Michael Paquier [Tue, 23 Jul 2024 08:59:20 +0000 (17:59 +0900)]
Use more consistently int64 for page numbers in SLRU-related code
clog.c, async.c and predicate.c included some SLRU page numbers still
handled as 4-byte integers, while int64 should be used for this purpose.
These holes have been introduced in
4ed8f0913bfd, that has introduced
the use of 8-byte integers for SLRU page numbers, still forgot about the
code paths updated by this commit.
Reported-by: Noah Misch
Author: Aleksander Alekseev, Michael Paquier
Discussion: https://postgr.es/m/
20240626002747[email protected]
Backpatch-through: 17
Michael Paquier [Tue, 23 Jul 2024 07:55:09 +0000 (16:55 +0900)]
Improve comments in slru.{c,h} about segment name format
slru.h described incorrectly how SLRU segment names are formatted
depending on the segment number and if long or short segment names are
used. This commit closes the gap with a better description, fitting
with the reality.
Reported-by: Noah Misch
Author: Aleksander Alekseev
Discussion: https://postgr.es/m/
20240626002747[email protected]
Backpatch-through: 17
Tom Lane [Mon, 22 Jul 2024 23:43:12 +0000 (19:43 -0400)]
Doc: improve description of plpgsql's FETCH and MOVE commands.
We were not being clear about which variants of the "direction"
clause are permitted in MOVE. Also, the text seemed to be
written with only the FETCH/MOVE NEXT case in mind, so it
didn't apply very well to other variants.
Also, document that "MOVE count IN cursor" only works if count
is a constant. This is not the whole truth, because some other
cases such as a parenthesized expression will also work, but
we want to push people to use "MOVE FORWARD count" instead.
The constant case is enough to cover what we allow in plain SQL,
and that seems sufficient to claim support for.
Update a comment in pl_gram.y claiming that we don't document
that point.
Per gripe from Philipp Salvisberg.
Discussion: https://postgr.es/m/
172155553388.702.
7932496598218792085@wrigleys.postgresql.org
Melanie Plageman [Mon, 22 Jul 2024 20:32:43 +0000 (16:32 -0400)]
Revert "Test that vacuum removes tuples older than OldestXmin"
This reverts commit
80c34692e8e674e3b2f150f248ef2002ae2ac3a7.
This test proved to be unstable on the buildfarm, timing out before the
standby could catch up on 32-bit machines where more rows were required
and failing to reliably trigger multiple index vacuum rounds on 64-bit
machines where fewer rows should be required.
Because the instability is only known to be present on versions of
Postgres with TIDStore used for dead TID storage by vacuum, this is only
being reverted on master and REL_17_STABLE.
As having this coverage may be valuable, there is a discussion on the
thread of possible ways to stabilize the test. If that happens, a fixed
test can be committed again.
Backpatch-through: 17
Reported-by: Tom Lane
Discussion: https://postgr.es/m/614152.
1721580711%40sss.pgh.pa.us
Robert Haas [Mon, 22 Jul 2024 19:32:43 +0000 (15:32 -0400)]
Initialize wal_level in the initial checkpoint record.
As per Coverity and Tom Lane, commit
402b586d0 (back-patched to v17
as
2b5819e2b) forgot to initialize this new structure member in this
code path.
Robert Haas [Wed, 17 Jul 2024 18:53:00 +0000 (14:53 -0400)]
Add missing call to ConditionVariableCancelSleep().
After calling ConditionVariableSleep() or ConditionVariableTimedSleep()
one or more times, code is supposed to call ConditionVariableCancelSleep()
to remove itself from the waitlist. This code neglected to do so.
As far as I know, that had no observable consequences, but let's make
the code correct.
Discussion: http://postgr.es/m/CA+TgmoYW8eR+KN6zhVH0sin7QH6AvENqw_bkN-bB4yLYKAnsew@mail.gmail.com
Alvaro Herrera [Mon, 22 Jul 2024 10:49:57 +0000 (12:49 +0200)]
postgres_fdw: Split out the query_cancel test to its own file
This allows us to skip it in Cygwin, where it's reportedly flaky because
of platform bugs or something.
Backpatch to 17, where the test was introduced by commit
2466d6654f85.
Reported-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/
e4d0cb33-6be5-e4d5-ae49-
9eac3ff2b005@gmail.com
Andres Freund [Sat, 20 Jul 2024 20:51:08 +0000 (13:51 -0700)]
meson: Add dependency lookups via names used by cmake
Particularly on windows it's useful to look up dependencies via cmake, instead
of pkg-config. Meson supports doing so. Unfortunately the dependency names
used by various projects often differs between their pkg-config and cmake
files.
This would look a lot neater if we could rely on meson >= 0.60.0...
Reviewed-by: Tristan Partin <[email protected]>
Discussion: https://postgr.es/m/
20240709065101[email protected]
Backpatch: 16-, where meson support was added
Andres Freund [Sat, 20 Jul 2024 20:51:08 +0000 (13:51 -0700)]
meson: Add support for detecting ossp-uuid without pkg-config
This is necessary as ossp-uuid on windows installs neither a pkg-config nor a
cmake dependency information. Nor is there another supported uuid
implementation available on windows.
Reported-by: Dave Page <[email protected]>
Reviewed-by: Tristan Partin <[email protected]>
Discussion: https://postgr.es/m/
20240709065101[email protected]
Backpatch: 16-, where meson support was added
Andres Freund [Sat, 20 Jul 2024 20:51:08 +0000 (13:51 -0700)]
meson: Add support for detecting gss without pkg-config
This is required as MIT Kerberos does provide neither pkg-config nor cmake
dependency information on windows.
Reported-by: Dave Page <[email protected]>
Reviewed-by: Tristan Partin <[email protected]>
Discussion: https://postgr.es/m/
20240709065101[email protected]
Backpatch: 16-, where meson support was added
Andres Freund [Sat, 20 Jul 2024 20:51:08 +0000 (13:51 -0700)]
meson: Add missing argument to gssapi.h check
These were missing since the initial introduction of the meson based build, in
e6927270cd18. As-is this is unlikely to cause an issue, but a future commit
will add support for detecting gssapi without use of dependency(), which could
fail due to this.
Discussion: https://postgr.es/m/
20240708225659[email protected]
Backpatch: 16-, where the meson based build was added
Tom Lane [Sat, 20 Jul 2024 17:40:15 +0000 (13:40 -0400)]
Correctly check updatability of columns targeted by INSERT...DEFAULT.
If a view has some updatable and some non-updatable columns, we failed
to verify updatability of any columns for which an INSERT or UPDATE
on the view explicitly specifies a DEFAULT item (unless the view has
a declared default for that column, which is rare anyway, and one
would almost certainly not write one for a non-updatable column).
This would lead to an unexpected "attribute number N not found in
view targetlist" error rather than the intended error.
Per bug #18546 from Alexander Lakhin. This bug is old, so back-patch
to all supported branches.
Discussion: https://postgr.es/m/18546-
84a292e759a9361d@postgresql.org
Nathan Bossart [Fri, 19 Jul 2024 16:52:32 +0000 (11:52 -0500)]
Add overflow checks to money type.
None of the arithmetic functions for the the money type handle
overflow. This commit introduces several helper functions with
overflow checking and makes use of them in the money type's
arithmetic functions.
Fixes bug #18240.
Reported-by: Alexander Lakhin
Author: Joseph Koshakow
Discussion: https://postgr.es/m/18240-
c5da758d7dc1ecf0%40postgresql.org
Discussion: https://postgr.es/m/CAAvxfHdBPOyEGS7s%2Bxf4iaW0-cgiq25jpYdWBqQqvLtLe_t6tw%40mail.gmail.com
Backpatch-through: 12
Melanie Plageman [Fri, 19 Jul 2024 14:40:42 +0000 (10:40 -0400)]
Test that vacuum removes tuples older than OldestXmin
If vacuum fails to prune a tuple killed before OldestXmin, it will
decide to freeze its xmax and later error out in pre-freeze checks.
