Stamp 10.13.
commit : a411361705cdf0c0d63d1de231d7ea33a030b4f9
author : Tom Lane <[email protected]>
date : Mon, 11 May 2020 17:12:38 -0400
committer: Tom Lane <[email protected]>
date : Mon, 11 May 2020 17:12:38 -0400
M configure
M configure.in
M doc/bug.template
M src/include/pg_config.h.win32
M src/interfaces/libpq/libpq.rc.in
M src/port/win32ver.rc
Translation updates
commit : ce0bbdda3e3c2101efbb0a8915e9d057606059dc
author : Peter Eisentraut <[email protected]>
date : Mon, 11 May 2020 13:26:52 +0200
committer: Peter Eisentraut <[email protected]>
date : Mon, 11 May 2020 13:26:52 +0200
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 7176d722099b6a56e0aec6f32a195ff77babe844
M src/backend/po/de.po
M src/backend/po/es.po
M src/backend/po/ru.po
M src/backend/po/sv.po
M src/bin/pg_dump/po/de.po
M src/bin/pg_dump/po/fr.po
M src/bin/pg_dump/po/ru.po
M src/bin/pg_dump/po/sv.po
M src/bin/pg_upgrade/po/de.po
M src/bin/pg_upgrade/po/fr.po
M src/bin/pg_upgrade/po/ru.po
M src/bin/pg_upgrade/po/sv.po
M src/bin/psql/po/ru.po
M src/bin/psql/po/sv.po
M src/bin/scripts/po/de.po
M src/bin/scripts/po/fr.po
M src/bin/scripts/po/ru.po
M src/bin/scripts/po/sv.po
M src/pl/plpgsql/src/po/ru.po
Release notes for 12.3, 11.8, 10.13, 9.6.18, 9.5.22.
commit : 65b58d98916b55697230c53d053cb2a3defb7d7a
author : Tom Lane <[email protected]>
date : Sun, 10 May 2020 15:06:00 -0400
committer: Tom Lane <[email protected]>
date : Sun, 10 May 2020 15:06:00 -0400
M doc/src/sgml/release-10.sgml
Prevent archive recovery from scanning non-existent WAL files.
commit : 660f1fc40d7a09e9486284d0858168703b9adf11
author : Fujii Masao <[email protected]>
date : Wed, 8 Apr 2020 00:49:29 +0900
committer: Fujii Masao <[email protected]>
date : Wed, 8 Apr 2020 00:49:29 +0900
Previously when there were multiple timelines listed in the history file
of the recovery target timeline, archive recovery searched all of them,
starting from the newest timeline to the oldest one, to find the segment
to read. That is, archive recovery had to continuously fail scanning
the segment until it reached the timeline that the segment belonged to.
These scans for non-existent segment could be harmful on the recovery
performance especially when archival area was located on the remote
storage and each scan could take a long time.
To address the issue, this commit changes archive recovery so that
it skips scanning the timeline that the segment to read doesn't belong to.
Per discussion, back-patch to all supported versions.
Author: Kyotaro Horiguchi, tweaked a bit by Fujii Masao
Reviewed-by: David Steele, Pavel Suderevsky, Grigory Smolkin
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/transam/xlog.c
pg_restore: Provide file name with one failure message
commit : f8635747ee9c07844819075675b2c5c07a7e016e
author : Alvaro Herrera <[email protected]>
date : Fri, 8 May 2020 19:38:46 -0400
committer: Alvaro Herrera <[email protected]>
date : Fri, 8 May 2020 19:38:46 -0400
Almost all error messages already include file name where relevant, but
this one had been overlooked. Repair.
Backpatch to 9.5.
Author: Euler Taveira <[email protected]>
Discussion: https://postgr.es/m/CAH503wA_VOrcKL_43p9atRejCDYmOZ8MzfK9S6TJrQqBqNeAXA@mail.gmail.com
Reviewed-by: Álvaro Herrera <[email protected]>
M src/bin/pg_dump/pg_backup_directory.c
Fix inconsistency in pg_buffercache docs.
commit : b50712ba7530361a345ae01e5d929b3e6f46a0dc
author : Amit Kapila <[email protected]>
date : Fri, 8 May 2020 09:07:14 +0530
committer: Amit Kapila <[email protected]>
date : Fri, 8 May 2020 09:07:14 +0530
Commit 6e654546fb avoids locking bufmgr partitions to make pg_buffercache
less disruptive on production systems but forgot to update the docs.
Reported-by: Sawada Masahiko
Author: Sawada Masahiko
Reviewed-by: Amit Kapila
Backpatch-through: 10
Discussion: https://postgr.es/m/CA+fd4k6sD8oeP1qJbFAor=rCpYckU9DsywHiYx3x5Hz5Z8Ua_w@mail.gmail.com
M doc/src/sgml/pgbuffercache.sgml
Report missing wait event for timeline history file.
commit : 3a48740e898c7586d119bd821572265418ad7b43
author : Fujii Masao <[email protected]>
date : Fri, 8 May 2020 10:36:40 +0900
committer: Fujii Masao <[email protected]>
date : Fri, 8 May 2020 10:36:40 +0900
TimelineHistoryRead and TimelineHistoryWrite wait events are reported
during waiting for a read and write of a timeline history file, respectively.
However, previously, TimelineHistoryRead wait event was not reported
while readTimeLineHistory() was reading a timeline history file. Also
TimelineHistoryWrite was not reported while writeTimeLineHistory() was
writing one line with the details of the timeline split, at the end.
This commit fixes these issues.
Back-patch to v10 where wait events for a timeline history file was added.
Author: Masahiro Ikeda
Reviewed-by: Michael Paquier, Fujii Masao
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/transam/timeline.c
Fix YA text phrase search bug.
commit : 26cf16a9336101504c17e4bf7f6b6208c71bfa47
author : Tom Lane <[email protected]>
date : Thu, 7 May 2020 15:59:52 -0400
committer: Tom Lane <[email protected]>
date : Thu, 7 May 2020 15:59:52 -0400
checkcondition_str() failed to report multiple matches for a prefix
pattern correctly: it would dutifully merge the match positions, but
then after exiting that loop, if the last prefix-matching word had
had no suitable positions, it would report there were no matches.
The upshot would be failing to recognize a match that the query
should match.
It looks like you need all of these conditions to see the bug:
* a phrase search (else we don't ask for match position details)
* a prefix search item (else we don't get to this code)
* a weight restriction (else checkclass_str won't fail)
Noted while investigating a problem report from Pavel Borisov,
though this is distinct from the issue he was on about.
Back-patch to 9.6 where phrase search was added.
M src/backend/utils/adt/tsvector_op.c
M src/test/regress/expected/tstypes.out
M src/test/regress/sql/tstypes.sql
Heed lock protocol in DROP OWNED BY
commit : 4d21263fffd2d5aebeb2e52dbaaa31d3ba16d51e
author : Alvaro Herrera <[email protected]>
date : Wed, 6 May 2020 12:29:41 -0400
committer: Alvaro Herrera <[email protected]>
date : Wed, 6 May 2020 12:29:41 -0400
We were acquiring object locks then deleting objects one by one, instead
of acquiring all object locks first, ignoring those that did not exist,
and then deleting all objects together. The latter is the correct
protocol to use, and what this commits changes to code to do. Failing
to follow that leads to "cache lookup failed for relation XYZ" error
reports when DROP OWNED runs concurrently with other DDL -- for example,
a session termination that removes some temp tables.
Author: Álvaro Herrera
Reported-by: Mithun Chicklore Yogendra (Mithun CY)
Reviewed-by: Ahsan Hadi, Tom Lane
Discussion: https://postgr.es/m/CADq3xVZTbzK4ZLKq+dn_vB4QafXXbmMgDP3trY-GuLnib2Ai1w@mail.gmail.com
M src/backend/catalog/dependency.c
M src/backend/catalog/pg_shdepend.c
M src/backend/commands/subscriptioncmds.c
M src/include/catalog/dependency.h
Handle spaces for Python install location in MSVC scripts
commit : 307ed98b01394488b9bd1dfa7a851a219c7e27ab
author : Michael Paquier <[email protected]>
date : Wed, 6 May 2020 21:08:31 +0900
committer: Michael Paquier <[email protected]>
date : Wed, 6 May 2020 21:08:31 +0900
Attempting to use an installation path of Python that includes spaces
caused the MSVC builds to fail. This fixes the issue by using the same
quoting method as ad7595b for OpenSSL.
Author: Victor Wagner
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M src/tools/msvc/Mkvcbuild.pm
Get rid of trailing semicolons in C macro definitions.
commit : 49718aa9ee5ee9a667cdd50e659687490716c94a
author : Tom Lane <[email protected]>
date : Fri, 1 May 2020 17:28:01 -0400
committer: Tom Lane <[email protected]>
date : Fri, 1 May 2020 17:28:01 -0400
Writing a trailing semicolon in a macro is almost never the right thing,
because you almost always want to write a semicolon after each macro
call instead. (Even if there was some reason to prefer not to, pgindent
would probably make a hash of code formatted that way; so within PG the
rule should basically be "don't do it".) Thus, if we have a semi inside
the macro, the compiler sees "something;;". Much of the time the extra
empty statement is harmless, but it could lead to mysterious syntax
errors at call sites. In perhaps an overabundance of neatnik-ism, let's
run around and get rid of the excess semicolons whereever possible.
The only thing worse than a mysterious syntax error is a mysterious
syntax error that only happens in the back branches; therefore,
backpatch these changes where relevant, which is most of them because
most of these mistakes are old. (The lack of reported problems shows
that this is largely a hypothetical issue, but still, it could bite
us in some future patch.)
John Naylor and Tom Lane
Discussion: https://postgr.es/m/CACPNZCs0qWTqJ2QUSGJ07B7uvAvzMb-KbG2q+oo+J3tsWN5cqw@mail.gmail.com
M contrib/btree_gist/btree_ts.c
M contrib/btree_gist/btree_utils_num.h
M contrib/pg_trgm/trgm.h
M contrib/pgcrypto/crypt-blowfish.c
M src/backend/nodes/readfuncs.c
M src/backend/utils/adt/formatting.c
M src/backend/utils/sort/gen_qsort_tuple.pl
M src/bin/pg_dump/pg_backup_archiver.h
M src/include/access/nbtree.h
M src/port/qsort.c
M src/port/qsort_arg.c
Fix full text search to handle NOT above a phrase search correctly.
commit : 072a863275e93147cf5987b915815e041322b8be
author : Tom Lane <[email protected]>
date : Mon, 27 Apr 2020 12:21:04 -0400
committer: Tom Lane <[email protected]>
date : Mon, 27 Apr 2020 12:21:04 -0400
Queries such as '!(foo<->bar)' failed to find matching rows when
implemented as a GiST or GIN index search. That's because of
failing to handle phrase searches as tri-valued when considering
a query without any position information for the target tsvector.
We can only say that the phrase operator might match, not that it
does match; and therefore its NOT also might match. The previous
coding incorrectly inverted the approximate phrase result to
decide that there was certainly no match.
To fix, we need to make TS_phrase_execute return a real ternary result,
and then bubble that up accurately in TS_execute. As long as we have
to do that anyway, we can simplify the baroque things TS_phrase_execute
was doing internally to manage tri-valued searching with only a bool
as explicit result.
For now, I left the externally-visible result of TS_execute as a plain
bool. There do not appear to be any outside callers that need to
distinguish a three-way result, given that they passed in a flag
saying what to do in the absence of position data. This might need
to change someday, but we wouldn't want to back-patch such a change.
Although tsginidx.c has its own TS_execute_ternary implementation for
use at upper index levels, that sadly managed to get this case wrong
as well :-(. Fixing it is a lot easier fortunately.
Per bug #16388 from Charles Offenbacher. Back-patch to 9.6 where
phrase search was introduced.
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/tsginidx.c
M src/backend/utils/adt/tsvector_op.c
M src/test/regress/data/tsearch.data
M src/test/regress/expected/tsearch.out
M src/test/regress/expected/tstypes.out
M src/test/regress/sql/tsearch.sql
M src/test/regress/sql/tstypes.sql
Fix error case for CREATE ROLE ... IN ROLE.
commit : 287f6d2d96ddca279518348f88667d9ef10028b5
author : Andrew Gierth <[email protected]>
date : Sat, 25 Apr 2020 05:10:13 +0100
committer: Andrew Gierth <[email protected]>
date : Sat, 25 Apr 2020 05:10:13 +0100
CreateRole() was passing a Value node, not a RoleSpec node, for the
newly-created role name when adding the role as a member of existing
roles for the IN ROLE syntax.
This mistake went unnoticed because the node in question is used only
for error messages and is not accessed on non-error paths.
