour.
Change location LOG message so it works each time we pause, not
just for final pause.
Ensure that we pause only if we are in Hot Standby and can connect
to allow us to run resume function. This change supercedes the
code to override parameter recoveryPauseAtTarget to false if not
attempting to enter Hot Standby, which is now removed.

13 years agoFix ancient typo in user-defined-aggregates documentation.
Tom Lane [Wed, 23 Mar 2011 16:33:14 +0000 (12:33 -0400)]
Fix ancient typo in user-defined-aggregates documentation.

The description of the initcond value for the built-in avg(float8)
aggregate has been wrong since it was written.  Noted by Disc Magnet.

13 years agoRemove synchronous_replication/max_wal_senders cross-check.
Robert Haas [Wed, 23 Mar 2011 15:44:27 +0000 (11:44 -0400)]
Remove synchronous_replication/max_wal_senders cross-check.

This is no longer necessary, and might result in a situation where the
configuration file is reloaded (and everything seems OK) but a subsequent
restart of the database fails.

Per an observation from Fujii Masao.

13 years agoPrevent intermittent hang in recovery from bgwriter interaction.
Simon Riggs [Wed, 23 Mar 2011 13:30:05 +0000 (13:30 +0000)]
Prevent intermittent hang in recovery from bgwriter interaction.
Startup process waited for cleanup lock but when hot_standby = off
the pid was not registered, so that the bgwriter would not wake
the waiting process as intended.

13 years agoCosmetic capitalization fix
Peter Eisentraut [Tue, 22 Mar 2011 15:44:38 +0000 (17:44 +0200)]
Cosmetic capitalization fix

13 years agoMake FKs valid at creation when added as column constraints.
Simon Riggs [Tue, 22 Mar 2011 23:10:35 +0000 (23:10 +0000)]
Make FKs valid at creation when added as column constraints.

Bug report from Alvaro Herrera

13 years agoMake initdb ignore locales for client-only encodings.
Tom Lane [Tue, 22 Mar 2011 21:20:50 +0000 (17:20 -0400)]
Make initdb ignore locales for client-only encodings.

While putting such entries into pg_collation is harmless (since backends
will ignore entries that don't match the database encoding), it's also
useless.

13 years agoImprove reporting of run-time-detected indeterminate-collation errors.
Tom Lane [Tue, 22 Mar 2011 20:55:32 +0000 (16:55 -0400)]
Improve reporting of run-time-detected indeterminate-collation errors.

pg_newlocale_from_collation does not have enough context to give an error
message that's even a little bit useful, so move the responsibility for
complaining up to its callers.  Also, reword ERRCODE_INDETERMINATE_COLLATION
error messages in a less jargony, more message-style-guide-compliant
fashion.

13 years agoThrow error for indeterminate collation of an ORDER/GROUP/DISTINCT target.
Tom Lane [Tue, 22 Mar 2011 19:58:03 +0000 (15:58 -0400)]
Throw error for indeterminate collation of an ORDER/GROUP/DISTINCT target.

This restores a parse error that was thrown (though only in the ORDER BY
case) by the original collation patch.  I had removed it in my recent
revisions because it was thrown at a place where collations now haven't
been computed yet; but I thought of another way to handle it.

Throwing the error at parse time, rather than leaving it to be done at
runtime, is good because a syntax error pointer is helpful for localizing
the problem.  We can reasonably assume that the comparison function for a
collatable datatype will complain if it doesn't have a collation to use.
Now the planner might choose to implement GROUP or DISTINCT via hashing,
in which case no runtime error would actually occur, but it seems better
to throw error consistently rather than let the error depend on what the
planner chooses to do.  Another possible objection is that the user might
specify a nondefault sort operator that doesn't care about collation
... but that's surely an uncommon usage, and it wouldn't hurt him to throw
in a COLLATE clause anyway.  This change also makes the ORDER BY/GROUP
BY/DISTINCT case more consistent with the UNION/INTERSECT/EXCEPT case,
which was already coded to throw this error even though the same objections
could be raised there.

13 years agoAvoid potential deadlock in InitCatCachePhase2().
Tom Lane [Tue, 22 Mar 2011 17:00:24 +0000 (13:00 -0400)]
Avoid potential deadlock in InitCatCachePhase2().

Opening a catcache's index could require reading from that cache's own
catalog, which of course would acquire AccessShareLock on the catalog.
So the original coding here risks locking index before heap, which could
deadlock against another backend trying to get exclusive locks in the
normal order.  Because InitCatCachePhase2 is only called when a backend
has to start up without a relcache init file, the deadlock was seldom seen
in the field.  (And by the same token, there's no need to worry about any
performance disadvantage; so not much point in trying to distinguish
exactly which catalogs have the risk.)

Bug report, diagnosis, and patch by Nikhil Sontakke.  Additional commentary
by me.  Back-patch to all supported branches.

13 years agoUpdate docs to say you need fsync to make sync rep work fast.
Simon Riggs [Tue, 22 Mar 2011 16:23:54 +0000 (16:23 +0000)]
Update docs to say you need fsync to make sync rep work fast.

13 years agoReimplement planner's handling of MIN/MAX aggregate optimization (again).
Tom Lane [Tue, 22 Mar 2011 04:34:31 +0000 (00:34 -0400)]
Reimplement planner's handling of MIN/MAX aggregate optimization (again).

Instead of playing cute games with pathkeys, just build a direct
representation of the intended sub-select, and feed it through
query_planner to get a Path for the index access.  This is a bit slower
than 9.1's previous method, since we'll duplicate most of the overhead of
query_planner; but since the whole optimization only applies to rather
simple single-table queries, that probably won't be much of a problem in
practice.  The advantage is that we get to do the right thing when there's
a partial index that needs the implicit IS NOT NULL clause to be usable.
Also, although this makes planagg.c be a bit more closely tied to the
ordering of operations in grouping_planner, we can get rid of some coupling
to lower-level parts of the planner.  Per complaint from Marti Raudsepp.

13 years agoWhen two base backups are started at the same time with pg_basebackup,
Heikki Linnakangas [Mon, 21 Mar 2011 09:25:25 +0000 (11:25 +0200)]
When two base backups are started at the same time with pg_basebackup,
ensure that they use different checkpoints as the starting point. We use
the checkpoint redo location as a unique identifier for the base backup in
the end-of-backup record, and in the backup history file name.

Bug spotted by Fujii Masao.

13 years agoMarkup and wording improvements for 9.1 release notes.
Bruce Momjian [Mon, 21 Mar 2011 03:17:21 +0000 (23:17 -0400)]
Markup and wording improvements for 9.1 release notes.

13 years agoAnother 9.1 release note typo fix.
Bruce Momjian [Sun, 20 Mar 2011 23:36:44 +0000 (19:36 -0400)]
Another 9.1 release note typo fix.

13 years agoFix snapshot isolation level typo in 9.1 release notes.
Bruce Momjian [Sun, 20 Mar 2011 23:35:19 +0000 (19:35 -0400)]
Fix snapshot isolation level typo in 9.1 release notes.

13 years agoReorder some 9.1 release item documentation entries, fix some awkward wording.
Bruce Momjian [Sun, 20 Mar 2011 21:43:04 +0000 (17:43 -0400)]
Reorder some 9.1 release item documentation entries, fix some awkward wording.