Add a test reproducing this scenario to the recovery suite which creates
a table on a primary, updates the table to generate dead tuples for
vacuum, and then, during the vacuum, uses a replica to force
GlobalVisState->maybe_needed on the primary to move backwards and
precede the value of OldestXmin set at the beginning of vacuuming the
table.
This commit is separate from the fix in case there are test stability
issues.
Author: Melanie Plageman
Reviewed-by: Peter Geoghegan
Discussion: https://postgr.es/m/CAAKRu_apNU2MPBK96V%2BbXjTq0RiZ-%3DA4ZTaysakpx9jxbq1dbQ%40mail.gmail.com
Melanie Plageman [Fri, 19 Jul 2024 14:40:39 +0000 (10:40 -0400)]
Ensure vacuum removes all visibly dead tuples older than OldestXmin
If vacuum fails to remove a tuple with xmax older than
VacuumCutoffs->OldestXmin and younger than GlobalVisState->maybe_needed,
it may attempt to freeze the tuple's xmax and then ERROR out in
pre-freeze checks with "cannot freeze committed xmax".
Fix this by having vacuum always remove tuples older than OldestXmin.
It is possible for GlobalVisState->maybe_needed to precede OldestXmin if
maybe_needed is forced to go backward while vacuum is running. This can
happen if a disconnected standby with a running transaction older than
VacuumCutoffs->OldestXmin reconnects to the primary after vacuum
initially calculates GlobalVisState and OldestXmin.
In back branches starting with 14, the first version using
GlobalVisState, failing to remove tuples older than OldestXmin during
pruning caused vacuum to infinitely loop in lazy_scan_prune(), as
investigated on this [1] thread. After
1ccc1e05ae removed the retry loop
in lazy_scan_prune() and stopped comparing tuples to OldestXmin, the
hang could no longer happen, but we could still attempt to freeze dead
tuples with xmax older than OldestXmin -- resulting in an ERROR.
Fix this by always removing dead tuples with xmax older than
VacuumCutoffs->OldestXmin. This is okay because the standby won't replay
the tuple removal until the tuple is removable. Thus, the worst that can
happen is a recovery conflict.
[1] https://postgr.es/m/
20240415173913.4zyyrwaftujxthf2%40awork3.anarazel.de#
1b216b7768b5bd577a3d3d51bd5aadee
Back-patch through 14
Author: Melanie Plageman
Reviewed-by: Peter Geoghegan, Robert Haas, Andres Freund, Heikki Linnakangas, and Noah Misch
Discussion: https://postgr.es/m/CAAKRu_bDD7oq9ZwB2OJqub5BovMG6UjEYsoK2LVttadjEqyRGg%40mail.gmail.com
Heikki Linnakangas [Fri, 19 Jul 2024 07:27:06 +0000 (10:27 +0300)]
Move resowner from common JitContext to LLVM specific
Only the LLVM specific code uses it since resource owners were made
extensible in commit
b8bff07daa85c837a2747b4d35cd5a27e73fb7b2. This is
new in v17, so backpatch there to keep the branches from diverging
just yet.
Author: Andreas Karlsson <
[email protected]>
Discussion: https://www.postgresql.org/message-id/
fd3a2a00-6605-4e30-a118-
48418b478e6e@proxel.se
Etsuro Fujita [Fri, 19 Jul 2024 04:15:01 +0000 (13:15 +0900)]
postgres_fdw: Avoid "cursor can only scan forward" error.
Commit
d844cd75a disallowed rewind in a non-scrollable cursor to resolve
anomalies arising from such a cursor operation. However, this failed to
take into account the assumption in postgres_fdw that when rescanning a
foreign relation, it can rewind the cursor created for scanning the
foreign relation without specifying the SCROLL option, regardless of its
scrollability, causing this error when it tried to do such a rewind in a
non-scrollable cursor. Fix by modifying postgres_fdw to instead
recreate the cursor, regardless of its scrollability, when rescanning
the foreign relation. (If we had a way to check its scrollability, we
could improve this by rewinding it if it is scrollable and recreating it
if not, but we do not have it, so this commit modifies it to recreate it
in any case.)
Per bug #17889 from Eric Cyr. Devrim Gunduz also reported this problem.
Back-patch to v15 where that commit enforced the prohibition.
Reviewed by Tom Lane.
Discussion: https://postgr.es/m/17889-
e8c39a251d258dda%40postgresql.org
Discussion: https://postgr.es/m/
b415ac3255f8352d1ea921cf3b7ba39e0587768a.camel%40gunduz.org
Michael Paquier [Fri, 19 Jul 2024 01:21:21 +0000 (10:21 +0900)]
Propagate query IDs of utility statements in functions
For utility statements defined within a function, the query tree is
copied to a PlannedStmt as utility commands do not require planning.
However, the query ID was missing from the information passed down.
This leads to plugins relying on the query ID like pg_stat_statements to
not be able to track utility statements within function calls. Tests
are added to check this behavior, depending on pg_stat_statements.track.
This is an old bug. Now, query IDs for utilities are compiled using
their parsed trees rather than the query string since v16
(
3db72ebcbe20), leading to less bloat with utilities, so backpatch down
only to this version.
Author: Anthonin Bonnefoy
Discussion: https://postgr.es/m/CAO6_XqrGp-uwBqi3vBPLuRULKkddjC7R5QZCgsFren=8E+m2Sg@mail.gmail.com
Backpatch-through: 16
Robert Haas [Thu, 18 Jul 2024 16:09:48 +0000 (12:09 -0400)]
Do not summarize WAL if generated with wal_level=minimal.
To do this, we must include the wal_level in the first WAL record
covered by each summary file; so add wal_level to struct Checkpoint
and the payload of XLOG_CHECKPOINT_REDO and XLOG_END_OF_RECOVERY.
This, in turn, requires bumping XLOG_PAGE_MAGIC and, since the
Checkpoint is also stored in the control file, also
PG_CONTROL_VERSION. It's not great to do that so late in the release
cycle, but the alternative seems to ship v17 without robust
protections against this scenario, which could result in corrupted
incremental backups.
A side effect of this patch is that, when a server with
wal_level=replica is started with summarize_wal=on for the first time,
summarization will no longer begin with the oldest WAL that still
exists in pg_wal, but rather from the first checkpoint after that.
This change should be harmless, because a WAL summary for a partial
checkpoint cycle can never make an incremental backup possible when
it would otherwise not have been.
Report by Fujii Masao. Patch by me. Review and/or testing by Jakub
Wartak and Fujii Masao.
Discussion: http://postgr.es/m/
6e30082e-041b-4e31-9633-
95a66de76f5d@oss.nttdata.com
Tom Lane [Wed, 17 Jul 2024 19:17:52 +0000 (15:17 -0400)]
Doc: fix minor syntax error in example.
The CREATE TABLE option is GENERATED BY DEFAULT *AS* IDENTITY.
Per bug #18543 from Ondřej Navrátil. Seems to have crept in
in
a37bb7c13, so back-patch to v17 where that was added.
Discussion: https://postgr.es/m/18543-
93c721689f9928e8@postgresql.org
Nathan Bossart [Wed, 17 Jul 2024 15:51:00 +0000 (10:51 -0500)]
Use PqMsg_* macros in more places.
Commit
f4b54e1ed9, which introduced macros for protocol characters,
missed updating a few places. It also did not introduce macros for
messages sent from parallel workers to their leader processes.
This commit adds a new section in protocol.h for those.