In older pg versions (such as 9.5 where this was found), this results
in an "unexpected node type" error in place of the real error. That
node type check was removed at some point, after which the code would
accidentally fail to fail on 64-bit platforms (on which accessing the
Value node as if it were a RoleSpec would be mostly harmless) or give
an "unexpected role type" error on 32-bit platforms.
Fix the code to pass the correct node type, and add an lfirst_node
assertion just in case.
Per report on irc from user m1chelangelo.
Backpatch all the way, because this error has been around for a long
time.
M src/backend/commands/user.c
Update Windows timezone name list to include currently-known zones.
commit : 40d4bc5acd0aeaf4fbbd4716a22f998b2580f42b
author : Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 17:53:23 -0400
committer: Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 17:53:23 -0400
Thanks to Juan José Santamaría Flecha.
Discussion: https://postgr.es/m/[email protected]
M src/bin/initdb/findtimezone.c
M src/tools/win32tzlist.pl
Improve placement of "display name" comment in win32_tzmap[] entries.
commit : 4985b3b84918025f65b268df08d00c214411ebff
author : Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 17:21:44 -0400
committer: Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 17:21:44 -0400
Sticking this comment at the end of the last line was a bad idea: it's
not particularly readable, and it tempts pgindent to mess with line
breaks within the comment, which in turn reveals that win32tzlist.pl's
clean_displayname() does the wrong thing to clean up such line breaks.
While that's not hard to fix, there's basically no excuse for this
arrangement to begin with, especially since it makes the table layout
needlessly vary across back branches with different pgindent rules.
Let's just put the comment inside the braces, instead.
This commit just moves and reformats the comments, and updates
win32tzlist.pl to match; there's no actual data change.
Per odd-looking results from Juan José Santamaría Flecha.
Back-patch, since the point is to make win32_tzmap[] look the
same in all supported branches again.
Discussion: https://postgr.es/m/[email protected]
M src/bin/initdb/findtimezone.c
M src/tools/win32tzlist.pl
Update time zone data files to tzdata release 2020a.
commit : 898921a18959a1c2e5a960ae13642462d7a74393
author : Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 10:54:47 -0400
committer: Tom Lane <[email protected]>
date : Fri, 24 Apr 2020 10:54:47 -0400
DST law changes in Morocco and the Canadian Yukon.
Historical corrections for Shanghai.
The America/Godthab zone is renamed to America/Nuuk to reflect
current English usage; however, the old name remains available as a
compatibility link.
M src/timezone/data/tzdata.zi
Remove some unstable parts from new TAP test for archive status check
commit : 3d9cae5adb1668212c9816777849c7577dcaf346
author : Michael Paquier <[email protected]>
date : Fri, 24 Apr 2020 11:34:06 +0900
committer: Michael Paquier <[email protected]>
date : Fri, 24 Apr 2020 11:34:06 +0900
The test is proving to have timing issues when looking at archive status
files on standbys after crash recovery, while other parts of the test
rely on pg_stat_archiver as a wait point to make sure that a given state
of the archiving is reached. The coverage is not heavily impacted by
the removal those extra tests.
Per reports from several buildfarm animals, like crake, piculet,
culicidae and francolin.
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M src/test/recovery/t/020_archive_status.pl
Fix handling of WAL segments ready to be archived during crash recovery
commit : 02657c42199cd992eedc99a9cbc1f2c43ad5b208
author : Michael Paquier <[email protected]>
date : Fri, 24 Apr 2020 08:48:45 +0900
committer: Michael Paquier <[email protected]>
date : Fri, 24 Apr 2020 08:48:45 +0900
78ea8b5 has fixed an issue related to the recycling of WAL segments on
standbys depending on archive_mode. However, it has introduced a
regression with the handling of WAL segments ready to be archived during
crash recovery, causing those files to be recycled without getting
archived.
This commit fixes the regression by tracking in shared memory if a live
cluster is either in crash recovery or archive recovery as the handling
of WAL segments ready to be archived is different in both cases (those
WAL segments should not be removed during crash recovery), and by using
this new shared memory state to decide if a segment can be recycled or
not. Previously, it was not possible to know if a cluster was in crash
recovery or archive recovery as the shared state was able to track only
if recovery was happening or not, leading to the problem.
A set of TAP tests is added to close the gap here, making sure that WAL
segments ready to be archived are correctly handled when a cluster is in
archive or crash recovery with archive_mode set to "on" or "always", for
both standby and primary.
Reported-by: Benoît Lobréau
Author: Jehan-Guillaume de Rorthais
Reviewed-by: Kyotaro Horiguchi, Fujii Masao, Michael Paquier
Discussion: https://postgr.es/m/20200331172229.40ee00dc@firost
Backpatch-through: 9.5
M src/backend/access/transam/xlog.c
M src/backend/access/transam/xlogarchive.c
M src/include/access/xlog.h
A src/test/recovery/t/020_archive_status.pl
docs: land height is "elevation", not "altitude"
commit : b0b216853883d2384c70fff66cae26b7d54cbc16
author : Bruce Momjian <[email protected]>
date : Wed, 22 Apr 2020 16:23:19 -0400
committer: Bruce Momjian <[email protected]>
date : Wed, 22 Apr 2020 16:23:19 -0400
See https://mapscaping.com/blogs/geo-candy/what-is-the-difference-between-elevation-relief-and-altitude
No patching of regression tests.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/advanced.sgml
M doc/src/sgml/ddl.sgml
Fix memory leak in libpq when using sslmode=verify-full
commit : 1bb0293d844538ee39b14a7965a9ea7e10dcae93
author : Michael Paquier <[email protected]>
date : Wed, 22 Apr 2020 07:27:53 +0900
committer: Michael Paquier <[email protected]>
date : Wed, 22 Apr 2020 07:27:53 +0900
Checking if Subject Alternative Names (SANs) from a certificate match
with the hostname connected to leaked memory after each lookup done.
This is broken since acd08d7 that added support for SANs in SSL
certificates, so backpatch down to 9.5.
Author: Roman Peshkurov
Reviewed-by: Hamid Akhtar, Michael Paquier, David Steele
Discussion: https://postgr.es/m/CALLDf-pZ-E3mjxd5=bnHsDu9zHEOnpgPgdnO84E2RuwMCjjyPw@mail.gmail.com
Backpatch-through: 9.5
M src/interfaces/libpq/fe-secure-openssl.c
Fix possible crash during FATAL exit from reindexing.
commit : e6c17c85ac9e5c6ff2c4feeca913216baeb5afb6
author : Tom Lane <[email protected]>
date : Tue, 21 Apr 2020 15:58:42 -0400
committer: Tom Lane <[email protected]>
date : Tue, 21 Apr 2020 15:58:42 -0400
index.c supposed that it could just use a PG_TRY block to clean up the
state associated with an active REINDEX operation. However, that code
doesn't run if we do a FATAL exit --- for example, due to a SIGTERM
shutdown signal --- while the REINDEX is happening. And that state does
get consulted during catalog accesses, which makes it problematic if we
do any catalog accesses during shutdown --- for example, to clean up any
temp tables created in the session.
If this combination of circumstances occurred, we could find ourselves
trying to access already-freed memory. In debug builds that'd fairly
reliably cause an assertion failure. In production we might often
get away with it, but with some bad luck it could cause a core dump.
Another possible bad outcome is an erroneous conclusion that an
index-to-be-accessed is being reindexed; but it looks like that would
be unlikely to have any consequences worse than failing to drop temp
tables right away. (They'd still get dropped by the next session that
uses that temp schema.)
To fix, get rid of the use of PG_TRY here, and instead hook into
the transaction abort mechanisms to clean up reindex state.
Per bug #16378 from Alexander Lakhin. This has been wrong for a
very long time, so back-patch to all supported branches.
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/transam/xact.c
M src/backend/catalog/index.c
M src/include/catalog/index.h
Fix minor violations of FunctionCallInvoke usage protocol.
commit : 0d0a0e4c253eb0f5220f9fe8296cdeac0daae662
author : Tom Lane <[email protected]>
date : Tue, 21 Apr 2020 14:23:42 -0400
committer: Tom Lane <[email protected]>
date : Tue, 21 Apr 2020 14:23:42 -0400
Working on commit 1c455078b led me to check through FunctionCallInvoke
call sites to see if every one was being honest about (a) making sure
that fcinfo.isnull is initially false, and (b) checking its state after
the call. Sure enough, I found some violations.
The main one is that finalize_partialaggregate re-used serialfn_fcinfo
without resetting isnull, even though it clearly intends to cater for
serialfns that return NULL. There would only be an issue with a
non-strict serialfn, since it's unlikely that a serialfn would return
NULL for non-null input. We have no non-strict serialfns in core, and
there may be none in the wild either, which would account for the lack
of complaints. Still, it's clearly wrong, so back-patch that fix to
9.6 where finalize_partialaggregate was introduced.
Also, arrayfuncs.c and rowtypes.c contained various callers that were
not bothering to check for result nulls. While what's being called is
a comparison or hash function that probably *shouldn't* return null,
that's a lousy excuse for not having any check at all. There are
existing places that just Assert(!fcinfo->isnull) in comparable
situations, so I added that to the places that were calling btree
comparison or hash support functions. In the places calling
boolean-returning equality functions, it's quite cheap to have them
treat isnull as FALSE, so make those places do that. Also remove some
"locfcinfo->isnull = false" assignments that are unnecessary given the
assumption that no previous call returned null. These changes seem like
mostly neatnik-ism or debugging support, so I didn't back-patch.
M src/backend/executor/nodeAgg.c
M src/include/fmgr.h
doc: change SGML markup "figure" to "example"
commit : de56dafeede6e64afac57aaaf5c505ee5de09ca4
author : Bruce Momjian <[email protected]>
date : Mon, 20 Apr 2020 21:41:13 -0400
committer: Bruce Momjian <[email protected]>
date : Mon, 20 Apr 2020 21:41:13 -0400
Reported-by: Jürgen Purtz
Discussion: https://postgr.es/m/[email protected]
Author: Jürgen Purtz
Backpatch-through: 9.5
M doc/src/sgml/func.sgml
Allow pg_read_all_stats to access all stats views again
commit : d0bb66572e3326b40515cbf62ec11b3339bbf914
author : Magnus Hagander <[email protected]>
date : Mon, 20 Apr 2020 12:53:40 +0200
committer: Magnus Hagander <[email protected]>
date : Mon, 20 Apr 2020 12:53:40 +0200
The views pg_stat_progress_* had not gotten the memo that
pg_read_all_stats is supposed to be able to read all statistics. Also
make a pass over all text-returning pg_stat_xyz functions that could
return "insufficient privilege" and make sure they also respect
pg_read_all_status.
Reported-by: Andrey M. Borodin
Reviewed-by: Andrey M. Borodin, Kyotaro Horiguchi
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/pgstatfuncs.c
Fix race conditions in synchronous standby management.
commit : 63ecdaf758c56c183ed76c02e169c9c5504e6693
author : Tom Lane <[email protected]>
date : Sat, 18 Apr 2020 14:02:44 -0400
committer: Tom Lane <[email protected]>
date : Sat, 18 Apr 2020 14:02:44 -0400
We have repeatedly seen the buildfarm reach the Assert(false) in
SyncRepGetSyncStandbysPriority. This apparently is due to failing to
consider the possibility that the sync_standby_priority values in
shared memory might be inconsistent; but they will be whenever only
some of the walsenders have updated their values after a change in
the synchronous_standby_names setting. That function is vastly too
complex for what it does, anyway, so rewriting it seems better than
trying to apply a band-aid fix.
Furthermore, the API of SyncRepGetSyncStandbys is broken by design:
it returns a list of WalSnd array indexes, but there is nothing
guaranteeing that the contents of the WalSnd array remain stable.
Thus, if some walsender exits and then a new walsender process
takes over that WalSnd array slot, a caller might make use of
WAL position data that it should not, potentially leading to
incorrect decisions about whether to release transactions that
are waiting for synchronous commit.
To fix, replace SyncRepGetSyncStandbys with a new function
SyncRepGetCandidateStandbys that copies all the required data
from shared memory while holding the relevant mutexes. If the
associated walsender process then exits, this data is still safe to
make release decisions with, since we know that that much WAL *was*
sent to a valid standby server. This incidentally means that we no
longer need to treat sync_standby_priority as protected by the
SyncRepLock rather than the per-walsender mutex.
SyncRepGetSyncStandbys is no longer used by the core code, so remove
it entirely in HEAD. However, it seems possible that external code is
relying on that function, so do not remove it from the back branches.
Instead, just remove the known-incorrect Assert. When the bug occurs,
the function will return a too-short list, which callers should treat
as meaning there are not enough sync standbys, which seems like a
reasonably safe fallback until the inconsistent state is resolved.
Moreover it's bug-compatible with what has been happening in non-assert
builds. We cannot do anything about the walsender-replacement race
condition without an API/ABI break.
The bogus assertion exists back to 9.6, but 9.6 is sufficiently
different from the later branches that the patch doesn't apply at all.
I chose to just remove the bogus assertion in 9.6, feeling that the
probability of a bad outcome from the walsender-replacement race
condition is too low to justify rewriting the whole patch for 9.6.
Discussion: https://postgr.es/m/[email protected]
M src/backend/replication/syncrep.c
M src/backend/replication/walsender.c
M src/include/replication/syncrep.h
M src/include/replication/walsender_private.h
Use a slightly more liberal regex to detect Visual Studio version
commit : ddac64f2d6fbdf04529a85a05c52728175bf5c17
author : Andrew Dunstan <[email protected]>
date : Fri, 17 Apr 2020 14:55:55 -0400
committer: Andrew Dunstan <[email protected]>
date : Fri, 17 Apr 2020 14:55:55 -0400
Apparently in some language versions of Visual Studio nmake outputs some
material after the version number and before the end of the line. This
has been seen in Chinese versions. Therefore, we no longer demand that
the version string comes at the end of a line.
Per complaint from Cuiping Lin.
Backpatch to all live branches.
M src/tools/msvc/VSObjectFactory.pm
Fix cache reference leak in contrib/sepgsql.
commit : f4a42005613bf279b4c1d203112c0583cbbf498e
author : Tom Lane <[email protected]>
date : Thu, 16 Apr 2020 14:45:54 -0400
committer: Tom Lane <[email protected]>
date : Thu, 16 Apr 2020 14:45:54 -0400
fixup_whole_row_references() did the wrong thing with a dropped column,
resulting in a commit-time warning about a cache reference leak.
I (tgl) added a test case exercising this, but back-patched the test
only as far as v10; the patch didn't apply cleanly to 9.6 and it
didn't seem worth the trouble to adapt it. The bug is pretty old
though, so apply the code change all the way back.
Michael Luo, with cosmetic improvements by me
Discussion: https://postgr.es/m/BYAPR08MB5606D1453D7F50E2AF4D2FD29AD80@BYAPR08MB5606.namprd08.prod.outlook.com
M contrib/sepgsql/dml.c
M contrib/sepgsql/expected/dml.out
M contrib/sepgsql/sql/dml.sql
Fix minor memory leak in pg_dump
commit : e7887fe00db214b141a29f4298c7bb6536292a7e
author : Michael Paquier <[email protected]>
date : Wed, 15 Apr 2020 15:56:52 +0900
committer: Michael Paquier <[email protected]>
date : Wed, 15 Apr 2020 15:56:52 +0900
A query used to read default ACL information from the catalogs did not
free a set of PQExpBuffer.
Oversight in commit e2090d9, so backpatch down to 9.6.
Author: Jie Zhang
Reviewed-by: Sawada Masahiko
Discussion: https://postgr.es/m/05bcbc5857f948efa0b451b85a48ae10@G08CNEXMBPEKD06.g08.fujitsu.local
Backpatch-through: 9.6
M src/bin/pg_dump/pg_dump.c
Repair last commit's new wait_for_catchup() call.
commit : aca51181baf9ec3ddcac6707bf6a6a5014f7543b
author : Noah Misch <[email protected]>
date : Mon, 13 Apr 2020 21:10:06 -0700
committer: Noah Misch <[email protected]>
date : Mon, 13 Apr 2020 21:10:06 -0700
The function had a different API in v10. Per buildfarm.
M src/test/recovery/t/010_logical_decoding_timelines.pl
Add a wait_for_catchup() before immediate stop of a test master.
commit : ab7699e86c161960c44b51d1a7e6d32784cf5299
author : Noah Misch <[email protected]>
date : Mon, 13 Apr 2020 18:47:28 -0700
committer: Noah Misch <[email protected]>
date : Mon, 13 Apr 2020 18:47:28 -0700
Per buildfarm member hoverfly, a slow walsender could make the test
fail. Back-patch to v10, where the test was introduced.
Discussion: https://postgr.es/m/[email protected]
M src/test/recovery/t/010_logical_decoding_timelines.pl
Clear dangling pointer to avoid bogus EXPLAIN printout in a corner case.
commit : 1e6bb6125f33eeb2e6cc00e6af8777bdbe9a3786
author : Tom Lane <[email protected]>
date : Sat, 11 Apr 2020 12:29:06 -0400
committer: Tom Lane <[email protected]>
date : Sat, 11 Apr 2020 12:29:06 -0400
ExecReScanHashJoin will destroy the join's hash table if it expects
that the inner relation will produce different rows on rescan.
Up to now it's not bothered to clear the additional pointer to that
hash table that exists in the child HashState node. However, it's
possible for the query to terminate without building a fresh hash
table (this happens if the outer relation is found to be empty
during the final rescan). So we can end with a dangling pointer
to a deleted hash table. That was harmless originally, but since
9.0 EXPLAIN ANALYZE has used that pointer to print hash table
statistics. In debug builds this reproducibly results in garbage
statistics. In non-debug builds there's frequently no ill effects,
but in principle one could get wrong EXPLAIN ANALYZE output, or
perhaps even a crash if free() has released the hashtable memory
back to the OS.
To fix, just make sure we clear the additional pointer when destroying
the hash table. In problematic cases, EXPLAIN ANALYZE will then print
no hashtable statistics (reverting to its pre-9.0 behavior). This isn't
ideal, but since the problem manifests only in unusual corner cases,
it's hard to justify taking any risks to do better in the back
branches. A follow-on patch will improve matters in HEAD.
Konstantin Knizhnik and Tom Lane, per diagnosis by Thomas Munro
of a trouble report from Alvaro Herrera.
Discussion: https://postgr.es/m/[email protected]
M src/backend/executor/nodeHashjoin.c
Doc: clarify locking requirements for ALTER TABLE ADD FOREIGN KEY.
commit : 61a9b814c553439854e9515ecb6458f77402443a
author : Tom Lane <[email protected]>
date : Fri, 10 Apr 2020 13:12:58 -0400
committer: Tom Lane <[email protected]>
date : Fri, 10 Apr 2020 13:12:58 -0400
The docs explained that a SHARE ROW EXCLUSIVE lock is needed on the
referenced table, but failed to say the same about the table being
altered. Since the page says that ACCESS EXCLUSIVE lock is taken
unless otherwise stated, this left readers with the wrong conclusion.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/ref/alter_table.sgml
Doc: sync CREATE GROUP syntax synopsis with CREATE ROLE.
commit : 8f111150e68a0560dae67dda628296d5a26817b7
author : Tom Lane <[email protected]>
date : Fri, 10 Apr 2020 10:44:10 -0400
committer: Tom Lane <[email protected]>
date : Fri, 10 Apr 2020 10:44:10 -0400
CREATE GROUP is an exact alias for CREATE ROLE, and CREATE USER is
almost an exact alias, as can easily be confirmed by checking the
code. So the man page syntax descriptions ought to match up. The
last few additions of role options seem to have forgotten to update
create_group.sgml, though. Fix that, and add a naggy reminder to
create_role.sgml in hopes of not forgetting again.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/ref/create_group.sgml
Further cleanup of ts_headline code.
commit : 9be664d715ebcb7265c6f3e2bdba89de2b45d66c
author : Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 15:38:43 -0400
committer: Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 15:38:43 -0400
Suppress a probably-meaningless uninitialized-variable warning
(induced by my previous patch, I'm sorry to say).
Improve mark_hl_fragments()'s test for overlapping cover strings:
it failed to consider the possibility that the current string is
strictly within another one. That's unlikely given the preceding
splitting into MaxWords fragments, but I don't think it's impossible.
Discussion: https://postgr.es/m/[email protected]
M src/backend/tsearch/wparser_def.c
Doc: improve documentation about ts_headline() function.
commit : 2971180929b6d3902ea31b3274929955b05e2f5e
author : Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 15:11:08 -0400
committer: Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 15:11:08 -0400
Now that I've had my nose in that code, I thought the docs about
it left something to be desired.
M doc/src/sgml/textsearch.sgml
Fix default text search parser's ts_headline code for phrase queries.
commit : 5f7247b3ba6b7a7e92bcf2e15a6b75223c5d3dea
author : Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 13:19:23 -0400
committer: Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 13:19:23 -0400
This code could produce very poor results when asked to highlight a
string based on a query using phrase-match operators. The root cause
is that hlCover(), which is supposed to find a minimal substring that
matches the query, was written assuming that word position is not
significant. I'm only 95% convinced that its algorithm was correct even
for plain AND/OR queries; but it definitely fails completely for phrase
matches, causing it to possibly not identify a cover string at all.
Hence, rewrite hlCover() with a less-tense algorithm that just tries
all the possible substrings, earlier and shorter ones first. (This is
not as bad as it sounds performance-wise, because all of the string
matching has been done already: the repeated tsquery match checks
boil down to pointer comparisons.)
Unfortunately, since that approach produces more candidate cover
strings than before, it also exposes that there were bugs in the
heuristics in mark_hl_words() for selecting a best cover string.
Fixes there include:
* Do not apply the ShortWord filter to words that appear in the query.
* Remove a misguided optimization for quickly rejecting a cover.
* Fix order-of-operation bug that could cause computation of a
wrong figure of merit (poslen) when shortening a cover.
* Change the preference rule so that candidate headlines that do not
include their whole cover string (after MaxWords trimming) are lowest
priority, since they may not actually satisfy the user's query.
This results in some changes in existing regression test cases,
but they all seem reasonable. Note in particular that the tests
involving strings like "1 2 3" were previously being affected by
the ShortWord filter, masking the normal matching behavior.
Per bug #16345 from Augustinas Jokubauskas; the new test cases are
based on that example. Back-patch to 9.6 where phrase search was
added to tsquery.
Discussion: https://postgr.es/m/[email protected]
M src/backend/tsearch/wparser_def.c
M src/test/regress/expected/tsearch.out
M src/test/regress/sql/tsearch.sql
Cosmetic improvements for default text search parser's ts_headline code.
commit : afab3998685f61d07c3ae05bf22fc5f2a0e92557
author : Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 12:37:00 -0400
committer: Tom Lane <[email protected]>
date : Thu, 9 Apr 2020 12:37:00 -0400
This code was woefully unreadable and under-commented. Try to improve
matters by adding comments, using some macros to make complicated
if-tests more readable, using boolean type where appropriate, etc.
There are a couple of tiny coding improvements too, but this commit
includes (I hope) no behavioral change.
Nonetheless, back-patch as far as 9.6, because a followup bug-fixing
commit depends on this.
Discussion: https://postgr.es/m/[email protected]
M src/backend/tsearch/wparser_def.c
Fix pg_dump/pg_restore to restore event trigger comments later.
commit : 830471e0dcf67b12f229bfa9489643eb108f580f
author : Tom Lane <[email protected]>
date : Wed, 8 Apr 2020 11:23:39 -0400
committer: Tom Lane <[email protected]>
date : Wed, 8 Apr 2020 11:23:39 -0400
Repair an oversight in commit 8728b2c70: if we're postponing restore
of event triggers to the end, we must also postpone restoring any
comments on them, since of course we cannot create the comments first.
(This opens yet another opportunity for an event trigger to bollix
the restore, but there's no help for that.)
Per bug #16346 from Alexander Lakhin.
Like the previous commit, back-patch to all supported branches.
Hamid Akhtar and Tom Lane
Discussion: https://postgr.es/m/[email protected]
M src/bin/pg_dump/pg_backup_archiver.c
Fix circle_in to accept "(x,y),r" as it's advertised to do.
commit : 4c7a311a2df9b3b91285def8de2e1308f90e9e21
author : Tom Lane <[email protected]>
date : Tue, 7 Apr 2020 20:50:02 -0400
committer: Tom Lane <[email protected]>
date : Tue, 7 Apr 2020 20:50:02 -0400
Our documentation describes four allowed input syntaxes for circles,
but the regression tests tried only three ... with predictable
consequences. Remarkably, this has been wrong since the circle
datatype was added in 1997, but nobody noticed till now.
David Zhang, with some help from me
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/geo_ops.c
M src/test/regress/expected/circle.out
M src/test/regress/sql/circle.sql
Adjust bytea get_bit/set_bit to cope with bytea strings > 256MB.
commit : 889786e0e8c1eba9e770d173bbef2244f67e72c9
author : Tom Lane <[email protected]>
date : Tue, 7 Apr 2020 16:30:55 -0400
committer: Tom Lane <[email protected]>
date : Tue, 7 Apr 2020 16:30:55 -0400
Since the existing bit number argument can't exceed INT32_MAX, it's
not possible for these functions to manipulate bits beyond the first
256MB of a bytea value. However, it'd be good if they could do at
least that much, and not fall over entirely for longer bytea values.