Author: Aleksander Alekseev
Discussion: https://postgr.es/m/CAJ7c6TNTd09AZq8tGaHS3LDyH_CCnpv0oOz2wN1dGe8zekxrdQ%40mail.gmail.com
Backpatch-through: 17
Andrew Dunstan [Wed, 17 Jul 2024 14:35:50 +0000 (10:35 -0400)]
Avoid error in recovery test if history file is not yet present
Error was detected when testing use of libpq sessions instead of psql
for polling queries.
Discussion: https://postgr.es/m/
e86b6d2d-20d8-4ac9-9a98-
165fff7db886@dunslane.net
Backpatch to all live branches
Amit Langote [Wed, 17 Jul 2024 08:10:57 +0000 (17:10 +0900)]
SQL/JSON: Rethink
c2d93c3802b
This essentially reverts
c2d93c3802b except tests. The problem with
c2d93c3802b was that it only changed the casting behavior for types
with typmod, and had coding issues noted in the post-commit review.
This commit changes coerceJsonFuncExpr() to use assignment-level casts
instead of explicit casts to coerce the result of JSON constructor
functions to the specified or the default RETURNING type. Using
assignment-level casts fixes the problem that using explicit casts was
leading to the wrong typmod / length coercion behavior -- truncating
results longer than the specified length instead of erroring out --
which
c2d93c3802b aimed to solve.
That restricts the set of allowed target types to string types, the
same set that's currently allowed.
Discussion: https://postgr.es/m/
202406291824[email protected]
Jeff Davis [Tue, 16 Jul 2024 22:41:22 +0000 (15:41 -0700)]
When creating materialized views, use REFRESH to load data.
Previously, CREATE MATERIALIZED VIEW ... WITH DATA populated the MV
the same way as CREATE TABLE ... AS.
Instead, reuse the REFRESH logic, which locks down security-restricted
operations and restricts the search_path. This reduces the chance that
a subsequent refresh will fail.
Reported-by: Noah Misch
Backpatch-through: 17
Discussion: https://postgr.es/m/
20240630222344[email protected]
Amit Langote [Tue, 16 Jul 2024 05:11:10 +0000 (14:11 +0900)]
SQL/JSON: Fix a paragraph in JSON_TABLE documentation
Using <replaceable>text</replaceable> inside parantheses is not a
common or good style, so rephrase a sentence to avoid that style.
Also rephrase the text in that paragraph a bit while at it.
Reported-by: Marcos Pegoraro <[email protected]>
Author: Jian He <
[email protected]>
Reviewed-by: Daniel Gustafsson <[email protected]>
Reviewed-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/CAB-JLwZqH3Yec6Kz-4-+pa0ZG9QJBsxjJZwYcMZYzEDR_fXnKw@mail.gmail.com
Andres Freund [Mon, 15 Jul 2024 22:17:37 +0000 (15:17 -0700)]
Fix bad indentation introduced in
43cd30bcd1c
Oops.
Reported-by: Nathan Bossart <[email protected]>
Discussion: https://postgr.es/m/ZpVZB9rH5tHllO75@nathan
Backpatch: 12-, like
43cd30bcd1c
Jeff Davis [Mon, 15 Jul 2024 19:08:00 +0000 (12:08 -0700)]
Add missing RestrictSearchPath() calls.
Reported-by: Noah Misch
Backpatch-through: 17
Discussion: https://postgr.es/m/
20240630222344[email protected]
Andres Freund [Mon, 15 Jul 2024 16:26:01 +0000 (09:26 -0700)]
ci: Upgrade to Debian Bookworm
Bullseye is getting long in the tooth, upgrade to the current stable version.
Backpatch to all versions with CI support, we don't want to generate CI images
for multiple Debian versions.
Author: Nazir Bilal Yavuz <
[email protected]>
Discussion: https://postgr.es/m/CAN55FZ0fY5EFHXLKCO_%3Dp4pwFmHRoVom_qSE_7B48gpchfAqzw%40mail.gmail.com
Backpatch: 15-, where CI was added
Andres Freund [Mon, 15 Jul 2024 16:26:01 +0000 (09:26 -0700)]
Fix type confusion in guc_var_compare()
Before this change guc_var_compare() cast the input arguments to
const struct config_generic *. That's not quite right however, as the input
on one side is often just a char * on one side.
Instead just use char *, the first field in config_generic.
This fixes a -Warray-bounds warning with some versions of gcc. While the
warning is only known to be triggered for <= 15, the issue the warning points
out seems real, so apply the fix everywhere.
Author: Nazir Bilal Yavuz <
[email protected]>
Reported-by: Erik Rijkers <[email protected]>
Suggested-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/
a74a1a0d-0fd2-3649-5224-
4f754e8f91aa%40xs4all.nl
Tom Lane [Mon, 15 Jul 2024 15:59:43 +0000 (11:59 -0400)]
Doc: minor improvements for plpgsql "Transaction Management" section.
Point out that savepoint commands cannot be issued in PL/pgSQL,
and suggest that exception blocks can usually be used instead.
Add a caveat to the discussion of cursor loops vs. transactions,
pointing out that any locks taken by the cursor query will be lost
at COMMIT. This is implicit in what's already said, but the existing
text leaves the distinct impression that the auto-hold behavior is
transparent, which it's not really.
Per a couple of recent complaints (one unsigned, and one in bug #18531
from Dzmitry Jachnik). Back-patch to v17, just so this makes it into
current docs in less than a year-and-a-half.
Discussion: https://postgr.es/m/
172076354433.736586.
14347210271966220018@wrigleys.postgresql.org
Discussion: https://postgr.es/m/18531-
c6dddd33b8555fd2@postgresql.org
Heikki Linnakangas [Mon, 15 Jul 2024 07:21:16 +0000 (10:21 +0300)]
Use atomics to avoid locking in InjectionPointRun()
This allows using injection points without having a PGPROC, like early
at backend startup, or in the postmaster.
The injection points facility is new in v17, so backpatch there.
Reviewed-by: Michael Paquier <[email protected]>
Disussion: https://www.postgresql.org/message-id/
4317a7f7-8d24-435e-9e49-
29b72a3dc418@iki.fi
Fujii Masao [Mon, 15 Jul 2024 05:09:30 +0000 (14:09 +0900)]
Fix unstable tests in partition_merge.sql and partition_split.sql.
The tests added by commit
c086896625 were unstable due to
missing schema names when checking pg_tables and pg_indexes.
Backpatch to v17.
Reported by buildfarm.
Fujii Masao [Mon, 15 Jul 2024 04:11:51 +0000 (13:11 +0900)]
Fix tablespace handling in MERGE/SPLIT partition commands.
As commit
ca4103025d stated, new partitions without a specified tablespace
should inherit the parent relation's tablespace. However, previously,
ALTER TABLE MERGE PARTITIONS and ALTER TABLE SPLIT PARTITION commands
always created new partitions in the default tablespace, ignoring
the parent's tablespace. This commit ensures new partitions inherit
the parent's tablespace.
Backpatch to v17 where these commands were introduced.
Author: Fujii Masao
Reviewed-by: Masahiko Sawada
Discussion: https://postgr.es/m/
abaf390b-3320-40a5-8815-
ef476db5cfe7@oss.nttdata.com
Tom Lane [Sun, 14 Jul 2024 17:49:46 +0000 (13:49 -0400)]
Avoid unhelpful internal error for incorrect recursive-WITH queries.
checkWellFormedRecursion would issue "missing recursive reference"
if a WITH RECURSIVE query contained a single self-reference but
that self-reference was inside a top-level WITH, ORDER BY, LIMIT,
etc, rather than inside the second arm of the UNION as expected.
We already intended to throw more-on-point errors for such cases,
but those error checks must be done before examining the UNION arm
in order to have the desired results. So this patch need only
move some code (and improve the comments).