Adjust the comparisons to be done in int64 arithmetic so that works.
Also tweak the error reports to show sane values in case of overflow.
Also add some test cases to improve the miserable code coverage
of these functions.
Apply patch to back branches only; HEAD has a better solution
as of commit 26a944cf2.
Extracted from a much larger patch by Movead Li
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/varlena.c
M src/test/regress/expected/strings.out
M src/test/regress/sql/strings.sql
Preserve clustered index after rewrites with ALTER TABLE
commit : cef2b8d52c59168bf34c22bff0ed98fea7232981
author : Michael Paquier <[email protected]>
date : Mon, 6 Apr 2020 11:05:57 +0900
committer: Michael Paquier <[email protected]>
date : Mon, 6 Apr 2020 11:05:57 +0900
A table rewritten by ALTER TABLE would lose tracking of an index usable
for CLUSTER. This setting is tracked by pg_index.indisclustered and is
controlled by ALTER TABLE, so some extra work was needed to restore it
properly. Note that ALTER TABLE only marks the index that can be used
for clustering, and does not do the actual operation.
Author: Amit Langote, Justin Pryzby
Reviewed-by: Ibrar Ahmed, Michael Paquier
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M src/backend/commands/tablecmds.c
M src/backend/utils/cache/lsyscache.c
M src/include/utils/lsyscache.h
M src/test/regress/expected/alter_table.out
M src/test/regress/sql/alter_table.sql
Use TransactionXmin instead of RecentGlobalXmin in heap_abort_speculative().
commit : 0e708d3115958ffcd8e91123f405dc482871abf6
author : Andres Freund <[email protected]>
date : Sun, 5 Apr 2020 17:47:30 -0700
committer: Andres Freund <[email protected]>
date : Sun, 5 Apr 2020 17:47:30 -0700
There's a very low risk that RecentGlobalXmin could be far enough in
the past to be older than relfrozenxid, or even wrapped
around. Luckily the consequences of that having happened wouldn't be
too bad - the page wouldn't be pruned for a while.
Avoid that risk by using TransactionXmin instead. As that's announced
via MyPgXact->xmin, it is protected against wrapping around (see code
comments for details around relfrozenxid).
Author: Andres Freund
Discussion: https://postgr.es/m/[email protected]
Backpatch: 9.5-
M src/backend/access/heap/heapam.c
Save errno across LWLockRelease() calls
commit : 038c9bbe9b6193cf8eeea3f7485134ef17fd947b
author : Peter Eisentraut <[email protected]>
date : Sun, 5 Apr 2020 10:02:00 +0200
committer: Peter Eisentraut <[email protected]>
date : Sun, 5 Apr 2020 10:02:00 +0200
Fixup for "Drop slot's LWLock before returning from SaveSlotToPath()"
Reported-by: Michael Paquier <[email protected]>
M src/backend/replication/slot.c
Fix bugs in gin_fuzzy_search_limit processing.
commit : 44c763fe993013d44404116872780e1acdfa8988
author : Tom Lane <[email protected]>
date : Fri, 3 Apr 2020 13:15:30 -0400
committer: Tom Lane <[email protected]>
date : Fri, 3 Apr 2020 13:15:30 -0400
entryGetItem()'s three code paths each contained bugs associated
with filtering the entries for gin_fuzzy_search_limit.
The posting-tree path failed to advance "advancePast" after having
decided to filter an item. If we ran out of items on the current
page and needed to advance to the next, what would actually happen
is that entryLoadMoreItems() would re-load the same page. Eventually,
the random dropItem() test would accept one of the same items it'd
previously rejected, and we'd move on --- but it could take awhile
with small gin_fuzzy_search_limit. To add insult to injury, this
case would inevitably cause entryLoadMoreItems() to decide it needed
to re-descend from the root, making things even slower.
The posting-list path failed to implement gin_fuzzy_search_limit
filtering at all, so that all entries in the posting list would
be returned.
The bitmap-result path used a "gotitem" variable that it failed to
update in the one place where it'd actually make a difference, ie
at the one "continue" statement. I think this was unreachable in
practice, because if we'd looped around then it shouldn't be the
case that the entries on the new page are before advancePast.
Still, the "gotitem" variable was contributing nothing to either
clarity or correctness, so get rid of it.
Refactor all three loops so that the termination conditions are
more alike and less unreadable.
The code coverage report showed that we had no coverage at all for
the re-descend-from-root code path in entryLoadMoreItems(), which
seems like a very bad thing, so add a test case that exercises it.
We also had exactly no coverage for gin_fuzzy_search_limit, so add a
simplistic test case that at least hits those code paths a little bit.
Back-patch to all supported branches.
Adé Heyward and Tom Lane
Discussion: https://postgr.es/m/CAEknJCdS-dE1Heddptm7ay2xTbSeADbkaQ8bU2AXRCVC2LdtKQ@mail.gmail.com
M src/backend/access/gin/ginget.c
M src/test/regress/expected/gin.out
M src/test/regress/sql/gin.sql
Fix bogus CALLED_AS_TRIGGER() defenses.
commit : 85f0d470380902c8c62d0165c349c82d81c3e056
author : Tom Lane <[email protected]>
date : Fri, 3 Apr 2020 11:24:56 -0400
committer: Tom Lane <[email protected]>
date : Fri, 3 Apr 2020 11:24:56 -0400
contrib/lo's lo_manage() thought it could use
trigdata->tg_trigger->tgname in its error message about
not being called as a trigger. That naturally led to a core dump.
unique_key_recheck() figured it could Assert that fcinfo->context
is a TriggerData node in advance of having checked that it's
being called as a trigger. That's harmless in production builds,
and perhaps not that easy to reach in any case, but it's logically
wrong.
The first of these per bug #16340 from William Crowell;
the second from manual inspection of other CALLED_AS_TRIGGER
call sites.
Back-patch the lo.c change to all supported branches, the
other to v10 where the thinko crept in.
Discussion: https://postgr.es/m/[email protected]
M contrib/lo/lo.c
M src/backend/commands/constraint.c
doc: remove unnecessary INNER keyword
commit : de7561f7d87df7dff8c6b29ac0d6435795d42372
author : Bruce Momjian <[email protected]>
date : Thu, 2 Apr 2020 17:42:09 -0400
committer: Bruce Momjian <[email protected]>
date : Thu, 2 Apr 2020 17:42:09 -0400
A join that was added in commit 9b2009c4cf that did not use the INNER
keyword but the existing query used it. It was cleaner to remove the
existing INNER keyword.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/pgbuffercache.sgml
doc: remove comma, related to commit 92d31085e9
commit : 8a043d8673289c2a0c6256fc15cc641bb91c5674
author : Bruce Momjian <[email protected]>
date : Thu, 2 Apr 2020 17:27:43 -0400
committer: Bruce Momjian <[email protected]>
date : Thu, 2 Apr 2020 17:27:43 -0400
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/func.sgml
psql: do file completion for \gx
commit : a936012d6b2c9b05b856b3fc936fb2ac6af09164
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 23:01:33 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 23:01:33 -0400
This was missed when the feature was added.
Reported-by: Vik Fearing
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 10
M src/bin/psql/tab-complete.c
makefile: use proper linker flags for C++ compiles
commit : f1e8362aefc866a6f75b6b41edccd03d51235d17
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 22:26:11 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 22:26:11 -0400
Add CFLAGS_SL flags for C++ compiles, which adds needed -fPIC linker
flag.
Reported-by: Oleksii Kliukin
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 10 only
M src/Makefile.shlib
doc: remove mention of bitwise operators as solely type-limited
commit : 67427a159b0b5d9091ace90990950a926e46cc89
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 18:44:29 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 18:44:29 -0400
There are other operators that have limited number data type support, so
just remove the sentence.
Reported-by: Sergei Agalakov
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/func.sgml
doc: clarify hierarchy of objects: global, db, schema, etc.
commit : 4bd53803ef73b43124693e4a96e973e9329b8361
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 18:10:39 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 18:10:39 -0400
The previous wording was confusing because it wasn't in decreasing order
and had to backtrack. Also clarify role/user wording.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/ddl.sgml
M doc/src/sgml/manage-ag.sgml
doc: restore wording from recent patch "rolled back to"
commit : b9d94670c1d9b9a6604bb5cd80f77e93aee4e776
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:52:48 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:52:48 -0400
Reported-by: Tom Lane
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5 - 12
M doc/src/sgml/mvcc.sgml
doc: clarify when row-level locks are released
commit : 5e6a44e47f738373b686ad1b0bf8bcb40c6058c0
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:27:32 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:27:32 -0400
They are released just like table-level locks. Also clean up wording.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/mvcc.sgml
doc: add namespace column to pg_buffercache example query
commit : 7c8fb4a5e229547882db0577aacc85c18803f8bd
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:16:33 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:16:33 -0400
Without the namespace, the table name could be ambiguous.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/pgbuffercache.sgml
doc: clarify which table creation is used for inheritance part.
commit : 690e4648719183b0527b6c20a87798e5bd6282e4
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:07:43 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 17:07:43 -0400
Previously people might assume that the partition syntax version of
CREATE TABLE is to be used for the inheritance partition table example;
mention that the non-partitioned version should be used.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 10
M doc/src/sgml/ddl.sgml
doc: adjust UPDATE/DELETE's FROM/USING to match SELECT's FROM
commit : b8c651b75b2133d843b4fbbd52254b55792339cd
author : Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 16:31:44 -0400
committer: Bruce Momjian <[email protected]>
date : Tue, 31 Mar 2020 16:31:44 -0400
Previously the syntax and wording were unclear.
Reported-by: Alexey Bashtanov
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/ref/delete.sgml
M doc/src/sgml/ref/update.sgml
Teach pg_ls_dir_files() to ignore ENOENT failures from stat().
commit : 83f7761d84e6b9879decd223b0e172afcb1426d8
author : Tom Lane <[email protected]>
date : Tue, 31 Mar 2020 12:57:55 -0400
committer: Tom Lane <[email protected]>
date : Tue, 31 Mar 2020 12:57:55 -0400
Buildfarm experience shows that this function can fail with ENOENT
if some other process unlinks a file between when we read the directory
entry and when we try to stat() it. The problem is old but we had
not noticed it until 085b6b667 added regression test coverage.
To fix, just ignore ENOENT failures. There is one other case that
this might hide: a symlink that points to nowhere. That seems okay
though, at least better than erroring.
Back-patch to v10 where this function was added, since the regression
test cases were too.
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/genfile.c
Back-patch addition of stack overflow and interrupt checks for lquery.
commit : 8b902e438608c2ef7d3875a74a81e66735fab358
author : Tom Lane <[email protected]>
date : Tue, 31 Mar 2020 11:37:44 -0400
committer: Tom Lane <[email protected]>
date : Tue, 31 Mar 2020 11:37:44 -0400
Experimentation shows that it's not hard at all to drive the
old implementation of "ltree ~ lquery" match to stack overflow,
so throw in a check_stack_depth() call, as I just did in HEAD.
I wasn't able to make it take a long time, because all the
pathological cases I tried hit stack overflow first; but
I bet there are some others that do take a long time, so add
CHECK_FOR_INTERRUPTS() too.
Discussion: https://postgr.es/m/CAP_rww=waX2Oo6q+MbMSiZ9ktdj6eaJj0cQzNu=Ry2cCDij5fw@mail.gmail.com
M contrib/ltree/lquery_op.c
Be more careful about extracting encoding from locale strings on Windows.
commit : d59e83cf5925620703a32cc40f9f75bbb90956e8
author : Tom Lane <[email protected]>
date : Mon, 30 Mar 2020 11:14:58 -0400
committer: Tom Lane <[email protected]>
date : Mon, 30 Mar 2020 11:14:58 -0400
GetLocaleInfoEx() can fail on strings that setlocale() was perfectly
happy with. A common way for that to happen is if the locale string
is actually a Unix-style string, say "et_EE.UTF-8". In that case,
what's after the dot is an encoding name, not a Windows codepage number;
blindly treating it as a codepage number led to failure, with a fairly
silly error message. Hence, check to see if what's after the dot is
all digits, and if not, treat it as a literal encoding name rather than
a codepage number. This will do the right thing with many Unix-style
locale strings, and produce a more sensible error message otherwise.
Somewhat independently of that, treat a zero (CP_ACP) result from
GetLocaleInfoEx() as meaning that we must use UTF-8 encoding.
Back-patch to all supported branches.
Juan José Santamaría Flecha
Discussion: https://postgr.es/m/[email protected]
M src/port/chklocale.c
Doc: correct misstatement about ltree label maximum length.
commit : e4e07cca5a8a86bedcd874a6f674550407d35555
author : Tom Lane <[email protected]>
date : Sun, 29 Mar 2020 18:54:19 -0400
committer: Tom Lane <[email protected]>
date : Sun, 29 Mar 2020 18:54:19 -0400
The documentation says that the max length is 255 bytes, but
code inspection says it's actually 255 characters; and relevant
lengths are stored as uint16 so that that works.
M doc/src/sgml/ltree.sgml
Protect against overflow of ltree.numlevel and lquery.numlevel.
commit : 2618ac6c6535171f4993a38e3410955e1c2a2073
author : Tom Lane <[email protected]>
date : Sat, 28 Mar 2020 17:09:51 -0400
committer: Tom Lane <[email protected]>
date : Sat, 28 Mar 2020 17:09:51 -0400
These uint16 fields could be overflowed by excessively long input,
producing strange results. Complain for invalid input.
Likewise check for out-of-range values of the repeat counts in lquery.
(We don't try too hard on that one, notably not bothering to detect
if atoi's result has overflowed.)
Also detect length overflow in ltree_concat.
In passing, be more consistent about whether "syntax error" messages
include the type name. Also, clarify the documentation about what
the size limit is.
This has been broken for a long time, so back-patch to all supported
branches.
Nikita Glukhov, reviewed by Benjie Gillam and Tomas Vondra
Discussion: https://postgr.es/m/CAP_rww=waX2Oo6q+MbMSiZ9ktdj6eaJj0cQzNu=Ry2cCDij5fw@mail.gmail.com
M contrib/ltree/expected/ltree.out
M contrib/ltree/ltree.h
M contrib/ltree/ltree_io.c
M contrib/ltree/ltree_op.c
M contrib/ltree/sql/ltree.sql
M doc/src/sgml/ltree.sgml
Ensure snapshot is registered within ScanPgRelation().
commit : a0e2a178c6409db195e8e902e4ac279ad60777cb
author : Andres Freund <[email protected]>
date : Sat, 28 Mar 2020 11:52:11 -0700
committer: Andres Freund <[email protected]>
date : Sat, 28 Mar 2020 11:52:11 -0700
In 9.4 I added support to use a historical snapshot in
ScanPgRelation(), while adding logical decoding. Unfortunately a
conflict with the concurrent removal of SnapshotNow was incorrectly
resolved, leading to an unregistered snapshot being used.
It is not correct to use an unregistered (or non-active) snapshot for
anything non-trivial, because catalog invalidations can cause the
snapshot to be invalidated.
Luckily it seems unlikely to actively cause problems in practice, as
ScanPgRelation() requires that we already have a lock on the relation,
we only look for a single row, and we don't appear to rely on the
result's tid to be correct. It however is clearly wrong and potential
negative consequences would likely be hard to find. So it seems worth
backpatching the fix, even without a concrete hazard.
Discussion: https://postgr.es/m/[email protected]
Backpatch: 9.5-
M src/backend/utils/cache/relcache.c
Ensure that plpgsql cleans up cleanly during parallel-worker exit.
commit : 42d3649b58f4bd5f06b5e20c24439a9d72bc45b6
author : Tom Lane <[email protected]>
date : Thu, 26 Mar 2020 18:06:55 -0400
committer: Tom Lane <[email protected]>
date : Thu, 26 Mar 2020 18:06:55 -0400
plpgsql_xact_cb ought to treat events XACT_EVENT_PARALLEL_COMMIT and
XACT_EVENT_PARALLEL_ABORT like XACT_EVENT_COMMIT and XACT_EVENT_ABORT
respectively, since its goal is to do process-local cleanup. This
oversight caused plpgsql's end-of-transaction cleanup to not get done
in parallel workers. Since a parallel worker will exit just after the
transaction cleanup, the effects of this are limited. I couldn't find
any case in the core code with user-visible effects, but perhaps there
are some in extensions. In any case it's wrong, so let's fix it before
it bites us not after.
In passing, add some comments around the handling of expression
evaluation resources in DO blocks. There's no live bug there, but it's
quite unobvious what's happening; at least I thought so. This isn't
related to the other issue, except that I found both things while poking
at expression-evaluation performance.
Back-patch the plpgsql_xact_cb fix to 9.5 where those event types
were introduced, and the DO-block commentary to v11 where DO blocks
gained the ability to issue COMMIT/ROLLBACK.
Discussion: https://postgr.es/m/[email protected]
M src/pl/plpgsql/src/pl_exec.c
Drop slot's LWLock before returning from SaveSlotToPath()
commit : f36a10434a31bdf6298071c1ddf8d151d103d9fa
author : Peter Eisentraut <[email protected]>
date : Thu, 26 Mar 2020 11:51:39 +0100
committer: Peter Eisentraut <[email protected]>
date : Thu, 26 Mar 2020 11:51:39 +0100
When SaveSlotToPath() is called with elevel=LOG, the early exits didn't
release the slot's io_in_progress_lock.
This could result in a walsender being stuck on the lock forever. A
possible way to get into this situation is if the offending code paths
are triggered in a low disk space situation.
Author: Pavan Deolasee <[email protected]>
Reported-by: Craig Ringer <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/56a138c5-de61-f553-7e8f-6789296de785%402ndquadrant.com
M src/backend/replication/slot.c
Add regression tests for constraint errors in partitioned tables.
commit : 2060999a4d6e4b946a3f032bdd3df1c55ac855b3
author : Andres Freund <[email protected]>
date : Mon, 23 Mar 2020 14:24:06 -0700
committer: Andres Freund <[email protected]>
date : Mon, 23 Mar 2020 14:24:06 -0700
While #16293 only applied to 11 (and 10 to some degree), it seems best
to add tests to all branches with partitioning support.
Reported-By: Daniel WM
Author: Andres Freund
Bug: #16293
Discussion: https://postgr.es/m/[email protected]
Backpatch: 10-
M src/test/regress/expected/inherit.out
M src/test/regress/sql/inherit.sql
Fix potential crash after constraint violation errors in partitioned tables.
commit : 44170a58092d74913779181392015c9994a2dfc3
author : Andres Freund <[email protected]>
date : Mon, 23 Mar 2020 13:57:43 -0700
committer: Andres Freund <[email protected]>
date : Mon, 23 Mar 2020 13:57:43 -0700
During the reporting of constraint violations for partitioned tables,
ExecPartitionCheckEmitError(), ExecConstraints(),
ExecWithCheckOptions() set the slot descriptor of the input slot to
the root partition's tuple desc. That's generally problematic when
the slot could be used by other routines, but can cause crashes after
the introduction of slots with "fixed" tuple descriptors in
ad7dbee368a.
The problem likely escaped detection so far for two reasons: First,
currently the only known way that these routines are used with a
partitioned table that is not "owned" by partitioning code is when
"fast defaults" are used for the child partition. Second, as an error
is raised afterwards, an "external" slot that had its descriptor
changed, is very unlikely to continue being used.
Even though the issue currently is only known to cause a crash for
11 (as that has both fast defaults and "fixed" slot descriptors), it
seems worth applying the fix to 10 too. Potentially changing random
slots is hazardous.
Regression tests will be added in a separate commit, as it seems best
to add them for master and 12 too.
Reported-By: Daniel WM
Author: Andres Freund
Bug: #16293
Discussion: https://postgr.es/m/[email protected]
Backpatch: 11, 10 only
M src/backend/executor/execMain.c
Doc: explain that LIKE et al can be used in ANY (sub-select) etc.
commit : a7500cce1ef27a319b3d88d9466f71539c187966
author : Tom Lane <[email protected]>
date : Mon, 23 Mar 2020 12:42:15 -0400
committer: Tom Lane <[email protected]>
date : Mon, 23 Mar 2020 12:42:15 -0400
This wasn't stated anywhere, and it's perhaps not that obvious,
since we get questions about it from time to time. Also undocumented
was that the parser actually translates these into operators.
Discussion: https://postgr.es/m/CAFj8pRBkvZ71BqGKZnBBG4=0cKG+s50Dy+DYmrizUKEpAtdc+w@mail.gmail.com
M doc/src/sgml/func.sgml
Fix our getopt_long's behavior for a command line argument of just "-".
commit : ef7d6d79af43b168caf3ecc5847dcf47032b2253
author : Tom Lane <[email protected]>
date : Mon, 23 Mar 2020 11:58:01 -0400
committer: Tom Lane <[email protected]>
date : Mon, 23 Mar 2020 11:58:01 -0400
src/port/getopt_long.c failed on such an argument, always seeing it
as an unrecognized switch. This is unhelpful; better is to treat such
an item as a non-switch argument. That behavior is what we find in
GNU's getopt_long(); it's what src/port/getopt.c does; and it is
required by POSIX for getopt(), which getopt_long() ought to be
generally a superset of. Moreover, it's expected by ecpg, which
intends an argument of "-" to mean "read from stdin". So fix it.
Also add some documentation about ecpg's behavior in this area, since
that was miserably underdocumented. I had to reverse-engineer it
from the code.
Per bug #16304 from James Gray. Back-patch to all supported branches,
since this has been broken forever.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/ref/ecpg-ref.sgml
M src/port/getopt_long.c
Doc: Fix type of some storage parameters in CREATE TABLE page
commit : 48f57efa49a735873afd3921c67117b8722b75a8
author : Michael Paquier <[email protected]>
date : Mon, 23 Mar 2020 13:38:20 +0900
committer: Michael Paquier <[email protected]>
date : Mon, 23 Mar 2020 13:38:20 +0900
autovacuum_vacuum_scale_factor and autovacuum_analyze_scale_factor have
been documented as "float4", but "floating type" is used in this case
for GUCs and relation options in the documentation.
Author: Atsushi Torikoshi
Discussion: https://postgr.es/m/CACZ0uYFf_p9BpbjLccx3CA=eM1Hk2Te=ULY4iptGLUhL-JxCPA@mail.gmail.com
Backpatch-through: 9.5
M doc/src/sgml/ref/create_table.sgml
Revert "Skip WAL for new relfilenodes, under wal_level=minimal."
commit : 0a6c9c66da26751322d90f75c872c350376cf55e
author : Noah Misch <[email protected]>
date : Sun, 22 Mar 2020 09:24:09 -0700
committer: Noah Misch <[email protected]>
date : Sun, 22 Mar 2020 09:24:09 -0700
This reverts commit cb2fd7eac285b1b0a24eeb2b8ed4456b66c5a09f. Per
numerous buildfarm members, it was incompatible with parallel query, and
a test case assumed LP64. Back-patch to 9.5 (all supported versions).
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/config.sgml
M doc/src/sgml/perform.sgml
M src/backend/access/gist/gistbuild.c
M src/backend/access/gist/gistutil.c
M src/backend/access/gist/gistxlog.c
M src/backend/access/heap/heapam.c
M src/backend/access/heap/rewriteheap.c
M src/backend/access/nbtree/nbtsort.c
M src/backend/access/rmgrdesc/gistdesc.c
M src/backend/access/transam/README
M src/backend/access/transam/xact.c
M src/backend/access/transam/xlogutils.c
M src/backend/bootstrap/bootparse.y
M src/backend/catalog/storage.c
M src/backend/commands/cluster.c
M src/backend/commands/copy.c
M src/backend/commands/createas.c
M src/backend/commands/matview.c
M src/backend/commands/tablecmds.c
M src/backend/nodes/copyfuncs.c
M src/backend/nodes/equalfuncs.c
M src/backend/nodes/outfuncs.c
M src/backend/parser/gram.y
M src/backend/parser/parse_utilcmd.c
M src/backend/storage/buffer/bufmgr.c
M src/backend/storage/lmgr/lock.c
M src/backend/storage/smgr/md.c
M src/backend/storage/smgr/smgr.c
M src/backend/utils/cache/relcache.c
M src/backend/utils/misc/guc.c
M src/backend/utils/misc/postgresql.conf.sample
M src/include/access/gist_private.h
M src/include/access/gistxlog.h
M src/include/access/heapam.h
M src/include/access/rewriteheap.h
M src/include/catalog/storage.h
M src/include/nodes/parsenodes.h
M src/include/storage/bufmgr.h
M src/include/storage/lock.h
M src/include/storage/smgr.h
M src/include/utils/rel.h
M src/include/utils/relcache.h
D src/test/recovery/t/018_wal_optimize.pl
M src/test/regress/expected/alter_table.out
M src/test/regress/expected/create_table.out
M src/test/regress/sql/alter_table.sql
M src/test/regress/sql/create_table.sql
Skip WAL for new relfilenodes, under wal_level=minimal.
commit : 9d6215205e5afe3062294c081dec4c9c41a12a5b
author : Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
committer: Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
Until now, only selected bulk operations (e.g. COPY) did this. If a
given relfilenode received both a WAL-skipping COPY and a WAL-logged
operation (e.g. INSERT), recovery could lose tuples from the COPY. See
src/backend/access/transam/README section "Skipping WAL for New
RelFileNode" for the new coding rules. Maintainers of table access
methods should examine that section.