Per bug #18536 from Alexander Lakhin. Back-patch to all supported
branches.
Discussion: https://postgr.es/m/18536-
0a342ec07901203e@postgresql.org
Andrew Dunstan [Sat, 13 Jul 2024 20:19:10 +0000 (16:19 -0400)]
Use correct collate.windows.win1252.out
I inadvertently missed backporting this to Release 17 from commit
291c420747
per offlist reminder from Alexander Lakhin.
Noah Misch [Sat, 13 Jul 2024 15:09:33 +0000 (08:09 -0700)]
Fix new assertion for MERGE view_name ... DO NOTHING.
Such queries don't expand automatically updatable views, and ModifyTable
uses the wholerow attribute unconditionally. The user-visible behavior
is fine, so change to more-specific assertions. Commit
d5f788b41dc2cbdde6e7694c70dda54d829a5ed5 added the wrong assertion.
Back-patch to v17, where commit
5f2e179bd31e5f5803005101eb12a8d7bf8db8f3
introduced MERGE view_name.
Reported by Alexander Lakhin.
Discussion: https://postgr.es/m/
e4b40a88-c134-6926-3196-
bc4501cb87a2@gmail.com
Noah Misch [Sat, 13 Jul 2024 15:09:33 +0000 (08:09 -0700)]
Don't lose partitioned table reltuples=0 after relhassubclass=f.
ANALYZE sets relhassubclass=f when a partitioned table no longer has
partitions. An ANALYZE doing that proceeded to apply the inplace update
of pg_class.reltuples to the old pg_class tuple instead of the new
tuple, losing that reltuples=0 change if the ANALYZE committed.
Non-partitioning inheritance trees were unaffected. Back-patch to v14,
where commit
375aed36ad83f0e021e9bdd3a0034c0c992c66dc introduced
maintenance of partitioned table pg_class.reltuples.
Reported by Alexander Lakhin.
Discussion: https://postgr.es/m/
a295b499-dcab-6a99-c06e-
01cf60593344@gmail.com
Andrew Dunstan [Fri, 12 Jul 2024 22:29:15 +0000 (18:29 -0400)]
Make sure to run pg_isready on correct port
The current code can have pg_isready unexpectedly succeed if there is a
server running on the default port. To avoid this we delay running the
test until after a node has been created but before it starts, and then
use that node's port, so we are fairly sure there is nothing running on
the port.
Backpatch to all live branches.
Thomas Munro [Sat, 13 Jul 2024 02:59:46 +0000 (14:59 +1200)]
Fix lost Windows socket EOF events.
Winsock only signals an FD_CLOSE event once if the other end of the
socket shuts down gracefully. Because each WaitLatchOrSocket() call
constructs and destroys a new event handle every time, with unlucky
timing we can lose it and hang. We get away with this only if the other
end disconnects non-gracefully, because FD_CLOSE is repeatedly signaled
in that case.
To fix this design flaw in our Windows socket support fundamentally,
we'd probably need to rearchitect it so that a single event handle
exists for the lifetime of a socket, or switch to completely different
multiplexing or async I/O APIs. That's going to be a bigger job
and probably wouldn't be back-patchable.
This brute force kludge closes the race by explicitly polling with
MSG_PEEK before sleeping.
Back-patch to all supported releases. This should hopefully clear up
some random build farm and CI hang failures reported over the years. It
might also allow us to try using graceful shutdown in more places again
(reverted in commit
29992a6) to fix instability in the transmission of
FATAL error messages, but that isn't done by this commit.
Reported-by: Tom Lane <[email protected]>
Tested-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/176008.
1715492071%40sss.pgh.pa.us
Alvaro Herrera [Fri, 12 Jul 2024 11:44:19 +0000 (13:44 +0200)]
Add ORDER BY to new test query
Per buildfarm.
Alvaro Herrera [Fri, 12 Jul 2024 10:54:01 +0000 (12:54 +0200)]
Fix ALTER TABLE DETACH for inconsistent indexes
When a partitioned table has an index that doesn't support a constraint,
but a partition has an equivalent index that does, then a DETACH
operation would misbehave: a crash in assertion-enabled systems (because
we fail to find the constraint in the parent that we expect to), or a
broken coninhcount value (-1) in production systems (because we blindly
believe that we've successfully detached the parent).
While we should reject an ATTACH of a partition with such an index, we
have failed to do so in existing releases, so adding an error in stable
releases might break the (unlikely) existing applications that rely on
this behavior. At this point I don't even want to reject them in
master, because it'd break pg_upgrade if such databases exist, and there
would be no easy way to fix existing databases without expensive index
rebuilds.
(Later on we could add ALTER TABLE ... ADD CONSTRAINT USING INDEX to
partitioned tables, which would allow the user to fix such patterns. At
that point we could add more restrictions to prevent the problem from
its root.)
Also, add a test case that leaves one table in this condition, so that
we can verify that pg_upgrade continues to work if we later decide to
change the policy on the master branch.
Backpatch to all supported branches.
Co-authored-by: Tender Wang <[email protected]>
Reported-by: Alexander Lakhin <[email protected]>
Reviewed-by: Tender Wang <[email protected]>
Reviewed-by: Michael Paquier <[email protected]>
Discussion: https://postgr.es/m/18500-
62948b6fe5522f56@postgresql.org
Amit Kapila [Fri, 12 Jul 2024 04:05:46 +0000 (09:35 +0530)]
Fix unstable test in 040_pg_createsubscriber.
The slot synchronization failed because the local slot's (created during
slot synchronization) catalog_xmin on standby is ahead of remote slot.
This happens because the INSERT before slot synchronization results in the
generation of a new xid that could be replicated to the standby. Now
before the xmin of the physical slot on the primary catches up via
hot_standby_feedback, the test has created a logical slot that got some
prior value of catalog_xmin.
To fix this we could try to ensure that the physical slot's catalog_xmin
is caught up to latest value before creating a logical slot but we took a
simpler path to move the INSERT after synchronizing the logical slot.
Reported-by: Alexander Lakhin as per buildfarm
Diagnosed-by: Amit Kapila, Hou Zhijie, Alexander Lakhin
Author: Hou Zhijie
Backpatch-through: 17
Discussion: https://postgr.es/m/
bde6ac67-69cc-c104-5ab6-
dd4f5deadf24@gmail.com
Masahiko Sawada [Thu, 11 Jul 2024 13:48:21 +0000 (22:48 +0900)]
Fix possibility of logical decoding partial transaction changes.
When creating and initializing a logical slot, the restart_lsn is set
to the latest WAL insertion point (or the latest replay point on
standbys). Subsequently, WAL records are decoded from that point to
find the start point for extracting changes in the
DecodingContextFindStartpoint() function. Since the initial
restart_lsn could be in the middle of a transaction, the start point
must be a consistent point where we won't see the data for partial
transactions.
Previously, when not building a full snapshot, serialized snapshots
were restored, and the SnapBuild jumps to the consistent state even
while finding the start point. Consequently, the slot's restart_lsn
and confirmed_flush could be set to the middle of a transaction. This
could lead to various unexpected consequences. Specifically, there
were reports of logical decoding decoding partial transactions, and
assertion failures occurred because only subtransactions were decoded
without decoding their top-level transaction until decoding the commit
record.
To resolve this issue, the changes prevent restoring the serialized
snapshot and jumping to the consistent state while finding the start
point.
On v17 and HEAD, a flag indicating whether snapshot restores should be
skipped has been added to the SnapBuild struct, and SNAPBUILD_VERSION
has been bumpded.
On backbranches, the flag is stored in the LogicalDecodingContext
instead, preserving on-disk compatibility.
Backpatch to all supported versions.