To maintain data durability, just before commit, we choose between an
fsync of the relfilenode and copying its contents to WAL. A new GUC,
wal_skip_threshold, guides that choice. If this change slows a workload
that creates small, permanent relfilenodes under wal_level=minimal, try
adjusting wal_skip_threshold. Users setting a timeout on COMMIT may
need to adjust that timeout, and log_min_duration_statement analysis
will reflect time consumption moving to COMMIT from commands like COPY.
Internally, this requires a reliable determination of whether
RollbackAndReleaseCurrentSubTransaction() would unlink a relation's
current relfilenode. Introduce rd_firstRelfilenodeSubid. Amend the
specification of rd_createSubid such that the field is zero when a new
rel has an old rd_node. Make relcache.c retain entries for certain
dropped relations until end of transaction.
Back-patch to 9.5 (all supported versions). This introduces a new WAL
record type, XLOG_GIST_ASSIGN_LSN, without bumping XLOG_PAGE_MAGIC. As
always, update standby systems before master systems. This changes
sizeof(RelationData) and sizeof(IndexStmt), breaking binary
compatibility for affected extensions. (The most recent commit to
affect the same class of extensions was
089e4d405d0f3b94c74a2c6a54357a84a681754b.)
Kyotaro Horiguchi, reviewed (in earlier, similar versions) by Robert
Haas. Heikki Linnakangas and Michael Paquier implemented earlier
designs that materially clarified the problem. Reviewed, in earlier
designs, by Andrew Dunstan, Andres Freund, Alvaro Herrera, Tom Lane,
Fujii Masao, and Simon Riggs. Reported by Martijn van Oosterhout.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/config.sgml
M doc/src/sgml/perform.sgml
M src/backend/access/gist/gistbuild.c
M src/backend/access/gist/gistutil.c
M src/backend/access/gist/gistxlog.c
M src/backend/access/heap/heapam.c
M src/backend/access/heap/rewriteheap.c
M src/backend/access/nbtree/nbtsort.c
M src/backend/access/rmgrdesc/gistdesc.c
M src/backend/access/transam/README
M src/backend/access/transam/xact.c
M src/backend/access/transam/xlogutils.c
M src/backend/bootstrap/bootparse.y
M src/backend/catalog/storage.c
M src/backend/commands/cluster.c
M src/backend/commands/copy.c
M src/backend/commands/createas.c
M src/backend/commands/matview.c
M src/backend/commands/tablecmds.c
M src/backend/nodes/copyfuncs.c
M src/backend/nodes/equalfuncs.c
M src/backend/nodes/outfuncs.c
M src/backend/parser/gram.y
M src/backend/parser/parse_utilcmd.c
M src/backend/storage/buffer/bufmgr.c
M src/backend/storage/lmgr/lock.c
M src/backend/storage/smgr/md.c
M src/backend/storage/smgr/smgr.c
M src/backend/utils/cache/relcache.c
M src/backend/utils/misc/guc.c
M src/backend/utils/misc/postgresql.conf.sample
M src/include/access/gist_private.h
M src/include/access/gistxlog.h
M src/include/access/heapam.h
M src/include/access/rewriteheap.h
M src/include/catalog/storage.h
M src/include/nodes/parsenodes.h
M src/include/storage/bufmgr.h
M src/include/storage/lock.h
M src/include/storage/smgr.h
M src/include/utils/rel.h
M src/include/utils/relcache.h
A src/test/recovery/t/018_wal_optimize.pl
M src/test/regress/expected/alter_table.out
M src/test/regress/expected/create_table.out
M src/test/regress/sql/alter_table.sql
M src/test/regress/sql/create_table.sql
Back-patch log_newpage_range().
commit : 43434ed94d80b4a181d5d9dc6bda585a9267eb1e
author : Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:33 -0700
committer: Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:33 -0700
Back-patch a subset of commit 9155580fd5fc2a0cbb23376dfca7cd21f59c2c7b
to v11, v10, 9.6, and 9.5. Include the latest repairs to this function.
Use a new XLOG_FPI_MULTI value instead of reusing XLOG_FPI. That way,
if an older server reads WAL from this function, that server will PANIC
instead of applying just one page of the record. The next commit adds a
call to this function.
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/rmgrdesc/xlogdesc.c
M src/backend/access/transam/xlog.c
M src/backend/access/transam/xloginsert.c
M src/backend/replication/logical/decode.c
M src/include/access/xloginsert.h
M src/include/catalog/pg_control.h
During heap rebuild, lock any TOAST index until end of transaction.
commit : 78a34c68920a544292d54f60af561c267b95f64d
author : Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
committer: Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
swap_relation_files() calls toast_get_valid_index() to find and lock
this index, just before swapping with the rebuilt TOAST index. The
latter function releases the lock before returning. Potential for
mischief is low; a concurrent session can issue ALTER INDEX ... SET
(fillfactor = ...), which is not alarming. Nonetheless, changing
pg_class.relfilenode without a lock is unconventional. Back-patch to
9.5 (all supported versions), because another fix needs this.
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/heap/tuptoaster.c
M src/backend/commands/cluster.c
Fix cosmetic blemishes involving rd_createSubid.
commit : 40348680003d637e2068fd4981216f51bff8762b
author : Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
committer: Noah Misch <[email protected]>
date : Sat, 21 Mar 2020 09:38:26 -0700
Remove an obsolete comment from AtEOXact_cleanup(). Restore formatting
of a comment in struct RelationData, mangled by the pgindent run in
commit 9af4159fce6654aa0e081b00d02bca40b978745c. Back-patch to 9.5 (all
supported versions), because another fix stacks on this.
M src/backend/utils/cache/relcache.c
M src/include/utils/rel.h
docs: use alias in WHERE clause of full text search example
commit : 514aca63ea565b23756282bd6c77eb30fc9398b7
author : Bruce Momjian <[email protected]>
date : Fri, 20 Mar 2020 20:19:32 -0400
committer: Bruce Momjian <[email protected]>
date : Fri, 20 Mar 2020 20:19:32 -0400
The current doc query specified an alias in the FROM clause and used in
it the target list, but not in the WHERE clause.
Reported-by: [email protected]
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M doc/src/sgml/textsearch.sgml
Turn off deprecated bison warnings under MSVC
commit : 3163349fd7fe0115b021bfa1fbe4990143957814
author : Andrew Dunstan <[email protected]>
date : Fri, 20 Mar 2020 13:55:15 -0400
committer: Andrew Dunstan <[email protected]>
date : Fri, 20 Mar 2020 13:55:15 -0400
These are disabled by the configure code, so this is just fixing an
inconsistency in the MSVC code.
Backpatch to all live branches.
M src/tools/msvc/pgbison.pl
pg_upgrade: make get_major_server_version() err msg consistent
commit : c9c042dded8792913a0387bd7e9a0d8f7be00978
author : Bruce Momjian <[email protected]>
date : Thu, 19 Mar 2020 15:20:55 -0400
committer: Bruce Momjian <[email protected]>
date : Thu, 19 Mar 2020 15:20:55 -0400
This patch fixes the error message in get_major_server_version() to be
"could not parse version file", and uses the full file path name, rather
than just the data directory path.
Also, commit 4109bb5de4 added the cause of the failure to the "could
not open" error message, and improved quoting. This patch backpatches
the "could not open" cause to PG 12, where it was first widely used, and
backpatches the quoting fix in that patch to all supported releases.
Reported-by: Tom Lane
Discussion: https://postgr.es/m/[email protected]
Author: Dagfinn Ilmari Mannsåker
Backpatch-through: 9.5
M src/bin/pg_upgrade/server.c
Correct the descriptions of recovery-related wait events in docs.
commit : f4efb46d2230ef19165fec78b5c41a78cf6e1213
author : Fujii Masao <[email protected]>
date : Wed, 18 Mar 2020 23:07:17 +0900
committer: Fujii Masao <[email protected]>
date : Wed, 18 Mar 2020 23:07:17 +0900
This commit corrects the descriptions of RecoveryWalAll and RecoveryWalStream
wait events in the documentation.
Back-patch to v10 where those wait events were added.
Author: Fujii Masao
Reviewed-by: Kyotaro Horiguchi, Atsushi Torikoshi
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/monitoring.sgml
Add missing errcode() in a few ereport calls.
commit : 569f9354bb438520296790aee27960634e3465f8
author : Amit Kapila <[email protected]>
date : Wed, 18 Mar 2020 09:46:52 +0530
committer: Amit Kapila <[email protected]>
date : Wed, 18 Mar 2020 09:46:52 +0530
This will allow to specifying SQLSTATE error code for the errors in the
missing places.
Reported-by: Sawada Masahiko
Author: Sawada Masahiko
Backpatch-through: 9.5
Discussion: https://postgr.es/m/CA+fd4k6N8EjNvZpM8nme+y+05mz-SM8Z_BgkixzkA34R+ej0Kw@mail.gmail.com
M contrib/adminpack/adminpack.c
M src/backend/storage/page/bufpage.c
Doc: clarify behavior of "anyrange" pseudo-type.
commit : 3c871d1ead20e6744403e2180d704dd09fd8c2d6
author : Tom Lane <[email protected]>
date : Tue, 17 Mar 2020 15:05:17 -0400
committer: Tom Lane <[email protected]>
date : Tue, 17 Mar 2020 15:05:17 -0400
I noticed that we completely failed to document the restriction
that an "anyrange" result type has to be inferred from an "anyrange"
input. The docs also were less clear than they could be about the
relationship between "anyrange" and "anyarray".
It's been like this all along, so back-patch.
M doc/src/sgml/extend.sgml
Use pkg-config, if available, to locate libxml2 during configure.
commit : d67d7243f914f99bd1103f811efd320c987db2bc
author : Tom Lane <[email protected]>
date : Tue, 17 Mar 2020 12:09:27 -0400
committer: Tom Lane <[email protected]>
date : Tue, 17 Mar 2020 12:09:27 -0400
If pkg-config is installed and knows about libxml2, use its information
rather than asking xml2-config. Otherwise proceed as before. This
patch allows "configure --with-libxml" to succeed on platforms that
have pkg-config but not xml2-config, which is likely to soon become
a typical situation.
The old mechanism can be forced by setting XML2_CONFIG explicitly
(hence, build processes that were already doing so will certainly
not need adjustment). Also, it's now possible to set XML2_CFLAGS
and XML2_LIBS explicitly to override both programs.
There is a small risk of this breaking existing build processes,
if there are multiple libxml2 installations on the machine and
pkg-config disagrees with xml2-config about which to use. The
only case where that seems really likely is if a builder has tried
to select a non-default xml2-config by putting it early in his PATH
rather than setting XML2_CONFIG. Plan to warn against that in the
minor release notes.
Back-patch to v10; before that we had no pkg-config infrastructure,
and it doesn't seem worth adding it for this.
Hugh McMaster and Tom Lane; Peter Eisentraut also made an earlier
attempt at this, from which I lifted most of the docs changes.
Discussion: https://postgr.es/m/CAN9BcdvfUwc9Yx5015bLH2TOiQ-M+t_NADBSPhMF7dZ=pLa_iw@mail.gmail.com
M configure
M configure.in
M doc/src/sgml/installation.sgml
Avoid holding a directory FD open across assorted SRF calls.
commit : 5e4a0b7194b9b53eeedc718fde1430eb649b8b62
author : Tom Lane <[email protected]>
date : Mon, 16 Mar 2020 21:05:29 -0400
committer: Tom Lane <[email protected]>
date : Mon, 16 Mar 2020 21:05:29 -0400
This extends the fixes made in commit 085b6b667 to other SRFs with the
same bug, namely pg_logdir_ls(), pgrowlocks(), pg_timezone_names(),
pg_ls_dir(), and pg_tablespace_databases().
Also adjust various comments and documentation to warn against
expecting to clean up resources during a ValuePerCall SRF's final
call.
Back-patch to all supported branches, since these functions were
all born broken.
Justin Pryzby, with cosmetic tweaks by me
Discussion: https://postgr.es/m/[email protected]
M contrib/adminpack/adminpack.c
M contrib/pgrowlocks/pgrowlocks.c
M doc/src/sgml/xfunc.sgml
M src/backend/utils/adt/datetime.c
M src/backend/utils/adt/genfile.c
M src/backend/utils/adt/misc.c
M src/backend/utils/fmgr/README
M src/include/funcapi.h
M src/test/regress/expected/misc_functions.out
M src/test/regress/sql/misc_functions.sql
Plug memory leak
commit : c6b75b3f14fd4ff973ad3d2e2cfe42b5639bd101
author : Alvaro Herrera <[email protected]>
date : Mon, 16 Mar 2020 16:27:13 -0300
committer: Alvaro Herrera <[email protected]>
date : Mon, 16 Mar 2020 16:27:13 -0300
Introduced by b08dee24a557. Noted by Coverity.