Reported-by: Drew Callahan
Reviewed-by: Amit Kapila, Hayato Kuroda
Discussion: https://postgr.es/m/
2444AA15-D21B-4CCE-8052-
52C7C2DAFE5C%40amazon.com
Backpatch-through: 12
Tom Lane [Thu, 11 Jul 2024 00:15:52 +0000 (20:15 -0400)]
Make our back branches compatible with libxml2 2.13.x.
This back-patches HEAD commits
066e8ac6e,
6082b3d5d,
e7192486d,
and
896cd266f into supported branches. Changes:
* Use xmlAddChildList not xmlAddChild in XMLSERIALIZE
(affects v16 and up only). This was a flat-out coding mistake
that we got away with due to lax checking in previous versions
of xmlAddChild.
* Use xmlParseInNodeContext not xmlParseBalancedChunkMemory.
This is to dodge a bug in xmlParseBalancedChunkMemory in libxm2
releases 2.13.0-2.13.2. While that bug is now fixed upstream and
will probably never be seen in any production-oriented distro, it is
currently a problem on some more-bleeding-edge-friendly platforms.
* Suppress "chunk is not well balanced" errors from libxml2,
unless it is the only error. This eliminates an error-reporting
discrepancy between 2.13 and older releases. This error is
almost always redundant with previous errors, if not flat-out
inappropriate, which is why 2.13 changed the behavior and why
nobody's likely to miss it.
Erik Wienhold and Tom Lane, per report from Frank Streitzig.
Discussion: https://postgr.es/m/trinity-
b0161630-d230-4598-9ebc-
7a23acdb37cb-
1720186432160@3c-app-gmx-bap25
Discussion: https://postgr.es/m/trinity-
361ba18b-541a-4fe7-bc63-
655ae3a7d599-
1720259822452@3c-app-gmx-bs01
Andrew Dunstan [Wed, 10 Jul 2024 13:53:47 +0000 (09:53 -0400)]
Use diff's --strip-trailing-cr flag where appropriate on Windows
Test result files might be checked out using Unix or Windows style line
endings, depening on git flags, so on Windows we use the
--strip-trailing-cr flag to tell diff to ignore line endings
differences.
The flag is added to the diff invocation for the test_json_parser module
tests and the pg_bsd_indent tests. in pg_regress.c we replace the
current use of the "-w" flag, which ignore all white space differences,
with this one which only ignores line end differences.
Discussion: https://postgr.es/m/
20240707052030[email protected]
Fujii Masao [Wed, 10 Jul 2024 06:56:07 +0000 (15:56 +0900)]
doc: Update track_io_timing documentation to mention pg_stat_io.
The I/O timing information collected when track_io_timing is
enabled is now documented to appear in the pg_stat_io view,
which was previously not mentioned.
This commit also enhances the description of track_io_timing
to clarify that it monitors not only block read and write
but also block extend and fsync operations. Additionally,
the description of track_wal_io_timing has been improved
to mention both WAL write and WAL fsync monitoring.
Backpatch to v16 where pg_stat_io was added.
Author: Hajime Matsunaga
Reviewed-by: Melanie Plageman, Nazir Bilal Yavuz, Fujii Masao
Discussion: https://postgr.es/m/TYWPR01MB10742EE4A6F34C33061429D38A4D52@TYWPR01MB10742.jpnprd01.prod.outlook.com
Andrew Dunstan [Tue, 9 Jul 2024 21:29:48 +0000 (17:29 -0400)]
Prevent CRLF conversion of inputs in json_parser test module
Do this by opening the file in PG_BINARY_R mode. This prevents us from
getting wrong byte count from stat().
Per complaint from Andres Freund
Discussion: https://postgr.es/m/
20240707052030[email protected]
Backpatch to rlease 17 where this code was introduced
Jeff Davis [Tue, 9 Jul 2024 18:27:10 +0000 (11:27 -0700)]
Fix missing invalidations for search_path cache.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/
20240630223047[email protected]
Backpatch-through: 17
Amit Langote [Tue, 9 Jul 2024 07:12:22 +0000 (16:12 +0900)]
SQL/JSON: Various improvements to SQL/JSON query function docs
1. Remove the keyword SELECT from the examples to be consistent
with the examples of other JSON-related functions listed on the
same page.
2. Add <synopsis> tags around the functions' syntax definition
3. Capitalize function names in the syntax synopsis and the examples
4. Use <itemizedlist> lists for dividing the descriptions of
individual functions into bullet points
5. Significantly rewrite the description of wrapper clauses of
JSON_QUERY
6. Significantly rewrite the descriptions of ON ERROR / EMPTY
clauses of JSON_QUERY() and JSON_VALUE() functions
7. Add a note about how JSON_VALUE() and JSON_QUERY() differ when
returning a JSON null result
8. Move the description of the PASSING clause from the descriptions
of individual functions into the top paragraph
And other miscellaneous text improvements, typo fixes.
Suggested-by: Thom Brown <[email protected]>
Suggested-by: David G. Johnston <[email protected]>
Reviewed-by: Jian He <[email protected]>
Reviewed-by: Erik Rijkers <[email protected]>
Discussion: https://postgr.es/m/CAA-aLv7Dfy9BMrhUZ1skcg=OdqysWKzObS7XiDXdotJNF0E44Q@mail.gmail.com
Discussion: https://postgr.es/m/CAKFQuwZNxNHuPk44zDF7z8qZec1Aof10aA9tWvBU5CMhEKEd8A@mail.gmail.com
Fujii Masao [Tue, 9 Jul 2024 00:26:54 +0000 (09:26 +0900)]
Fix limit block handling in pg_wal_summary_contents().
Previously, pg_wal_summary_contents() had two issues,
causing discrepancies between pg_wal_summary_contents()
and the pg_walsummary command on the same WAL summary file:
(1) It did not emit the limit block when that's the only data for
a particular relation fork.
(2) It emitted the same limit block multiple times if the list of
block numbers was long enough.
This commit fixes these issues.
Backpatch to v17 where pg_wal_summary_contents() was added.
Author: Fujii Masao
Reviewed-by: Robert Haas
Discussion: https://postgr.es/m/
90980ee6-2da6-42f6-a7b0-
b7bae62ae279@oss.nttdata.com
Andrew Dunstan [Mon, 8 Jul 2024 17:46:21 +0000 (13:46 -0400)]
Symlink pg_replslot robustly on Windows in pg_basebackup test
This reverts commit
e9f15bc9. Instead of a hacky solution that didn't
work on Windows, we avoid trying to move the directory possibly across
drives, and instead remove it and recreate it in the new location.
Discussion: https://postgr.es/m/
20240707070243[email protected]
Backpatch to release 14 like the previous patch.
Andrew Dunstan [Mon, 8 Jul 2024 15:18:06 +0000 (11:18 -0400)]
Choose ports for test servers less likely to result in conflicts
If we choose ports in the range typically used for ephemeral ports there
is a danger of encountering a port conflict due to a race condition
between the time we choose the port in a range below that typically used
to allocate ephemeral ports, but higher than the range typically used by
well known services.
Author: Jelte Fenema-Nio, with some editing by me.
Discussion: https://postgr.es/m/
d6ee8761-39d1-0033-1afb-
d5a57ee056f2@gmail.com
Backpatch to all live branches (12 and up)
Andrew Dunstan [Mon, 8 Jul 2024 09:51:26 +0000 (05:51 -0400)]
Force nodes for SSL tests to start in TCP mode
Currently they are started in unix socket mode in ost cases, and then
converted to run in TCP mode. This can result in port collisions, and
there is no virtue in startng in unix socket mode, so start as we will
be going on.
Discussion: https://postgr.es/m/
d6ee8761-39d1-0033-1afb-
d5a57ee056f2@gmail.com
Backpatch to all live branches (12 and up).
Dean Rasheed [Mon, 8 Jul 2024 16:51:23 +0000 (17:51 +0100)]
Fix scale clamping in numeric round() and trunc().
The numeric round() and trunc() functions clamp the scale argument to
the range between +/- NUMERIC_MAX_RESULT_SCALE (2000), which is much
smaller than the actual allowed range of type numeric. As a result,
they return incorrect results when asked to round/truncate more than
2000 digits before or after the decimal point.
Fix by using the correct upper and lower scale limits based on the
actual allowed (and documented) range of type numeric.
While at it, use the new NUMERIC_WEIGHT_MAX constant instead of
SHRT_MAX in all other overflow checks, and fix a comment thinko in
power_var() introduced by
e54a758d24 -- the minimum value of
ln_dweight is -NUMERIC_DSCALE_MAX (-16383), not -SHRT_MAX, though this
doesn't affect the point being made in the comment, that the resulting
local_rscale value may exceed NUMERIC_MAX_DISPLAY_SCALE (1000).
Back-patch to all supported branches.
Dean Rasheed, reviewed by Joel Jacobson.
Discussion: https://postgr.es/m/CAEZATCXB%2BrDTuMjhK5ZxcouufigSc-X4tGJCBTMpZ3n%3DxxQuhg%40mail.gmail.com
Amit Langote [Mon, 8 Jul 2024 13:11:57 +0000 (22:11 +0900)]
Typo fix
Reported-by: Junwang Zhao <[email protected]>
Discussion: https://postgr.es/m/CAEG8a3KPi=LayiTwJ11ikF7bcqnZUrcj8NgX0V8nO1mQKZ9GfQ@mail.gmail.com
Backpatch-through: 17
Heikki Linnakangas [Mon, 8 Jul 2024 09:44:45 +0000 (12:44 +0300)]
Fix outdated comment after removal of direct SSL fallback
The option to fall back from direct SSL to negotiated SSL or a
plaintext connection was removed in commit
fb5718f35f.
Discussion: https://www.postgresql.org/message-id/
c82ad227-e049-4e18-8898-
475a748b5a5a@iki.fi
Richard Guo [Mon, 8 Jul 2024 01:17:12 +0000 (10:17 +0900)]
Fix right-anti-joins when the inner relation is proven unique
For an inner_unique join, we always assume that the executor will stop
scanning for matches after the first match. Therefore, for a mergejoin
that is inner_unique and whose mergeclauses are sufficient to identify a
match, we set the skip_mark_restore flag to true, indicating that the
executor need not do mark/restore calls. However, merge-right-anti-join
did not get this memo and continues scanning the inner side for matches
after the first match. If there are duplicates in the outer scan, we
may incorrectly skip matching some inner tuples, which can lead to wrong
results.
Here we fix this issue by ensuring that merge-right-anti-join also
advances to next outer tuple after the first match in inner_unique
cases. This also saves cycles by avoiding unnecessary scanning of inner
tuples after the first match.
Although hash-right-anti-join does not suffer from this wrong results
issue, we apply the same change to it as well, to help save cycles for
the same reason.
Per bug #18522 from Antti Lampinen, and bug #18526 from Feliphe Pozzer.
Back-patch to v16 where right-anti-join was introduced.
Author: Richard Guo
Discussion: https://postgr.es/m/18522-
c7a8956126afdfd0@postgresql.org
Michael Paquier [Mon, 8 Jul 2024 00:35:10 +0000 (09:35 +0900)]
Re-enable autoruns for for cmd.exe on Windows
This acts as a revert of
b83747a8a65b and
9886744a361b. As pointed out
by Noah, HEAD and REL_17_STABLE are in a weird state where the code
paths adding /D would limit the spawn of child processes, but we still
have code paths where the spawn of more than one child process would be
possible.
Let's remove these /D switches for now, to bring back the code into a
state consistent with how autorun is configured on a Windows host.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/
20240630021211[email protected]
Backpatch-through: 17
David Rowley [Sat, 6 Jul 2024 02:00:06 +0000 (14:00 +1200)]
Fix incorrect sentinel byte logic in GenerationRealloc()
This only affects MEMORY_CONTEXT_CHECKING builds.
This fixes an off-by-one issue in GenerationRealloc() where the
fast-path code which tries to reuse the existing allocation if the
existing chunk is >= the new requested size. The code there thought it
was always ok to use the existing chunk, but when oldsize == size there
isn't enough space to store the sentinel byte. If both sizes matched
exactly set_sentinel() would overwrite the first byte beyond the chunk
and then subsequent GenerationRealloc() calls could then fail the
Assert(chunk->requested_size < oldsize) check which is trying to ensure
the chunk is large enough to store the sentinel.
The same issue does not exist in aset.c as the sentinel checking code
only adds a sentinel byte if there's enough space in the chunk.
Reported-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/
49275921-7b39-41af-5eb8-
97b50ce3312e@gmail.com
Backpatch-through: 16, where the problem was introduced by
0e480385e
Thomas Munro [Fri, 5 Jul 2024 22:24:49 +0000 (10:24 +1200)]
Cope with <regex.h> name clashes.
macOS 15's SDK pulls in headers related to <regex.h> when we include
<xlocale.h>. This causes our own regex_t implementation to clash with
the OS's regex_t implementation. Luckily our function names already had
pg_ prefixes, but the macros and typenames did not.
Include <regex.h> explicitly on all POSIX systems, and fix everything
that breaks. Then we can prove that we are capable of fully hiding and
replacing the system regex API with our own.
1. Deal with standard-clobbering macros by undefining them all first.
POSIX says they are "symbolic constants". If they are macros, this
allows us to redefine them. If they are enums or variables, our macros
will hide them.
2. Deal with standard-clobbering types by giving our types pg_
prefixes, and then using macros to redirect xxx_t -> pg_xxx_t.
After including our "regex/regex.h", the system <regex.h> is hidden,
because we've replaced all the standard names. The PostgreSQL source
tree and extensions can continue to use standard prefix-less type and
macro names, but reach our implementation, if they included our
"regex/regex.h" header.
Back-patch to all supported branches, so that macOS 15's tool chain can
build them.
Reported-by: Stan Hu <[email protected]>
Suggested-by: Tom Lane <[email protected]>
Tested-by: Aleksander Alekseev <[email protected]>
Discussion: https://postgr.es/m/CAMBWrQnEwEJtgOv7EUNsXmFw2Ub4p5P%2B5QTBEgYwiyjy7rAsEQ%40mail.gmail.com
Bruce Momjian [Fri, 5 Jul 2024 20:51:56 +0000 (16:51 -0400)]
doc PG 17 relnotes: fix psql connection cancelation item
Reported-by: Matthias van de Meent
Discussion: https://postgr.es/m/CAEze2WiprrENrFQqeXij2XyLAdoZaFTFLGC8sE=V8c1yrWn+2A@mail.gmail.com
Backpatch-through: 17 only
Tom Lane [Thu, 4 Jul 2024 17:23:32 +0000 (13:23 -0400)]
Doc: small improvements in discussion of geometric data types.
State explicitly that the coordinates in our geometric data types are
float8. Also explain that polygons store their bounding box.
While here, fix the table of geometric data types to show type
"line"'s size correctly: it's 24 bytes not 32. This has somehow
escaped notice since that table was made in 1998.
Per suggestion from Sebastian Skałacki. The size error seems
important enough to justify back-patching.
Discussion: https://postgr.es/m/
172000045661.706.
1822177575291548794@wrigleys.postgresql.org
Alvaro Herrera [Thu, 4 Jul 2024 11:57:47 +0000 (13:57 +0200)]
Fix copy/paste mistake in comment
Backpatch to 17
Author: Yugo NAGATA <
[email protected]>
Discussion: https://postgr.es/m/
20240704134638.