M src/bin/pg_dump/pg_dump.c
C comment: correct commented bytes of max_cached_tuplebufs
commit : 170679216d225d979daf2651f2bf73bc08ffdd26
author : Bruce Momjian <[email protected]>
date : Sat, 14 Mar 2020 17:36:54 -0400
committer: Bruce Momjian <[email protected]>
date : Sat, 14 Mar 2020 17:36:54 -0400
The comment said ~8MB, but it is actually ~64MB.
Reported-by: Kuntal Ghosh
Discussion: https://postgr.es/m/CAGz5QC+GGmHdnxp04B6wcLz2Zcd_HU+wCBrsPyOZP62-BJghig@mail.gmail.com
Backpatch-through: 9.5-10
M src/backend/replication/logical/reorderbuffer.c
Restructure polymorphic-type resolution in funcapi.c.
commit : 61d14971dade445cca407660609793dfdb727538
author : Tom Lane <[email protected]>
date : Sat, 14 Mar 2020 14:42:22 -0400
committer: Tom Lane <[email protected]>
date : Sat, 14 Mar 2020 14:42:22 -0400
resolve_polymorphic_tupdesc() and resolve_polymorphic_argtypes() failed to
cover the case of having to resolve anyarray given only an anyrange input.
The bug was masked if anyelement was also used (as either input or
output), which probably helps account for our not having noticed.
While looking at this I noticed that resolve_generic_type() would produce
the wrong answer if asked to make that same resolution. ISTM that
resolve_generic_type() is confusingly defined and overly complex, so
rather than fix it, let's just make funcapi.c do the specific lookups
it requires for itself.
With this change, resolve_generic_type() is not used anywhere, so remove
it in HEAD. In the back branches, leave it alone (complete with bug)
just in case any external code is using it.
While we're here, make some other refactoring adjustments in funcapi.c
with an eye to upcoming future expansion of the set of polymorphic types:
* Simplify quick-exit tests by adding an overall have_polymorphic_result
flag. This is about a wash now but will be a win when there are more
flags.
* Reduce duplication of code between resolve_polymorphic_tupdesc() and
resolve_polymorphic_argtypes().
* Don't bother to validate correct matching of anynonarray or anyenum;
the parser should have done that, and even if it didn't, just doing
"return false" here would lead to a very confusing, off-point error
message. (Really, "return false" in these two functions should only
occur if the call_expr isn't supplied or we can't obtain data type
info from it.)
* For the same reason, throw an elog rather than "return false" if
we fail to resolve a polymorphic type.
The bug's been there since we added anyrange, so back-patch to
all supported branches.
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/fmgr/funcapi.c
M src/test/regress/expected/rangetypes.out
M src/test/regress/sql/rangetypes.sql
Doc: fix mistaken reference to "PG_ARGNULL_xxx()" macro.
commit : 00f38866f7e966ac4c48c6b027e2666c3ab29398
author : Tom Lane <[email protected]>
date : Fri, 13 Mar 2020 12:49:10 -0400
committer: Tom Lane <[email protected]>
date : Fri, 13 Mar 2020 12:49:10 -0400
This should of course be just "PG_ARGISNULL()".
Also reorder a couple of paras to make the discussion of PG_ARGISNULL
less disjointed.
Back-patch to v10 where the error was introduced.
Laurenz Albe and Tom Lane, per an anonymous docs comment
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/xfunc.sgml
Preserve replica identity index across ALTER TABLE rewrite
commit : 02530da73f0438f7c2073267de6fe2be84f592d7
author : Peter Eisentraut <[email protected]>
date : Fri, 13 Mar 2020 11:28:11 +0100
committer: Peter Eisentraut <[email protected]>
date : Fri, 13 Mar 2020 11:28:11 +0100
If an index was explicitly set as replica identity index, this setting
was lost when a table was rewritten by ALTER TABLE. Because this
setting is part of pg_index but actually controlled by ALTER
TABLE (not part of CREATE INDEX, say), we have to do some extra work
to restore it.
Based-on-patch-by: Quan Zongliang <[email protected]>
Reviewed-by: Euler Taveira <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/[email protected]
M src/backend/commands/tablecmds.c
M src/backend/utils/cache/lsyscache.c
M src/include/utils/lsyscache.h
M src/test/regress/expected/replica_identity.out
M src/test/regress/sql/replica_identity.sql
Fix nextXid tracking bug on standbys (9.5-11 only).
commit : 05e0aff58446203d01dfc16717866df769e4e25e
author : Thomas Munro <[email protected]>
date : Thu, 12 Mar 2020 18:06:54 +1300
committer: Thomas Munro <[email protected]>
date : Thu, 12 Mar 2020 18:06:54 +1300
RecordKnownAssignedTransactionIds() should never move
nextXid backwards. Before this commit, that could happen
if some other code path had advanced it without advancing
latestObservedXid.
One consequence is that a well timed XLOG_CHECKPOINT_ONLINE
could cause hot standby feedback messages to get confused
and report an xmin from a future epoch, potentially allowing
vacuum to run too soon on the primary.
Repair, by making sure RecordKnownAssignedTransactionIds()
can only move nextXid forwards.
In release 12 and master, this was already done by commit
2fc7af5e, which consolidated similar code and straightened
out this bug. Back-patch to supported releases before that.
Author: Eka Palamadai <[email protected]>
Discussion: https://postgr.es/m/[email protected]
M src/backend/storage/ipc/procarray.c
Fix test case instability introduced in 085b6b667.
commit : 064e029e60a516dea6566652d729419a51294ac2
author : Tom Lane <[email protected]>
date : Wed, 11 Mar 2020 18:23:57 -0400
committer: Tom Lane <[email protected]>
date : Wed, 11 Mar 2020 18:23:57 -0400
I forgot that the WAL directory might hold other files besides WAL
segments, notably including new segments still being filled.
That means a blind test for the first file's size being 16MB can
fail. Restrict based on file name length to make it more robust.
Per buildfarm.
M src/test/regress/expected/misc_functions.out
M src/test/regress/sql/misc_functions.sql
Add pg_dump support for ALTER obj DEPENDS ON EXTENSION
commit : d04e342ba404171c706f96e501865fe0d5f6b1e5
author : Alvaro Herrera <[email protected]>
date : Wed, 11 Mar 2020 16:54:54 -0300
committer: Alvaro Herrera <[email protected]>
date : Wed, 11 Mar 2020 16:54:54 -0300
pg_dump is oblivious to this kind of dependency, so they're lost on
dump/restores (and pg_upgrade). Have pg_dump emit ALTER lines so that
they're preserved. Add some pg_dump tests for the whole thing, also.
Reviewed-by: Tom Lane (offlist)
Reviewed-by: Ibrar Ahmed
Reviewed-by: Ahsan Hadi (who also reviewed commit 899a04f5ed61)
Discussion: https://postgr.es/m/[email protected]
M src/bin/pg_dump/common.c
M src/bin/pg_dump/pg_dump.c
M src/bin/pg_dump/pg_dump.h
M src/test/modules/test_pg_dump/t/001_base.pl
Avoid holding a directory FD open across pg_ls_dir_files() calls.
commit : 05283dd5b5792b094b8211d46fef1082d411e679
author : Tom Lane <[email protected]>
date : Wed, 11 Mar 2020 15:28:00 -0400
committer: Tom Lane <[email protected]>
date : Wed, 11 Mar 2020 15:28:00 -0400
This coding technique is undesirable because (a) it leaks the FD for
the rest of the transaction if the SRF is not run to completion, and
(b) allocated FDs are a scarce resource, but multiple interleaved
uses of the relevant functions could eat many such FDs.
In v11 and later, a query such as "SELECT pg_ls_waldir() LIMIT 1"
yields a warning about the leaked FD, and the only reason there's
no warning in earlier branches is that fd.c didn't whine about such
leaks before commit 9cb7db3f0. Even disregarding the warning, it
wouldn't be too hard to run a backend out of FDs with careless use
of these SQL functions.
Hence, rewrite the function so that it reads the directory within
a single call, returning the results as a tuplestore rather than
via value-per-call mode.
There are half a dozen other built-in SRFs with similar problems,
but let's fix this one to start with, just to see if the buildfarm
finds anything wrong with the code.
In passing, fix bogus error report for stat() failure: it was
whining about the directory when it should be fingering the
individual file. Doubtless a copy-and-paste error.
Back-patch to v10 where this function was added.
Justin Pryzby, with cosmetic tweaks and test cases by me
Discussion: https://postgr.es/m/[email protected]
M src/backend/utils/adt/genfile.c
M src/test/regress/expected/misc_functions.out
M src/test/regress/sql/misc_functions.sql
Avoid duplicates in ALTER ... DEPENDS ON EXTENSION
commit : 3dfd2d6cd28a125edc4761eaefaa1193f111459d
author : Alvaro Herrera <[email protected]>
date : Wed, 11 Mar 2020 11:04:59 -0300
committer: Alvaro Herrera <[email protected]>
date : Wed, 11 Mar 2020 11:04:59 -0300
If the command is attempted for an extension that the object already
depends on, silently do nothing.
In particular, this means that if a database containing multiple such
entries is dumped, the restore will silently do the right thing and
record just the first one. (At least, in a world where pg_dump does
dump such entries -- which it doesn't currently, but it will.)
Backpatch to 9.6, where this kind of dependency was introduced.
Reviewed-by: Ibrar Ahmed, Tom Lane (offlist)
Discussion: https://postgr.es/m/[email protected]
M src/backend/catalog/pg_depend.c
M src/backend/commands/alter.c
M src/include/catalog/dependency.h
M src/test/modules/test_extensions/expected/test_extdepend.out
M src/test/modules/test_extensions/sql/test_extdepend.sql
Fix pg_dump/pg_restore to restore event triggers later.
commit : 475b061c867557499559227d743b332c257033a3
author : Tom Lane <[email protected]>
date : Mon, 9 Mar 2020 14:58:11 -0400
committer: Tom Lane <[email protected]>
date : Mon, 9 Mar 2020 14:58:11 -0400
Previously, event triggers were restored just after regular triggers
(and FK constraints, which are basically triggers). This is risky
since an event trigger, once installed, could interfere with subsequent
restore commands. Worse, because event triggers don't have any
particular dependencies on any post-data objects, a parallel restore
would consider them eligible to be restored the moment the post-data
phase starts, allowing them to also interfere with restoration of a
whole bunch of objects that would have been restored before them in
a serial restore. There's no way to completely remove the risk of a
misguided event trigger breaking the restore, since if nothing else
it could break other event triggers. But we can certainly push them
to later in the process to minimize the hazard.
To fix, tweak the RestorePass mechanism introduced by commit 3eb9a5e7c
so that event triggers are handled as part of the post-ACL processing
pass (renaming the "REFRESH" pass to "POST_ACL" to reflect its more
general use). This will cause them to restore after everything except
matview refreshes, which seems OK since matview refreshes really ought
to run in the post-restore state of the database. In a parallel
restore, event triggers and matview refreshes might be intermixed,
but that seems all right as well.
Also update the code and comments in pg_dump_sort.c so that its idea
of how things are sorted agrees with what actually happens due to
the RestorePass mechanism. This is mostly cosmetic: it'll affect the
order of objects in a dump's TOC, but not the actual restore order.
But not changing that would be quite confusing to somebody reading
the code.
Back-patch to all supported branches.
Fabrízio de Royes Mello, tweaked a bit by me
Discussion: https://postgr.es/m/CAFcNs+ow1hmFox8P--3GSdtwz-S3Binb6ZmoP6Vk+Xg=K6eZNA@mail.gmail.com
M src/bin/pg_dump/pg_backup_archiver.c
M src/bin/pg_dump/pg_backup_archiver.h
M src/bin/pg_dump/pg_dump_sort.c
Fix bug that causes to report waiting in PS display twice, in hot standby.
commit : e9c4eaacdd555c19ded1bdd8c03718eb33b7c3b6
author : Fujii Masao <[email protected]>
date : Tue, 10 Mar 2020 00:14:43 +0900
committer: Fujii Masao <[email protected]>
date : Tue, 10 Mar 2020 00:14:43 +0900
Previously "waiting" could appear twice via PS in case of lock conflict
in hot standby mode. Specifically this issue happend when the delay
in WAL application determined by max_standby_archive_delay and
max_standby_streaming_delay had passed but it took more than 500 msec
to cancel all the conflicting transactions. Especially we can observe this
easily by setting those delay parameters to -1.