355ad44a445fa1e764a220cd@sranhm.sraoss.co.jp
Alvaro Herrera [Thu, 4 Jul 2024 11:25:31 +0000 (13:25 +0200)]
Remove bogus assertion in pg_atomic_monotonic_advance_u64
This code wanted to ensure that the 'exchange' variable passed to
pg_atomic_compare_exchange_u64 has correct alignment, but apparently
platforms don't actually require anything that doesn't come naturally.
While messing with pg_atomic_monotonic_advance_u64: instead of using
Max() to determine the value to return, just use
pg_atomic_compare_exchange_u64()'s return value to decide; also, use
pg_atomic_compare_exchange_u64 instead of the _impl version; also remove
the unnecessary underscore at the end of variable name "target".
Backpatch to 17, where this code was introduced by commit
bf3ff7bf83bc.
Reported-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/
36796438-a718-cf9b-2071-
b2c1b947c1b5@gmail.com
Daniel Gustafsson [Thu, 4 Jul 2024 10:10:12 +0000 (12:10 +0200)]
doc: Specify when ssl_prefer_server_ciphers was added
The ssl_prefer_server_ciphers setting is quite important from a
security point of view, so simply stating that older versions
doesn't have it isn't very helpful. This adds the version when
the GUC was added to help readers.
Backpatch to all supported versions since this setting has been
around since 9.4.
Reviewed-by: Peter Eisentraut <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Discussion: https://postgr.es/m/
5D7E0F5E-E620-4D54-8788-
66D421AC76F0@yesql.se
Backpatch-through: v12
Amit Langote [Fri, 28 Jun 2024 06:09:59 +0000 (15:09 +0900)]
SQL/JSON: Fix some obsolete comments.
JSON_OBJECT(), JSON_OBJETAGG(), JSON_ARRAY(), and JSON_ARRAYAGG()
added in
7081ac46ace are not transformed into direct calls to
user-defined functions as the comments claim. Fix by mentioning
instead that they are transformed into JsonConstructorExpr nodes,
which may call them, for example, for the *AGG() functions.
Reported-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/
058c856a-e090-ac42-ff00-
ffe394f52a87%40gmail.com
Backpatch-through: 16
Alexander Korotkov [Wed, 3 Jul 2024 23:05:27 +0000 (02:05 +0300)]
Fix typo in GetRunningTransactionData()
e85662df44 made GetRunningTransactionData() calculate the oldest running
transaction id within the current database. However, because of the typo,
the new code uses oldestRunningXid instead of oldestDatabaseRunningXid
in comparison before updating oldestDatabaseRunningXid. This commit fixes
that issue.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/
20240630231816.bf.nmisch%40google.com
Backpatch-through: 17
Heikki Linnakangas [Wed, 3 Jul 2024 12:58:14 +0000 (15:58 +0300)]
Avoid 0-length memcpy to NULL with EXEC_BACKEND
memcpy(NULL, src, 0) is forbidden by POSIX, even though every
production version of libc allows it. Let's be tidy.
Per report from Thomas Munro, running UBSan with EXEC_BACKEND.
Backpatch to v17, where this code was added.
Discussion: https://www.postgresql.org/message-id/CA%2BhUKG%2Be-dV7YWBzfBZXsgovgRuX5VmvmOT%
[email protected]
Heikki Linnakangas [Wed, 3 Jul 2024 12:53:30 +0000 (15:53 +0300)]
Tighten check for --forkchild argument when spawning child process
Commit
aafc05de1b removed all the other --fork* arguments. Altough
this is inconsequential, backpatch to v17 since this is new.
Author: Nathan Bossart
Discussion: https://www.postgresql.org/message-id/ZnCCEN0l3qWv-XpW@nathan
Amit Kapila [Wed, 3 Jul 2024 09:27:07 +0000 (14:57 +0530)]
Fix the testcase introduced in commit
81d20fbf7a.
The failed test was syncing failover replication slot to standby to test
that we remove such slots after the standby is converted to subscriber by
pg_createsubscriber.
In one of the buildfarm members, the sync of the slot failed because the
LSN on the standby was before the syncslot's LSN. We need to wait for
standby to catch up before trying to sync the slot with
pg_sync_replication_slots().
The other buildfarm failed because autovacuum generated a xid which is
replicated to the standby at some random point making slots at primary
lag behind standby during slot sync.
Both these failures wouldn't have occurred if we had used built-in
slotsync worker as it would have waited for the standby to sync with
primary but for this test, it is sufficient to use
pg_sync_replication_slots().
Reported-by: Alexander Lakhin as per buildfarm
Author: Kuroda Hayato
Reviewed-by: Amit Kapila
Backpatch-through: 17
Discussion: https://postgr.es/m/
0dffca12-bf17-4a7a-334d-
225569de5e6e@gmail.com
Discussion: https://postgr.es/m/OSBPR01MB25528300C71FDD83EA1DCA12F5DD2@OSBPR01MB2552.jpnprd01.prod.outlook.com
Amit Kapila [Tue, 2 Jul 2024 05:50:06 +0000 (11:20 +0530)]
Drop pre-existing subscriptions from the converted subscriber.
We don't need the pre-existing subscriptions on the newly formed
subscriber by using pg_createsubscriber. The apply workers corresponding
to these subscriptions can connect to other publisher nodes and either get
some unwarranted data or can lead to ERRORs in connecting to such nodes.
Author: Kuroda Hayato
Reviewed-by: Amit Kapila, Shlok Kyal, Vignesh C
Backpatch-through: 17
Discussion: https://postgr.es/m/OSBPR01MB25526A30A1FBF863ACCDDA3AF5C92@OSBPR01MB2552.jpnprd01.prod.outlook.com
Amit Kapila [Tue, 2 Jul 2024 04:45:11 +0000 (10:15 +0530)]
Remove unused structure member in pg_createsubscriber.c.
Author: Kuroda Hayato
Backpatch-through: 17
Discussion: https://postgr.es/m/OSBPR01MB25526A30A1FBF863ACCDDA3AF5C92@OSBPR01MB2552.jpnprd01.prod.outlook.com
Amit Kapila [Tue, 2 Jul 2024 03:47:41 +0000 (09:17 +0530)]
Update release notes to reflect recent commit
0f934b0739.
Author: Hou Zhijie
Discussion: https://postgr.es/m/
[email protected]
Discussion: https://postgr.es/m/OS3PR01MB57187B959C1ECC78B0C7C91A94D32@OS3PR01MB5718.jpnprd01.prod.outlook.com
Tom Lane [Mon, 1 Jul 2024 16:21:07 +0000 (12:21 -0400)]
Preserve CurrentMemoryContext across notify and sinval interrupts.
ProcessIncomingNotify is called from the main processing loop that
normally runs in MessageContext. That outer-loop code assumes that
whatever it allocates will be cleaned up when we're done processing
the current client message --- but if we service a notify interrupt,
then whatever gets allocated before the next switch into
MessageContext will be permanently leaked in TopMemoryContext,
because CommitTransactionCommand sets CurrentMemoryContext to
TopMemoryContext. There are observable leaks associated with
(at least) encoding conversion of incoming queries and parameters
attached to Bind messages.
sinval catchup interrupts have a similar problem. There might be
others, but I've not identified any other clear cases.
To fix, take care to save and restore CurrentMemoryContext across
the Start/CommitTransactionCommand calls in these functions.
Per bug #18512 from wizardbrony. Commit to back branches only;
in HEAD, this was dealt with by the riskier but more thoroughgoing
approach in commit
1afe31f03.
Discussion: https://postgr.es/m/
3478884.
1718656625@sss.pgh.pa.us
Alvaro Herrera [Mon, 1 Jul 2024 11:58:22 +0000 (13:58 +0200)]
Fix copy-paste mistake in PQcancelCreate
When an OOM occurred, this function was incorrectly setting a status of
CONNECTION_BAD on the passed in PGconn instead of on the newly created
PGcancelConn.