The cause of this issue was that WaitOnLock() and
ResolveRecoveryConflictWithVirtualXIDs() added "waiting" to
the process title in that case. This commit prevents
ResolveRecoveryConflictWithVirtualXIDs() from reporting waiting
in case of lock conflict, to fix the bug.
Back-patch to all back branches.
Author: Masahiko Sawada
Reviewed-by: Fujii Masao
Discussion: https://postgr.es/m/CA+fd4k4mXWTwfQLS3RPwGr4xnfAEs1ysFfgYHvmmoUgv6Zxvmg@mail.gmail.com
M src/backend/storage/ipc/standby.c
Avoid assertion failure with targeted recovery in standby mode.
commit : b366e51729bb98506769b4f62bc3cf753d156464
author : Fujii Masao <[email protected]>
date : Mon, 9 Mar 2020 15:31:31 +0900
committer: Fujii Masao <[email protected]>
date : Mon, 9 Mar 2020 15:31:31 +0900
At the end of recovery, standby mode is turned off to re-fetch the last
valid record from archive or pg_wal. Previously, if recovery target was
reached and standby mode was turned off while the current WAL source
was stream, recovery could try to retrieve WAL file containing the last
valid record unexpectedly from stream even though not in standby mode.
This caused an assertion failure. That is, the assertion test confirms that
WAL file should not be retrieved from stream if standby mode is not true.
This commit moves back the current WAL source to archive if it's stream
even though not in standby mode, to avoid that assertion failure.
This issue doesn't cause the server to crash when built with assertion
disabled. In this case, the attempt to retrieve WAL file from stream not
in standby mode just fails. And then recovery tries to retrieve WAL file
from archive or pg_wal.
Back-patch to all supported branches.
Author: Kyotaro Horiguchi
Reviewed-by: Fujii Masao
Discussion: https://postgr.es/m/[email protected]
M src/backend/access/transam/xlog.c
Fix typo
commit : 5c2e2a2227ea60fbd7518ba357c2c0193fa62fea
author : Peter Eisentraut <[email protected]>
date : Sat, 7 Mar 2020 08:51:59 +0100
committer: Peter Eisentraut <[email protected]>
date : Sat, 7 Mar 2020 08:51:59 +0100
M src/backend/catalog/objectaddress.c
Fix the name of the first WAL segment file, in docs.
commit : 7a00f50ea63175447b7621bb94e8341bf1c34a9c
author : Fujii Masao <[email protected]>
date : Tue, 3 Mar 2020 12:22:04 +0900
committer: Fujii Masao <[email protected]>
date : Tue, 3 Mar 2020 12:22:04 +0900
Previously the documentation explains that WAL segment files
start at 000000010000000000000000. But the first WAL segment file
that initdb creates is 000000010000000000000001 not
000000010000000000000000. This change was caused by old
commit 8c843fff2d, but the documentation had not been updated
a long time.
Back-patch to all supported branches.
Author: Fujii Masao
Reviewed-by: David Zhang
Discussion: https://postgr.es/m/CAHGQGwHOmGe2OqGOmp8cOfNVDivq7dbV74L5nUGr+3eVd2CU2Q@mail.gmail.com
M doc/src/sgml/wal.sgml
Doc: correct thinko in pg_buffercache documentation.
commit : e2ff91b4c36c582c695a69864dd7b4c988202bfe
author : Tom Lane <[email protected]>
date : Fri, 28 Feb 2020 11:29:59 -0500
committer: Tom Lane <[email protected]>
date : Fri, 28 Feb 2020 11:29:59 -0500
Access to this module is granted to the pg_monitor role, not
pg_read_all_stats. (Given the view's performance impact,
it seems wise to be restrictive, so I think this was the
correct decision --- and anyway it was clearly intentional.)
Per bug #16279 from Philip Semanchuk.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/pgbuffercache.sgml
createdb: Fix quoting of --encoding, --lc-ctype and --lc-collate
commit : 240c7c75f3a9946509c9c6f9f5062b56cec627ae
author : Michael Paquier <[email protected]>
date : Thu, 27 Feb 2020 11:21:14 +0900
committer: Michael Paquier <[email protected]>
date : Thu, 27 Feb 2020 11:21:14 +0900
The original coding failed to properly quote those arguments, leading to
failures when using quotes in the values used. As the quoting can be
encoding-sensitive, the connection to the backend needs to be taken
before applying the correct quoting.
Author: Michael Paquier
Reviewed-by: Daniel Gustafsson
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 9.5
M src/bin/scripts/createdb.c
Doc: discourage use of partial indexes for poor-man's-partitioning.
commit : 1de4a823f9dea3bdc2dba2fe0b9b90c06cfd6fbb
author : Tom Lane <[email protected]>
date : Wed, 19 Feb 2020 18:52:18 -0500
committer: Tom Lane <[email protected]>
date : Wed, 19 Feb 2020 18:52:18 -0500
Creating a bunch of non-overlapping partial indexes is generally
a bad idea, so add an example saying not to do that.
Back-patch to v10. Before that, the alternative of using (real)
partitioning wasn't available, so that the tradeoff isn't quite
so clear cut.
Discussion: https://postgr.es/m/CAKVFrvFY-f7kgwMRMiPLbPYMmgjc8Y2jjUGK_Y0HVcYAmU6ymg@mail.gmail.com
M doc/src/sgml/indices.sgml
Fix typo
commit : 7d8346b2f42fc7311ccac08870c21a9763c43824
author : Peter Eisentraut <[email protected]>
date : Wed, 19 Feb 2020 20:52:42 +0100
committer: Peter Eisentraut <[email protected]>
date : Wed, 19 Feb 2020 20:52:42 +0100
Reported-by: Daniel Verite <[email protected]>
M src/common/unicode_norm.c
Fix confusion about event trigger vs. plain function in plpgsql.
commit : 6af63cf8c0b905f5c20cecff03b30ef52594e5f9
author : Tom Lane <[email protected]>
date : Wed, 19 Feb 2020 14:44:58 -0500
committer: Tom Lane <[email protected]>
date : Wed, 19 Feb 2020 14:44:58 -0500
The function hash table keys made by compute_function_hashkey() failed
to distinguish event-trigger call context from regular call context.
This meant that once we'd successfully made a hash entry for an event
trigger (either by validation, or by normal use as an event trigger),
an attempt to call the trigger function as a plain function would
find this hash entry and thereby bypass the you-can't-do-that check in
do_compile(). Thus we'd attempt to execute the function, leading to
strange errors or even crashes, depending on function contents and
server version.
To fix, add an isEventTrigger field to PLpgSQL_func_hashkey,
paralleling the longstanding infrastructure for regular triggers.
This fits into what had been pad space, so there's no risk of an ABI
break, even assuming that any third-party code is looking at these
hash keys. (I considered replacing isTrigger with a PLpgSQL_trigtype
enum field, but felt that that carried some API/ABI risk. Maybe we
should change it in HEAD though.)
Per bug #16266 from Alexander Lakhin. This has been broken since
event triggers were invented, so back-patch to all supported branches.
Discussion: https://postgr.es/m/[email protected]
M src/pl/plpgsql/src/pl_comp.c
M src/pl/plpgsql/src/plpgsql.h
M src/test/regress/expected/event_trigger.out
M src/test/regress/sql/event_trigger.sql
Fix mesurement of elapsed time during truncating heap in VACUUM.
commit : 79f344d52bd51611bff655a97a89c62118aaa5ee
author : Fujii Masao <[email protected]>
date : Wed, 19 Feb 2020 20:37:26 +0900
committer: Fujii Masao <[email protected]>
date : Wed, 19 Feb 2020 20:37:26 +0900
VACUUM may truncate heap in several batches. The activity report
is logged for each batch, and contains the number of pages in the table
before and after the truncation, and also the elapsed time during
the truncation. Previously the elapsed time reported in each batch was
the total elapsed time since starting the truncation until finishing
each batch. For example, if the truncation was processed dividing into
three batches, the second batch reported the accumulated time elapsed
during both first and second batches. This is strange and confusing
because the number of pages in the table reported together is not
total. Instead, each batch should report the time elapsed during
only that batch.
The cause of this issue was that the resource usage snapshot was
initialized only at the beginning of the truncation and was never
reset later. This commit fixes the issue by changing VACUUM so that
the resource usage snapshot is reset at each batch.
Back-patch to all supported branches.
Reported-by: Tatsuhito Kasahara
Author: Tatsuhito Kasahara
Reviewed-by: Masahiko Sawada, Fujii Masao
Discussion: https://postgr.es/m/CAP0=ZVJsf=NvQuy+QXQZ7B=ZVLoDV_JzsVC1FRsF1G18i3zMGg@mail.gmail.com
M src/backend/commands/vacuumlazy.c
Stop demanding that top xact must be seen before subxact in decoding.
commit : b448aa44170b6f67fdb34d4a85610949f15cef96
author : Amit Kapila <[email protected]>
date : Wed, 12 Feb 2020 12:00:01 +0530
committer: Amit Kapila <[email protected]>
date : Wed, 12 Feb 2020 12:00:01 +0530
Manifested as
ERROR: subtransaction logged without previous top-level txn record
this check forbids legit behaviours like
- First xl_xact_assignment record is beyond reading, i.e. earlier
restart_lsn.
- After restart_lsn there is some change of a subxact.
- After that, there is second xl_xact_assignment (for another subxact)
revealing the relationship between top and first subxact.
Such a transaction won't be streamed anyway because we hadn't seen it in
full. Saying for sure whether xact of some record encountered after
the snapshot was deserialized can be streamed or not requires to know
whether it wrote something before deserialization point --if yes, it
hasn't been seen in full and can't be decoded. Snapshot doesn't have such
info, so there is no easy way to relax the check.
Reported-by: Hsu, John
Diagnosed-by: Arseny Sher
Author: Arseny Sher, Amit Kapila
Reviewed-by: Amit Kapila, Dilip Kumar
Backpatch-through: 9.5
Discussion: https://postgr.es/m/[email protected]
M contrib/test_decoding/Makefile
A contrib/test_decoding/expected/subxact_without_top.out
A contrib/test_decoding/specs/subxact_without_top.spec
M src/backend/replication/logical/reorderbuffer.c
Teach pg_dump to dump comments on RLS policy objects.
commit : f9d7bb68da30b9b91e7ac440103a3e5ddeaf412a
author : Tom Lane <[email protected]>
date : Mon, 17 Feb 2020 18:40:02 -0500
committer: Tom Lane <[email protected]>
date : Mon, 17 Feb 2020 18:40:02 -0500
This was unaccountably omitted in the original RLS patch.
The SQL syntax is basically the same as for comments on triggers,
so crib code from dumpTrigger().
Per report from Marc Munro. Back-patch to all supported branches.
Discussion: https://postgr.es/m/[email protected]
M src/bin/pg_dump/pg_dump.c
Add description about LogicalRewriteTruncate wait event into document.
commit : 1beab076cefe70d90f839583e880bb97af1fa6f5
author : Fujii Masao <[email protected]>
date : Mon, 17 Feb 2020 15:33:32 +0900
committer: Fujii Masao <[email protected]>
date : Mon, 17 Feb 2020 15:33:32 +0900
Back-patch to v10 where commit 249cf070e3 introduced
LogicalRewriteTruncate wait event.
Author: Fujii Masao
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/monitoring.sgml
Doc: fix old oversights in GRANT/REVOKE documentation.
commit : a56c495873c8a507534c3a98217664d2684497a5
author : Tom Lane <[email protected]>
date : Wed, 12 Feb 2020 14:13:13 -0500
committer: Tom Lane <[email protected]>
date : Wed, 12 Feb 2020 14:13:13 -0500
The GRANTED BY clause in GRANT/REVOKE ROLE has been there since 2005
but was never documented. I'm not sure now whether that was just an
oversight or was intentional (given the limited capability of the
option). But seeing that pg_dumpall does emit code that uses this
option, it seems like not documenting it at all is a bad idea.
Also, when we upgraded the syntax to allow CURRENT_USER/SESSION_USER
as the privilege recipient, the role form of GRANT was incorrectly
not modified to show that, and REVOKE's docs weren't touched at all.
Although I'm not that excited about GRANTED BY, the other oversight
seems serious enough to justify a back-patch.
Discussion: https://postgr.es/m/[email protected]
M doc/src/sgml/ref/grant.sgml
M doc/src/sgml/ref/revoke.sgml
Document the pg_upgrade -j/--jobs option as taking an argument
commit : 9193627732da5ac6b773b242ce0be8ce7e0031ab
author : Peter Eisentraut <[email protected]>
date : Tue, 11 Feb 2020 23:47:36 +0100
committer: Peter Eisentraut <[email protected]>
date : Tue, 11 Feb 2020 23:47:36 +0100
M doc/src/sgml/ref/pgupgrade.sgml
M src/bin/pg_upgrade/option.c