Mistake introduced with
61461a300c1c. Backpatch to 17.
Author: Jelte Fennema-Nio <
[email protected]>
Reported-by: Noah Misch <[email protected]>
Discussion: https://postgr.es/m/
20240630190040[email protected]
Amit Kapila [Mon, 1 Jul 2024 05:32:04 +0000 (11:02 +0530)]
Rename standby_slot_names to synchronized_standby_slots.
The standby_slot_names GUC allows the specification of physical standby
slots that must be synchronized before the logical walsenders associated
with logical failover slots. However, for this purpose, the GUC name is
too generic.
Author: Hou Zhijie
Reviewed-by: Bertrand Drouvot, Masahiko Sawada
Backpatch-through: 17
Discussion: https://postgr.es/m/
[email protected]
Tom Lane [Mon, 1 Jul 2024 03:20:57 +0000 (23:20 -0400)]
Further weaken new pg_createsubscriber test on Windows.
Also omit backslashes (\) in the generated database names on Windows.
As before, perhaps we can revert this after updating affected
buildfarm animals.
Discussion: https://postgr.es/m/
2509767.
1719773880@sss.pgh.pa.us
Michael Paquier [Sun, 30 Jun 2024 23:05:35 +0000 (08:05 +0900)]
Adapt REL_17_STABLE to its new status as a stable branch
Per the checklist in RELEASE_CHANGES for the creation of a new stable
branch, this commit does the following things:
- Arm gen_node_support.pl's nodetag ABI stability, based on the contents
of nodetags.h.
- Update URLs of top-level README and Makefile to point to the new
stable version.
In passing, this fixes an incorrect comment in release-17.sgml.
Michael Paquier [Sun, 30 Jun 2024 22:35:01 +0000 (07:35 +0900)]
Run pgperltidy
This is required before the creation of a new branch. pgindent is
clean, as well as is reformat-dat-files.
perltidy version is v20230309, as documented in pgindent's README.
Tom Lane [Sun, 30 Jun 2024 21:33:06 +0000 (17:33 -0400)]
Temporarily(?) weaken new pg_createsubscriber test on Windows.
Don't include double-quotes (") in the generated database names
on Windows. Doing so tickles a bug in older versions of IPC::Run,
which fail to quote command line arguments correctly for that
platform. Possibly we can revert this after updating affected
buildfarm animals.
Discussion: https://postgr.es/m/
2509767.
1719773880@sss.pgh.pa.us
Tomas Vondra [Sun, 30 Jun 2024 17:26:12 +0000 (19:26 +0200)]
Add PG_TEST_PG_COMBINEBACKUP_MODE
Introduces an environment variable PG_TEST_PG_COMBINEBACKUP_MODE, that
determines copy mode used by pg_combinebackup in TAP tests. Defaults to
"--copy" but may be set to "--clone" or "--copy-file-range" to use the
alternative stategies.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/
48da4a1f-ccd9-4988-9622-
24f37b1de2b4%40eisentraut.org
Tomas Vondra [Sun, 30 Jun 2024 17:20:02 +0000 (19:20 +0200)]
Add pg_combinebackup --copy option
Introduces --copy as an alternative to --clone and --copy-file-range.
This option simply picks the default mode to copy files, as if none of
the options was specified. This makes pg_combinebackup options more
consistent with pg_upgrade, and it makes testing simpler.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/
48da4a1f-ccd9-4988-9622-
24f37b1de2b4%40eisentraut.org
Tomas Vondra [Sun, 30 Jun 2024 17:02:00 +0000 (19:02 +0200)]
Add headers needed by pg_combinebackup --clone
The code for file cloning existed, but was not reachable as it relied on
constants from missing headers. Due to that, on Linux --clone always
failed with
error: file cloning not supported on this platform
Fixed by including the missing headers to relevant places. Adding the
headers revealed a couple compile errors in copy_file_clone(), so fix
those too.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/
48da4a1f-ccd9-4988-9622-
24f37b1de2b4%40eisentraut.org
Tom Lane [Sun, 30 Jun 2024 18:24:14 +0000 (14:24 -0400)]
Make pg_createsubscriber warn if publisher has two-phase commit enabled.
pg_createsubscriber currently always sets up logical replication
with two-phase commit disabled. Improving that is not going to
happen for v17. In the meantime, document the deficiency, and
adjust pg_createsubscriber so that it will emit a warning if
the source installation has max_prepared_transactions > 0.
Hayato Kuroda (some mods by Amit Kapila and me), per complaint from
Noah Misch
Discussion: https://postgr.es/m/
20240623062157[email protected]
Tom Lane [Sun, 30 Jun 2024 17:45:24 +0000 (13:45 -0400)]
Make pg_createsubscriber more wary about quoting connection parameters.
The original coding here could fail with database names, user names,
etc that contain spaces or other special characters.
As partial test coverage, extend the 040_pg_createsubscriber.pl
test script so that it uses a generated database name containing
funny characters.
Hayato Kuroda (some mods by me), per complaint from Noah Misch
Discussion: https://postgr.es/m/
20240623062157[email protected]
Noah Misch [Fri, 28 Jun 2024 18:17:50 +0000 (11:17 -0700)]
Fix .gitignore for new injection suite.
Commit
c35f419d6efbdf1a050250d84b687e6705917711 missed this.
Noah Misch [Fri, 28 Jun 2024 16:33:40 +0000 (09:33 -0700)]
Remove configuration-dependent output from new inplace-inval test.
Per buildfarm members prion and trilobite. Back-patch to v12 (all
supported versions), like commit
0844b3968985447ed0a6937cfc8639e379da2fe6.
Strategy reviewed by Tom Lane.
Discussion: https://postgr.es/m/
20240628051353[email protected]
Robert Haas [Fri, 28 Jun 2024 14:45:51 +0000 (10:45 -0400)]
pgindent, because I forgot to do that.
Commit
065583cf460f980a182498941ac52810f709a897 should have
included these changes.
Amit Langote [Fri, 28 Jun 2024 12:58:13 +0000 (21:58 +0900)]
SQL/JSON: Always coerce JsonExpr result at runtime
Instead of looking up casts at parse time for converting the result
of JsonPath* query functions to the specified or the default
RETURNING type, always perform the conversion at runtime using either
the target type's input function or the function
json_populate_type().
There are two motivations for this change:
1. json_populate_type() coerces to types with typmod such that any
string values that exceed length limit cause an error instead of
silent truncation, which is necessary to be standard-conforming.
2. It was possible to end up with a cast expression that doesn't
support soft handling of errors causing bugs in the of handling
ON ERROR clause.
JsonExpr.coercion_expr which would store the cast expression is no
longer necessary, so remove.
Bump catversion because stored rules change because of the above
removal.
Reported-by: Alvaro Herrera <[email protected]>
Reviewed-by: Jian He <[email protected]>
Discussion: Discussion: https://postgr.es/m/
202405271326.5a5rprki64aw%40alvherre.pgsql
Amit Langote [Fri, 28 Jun 2024 12:37:14 +0000 (21:37 +0900)]
SQL/JSON: Fix coercion of constructor outputs to types with typmod
Ensure SQL/JSON constructor functions that allow specifying the
target type using the RETURNING clause perform implicit cast to
that type. This ensures that output values that exceed the specified
length produce an error rather than being silently truncated. This
behavior conforms to the SQL standard.
Reported-by: Alvaro Herrera <[email protected]>
Reviewed-by: Jian He <[email protected]>
Discussion: https://postgr.es/m/
202405271326.5a5rprki64aw%40alvherre.pgsql
Robert Haas [Tue, 25 Jun 2024 19:42:36 +0000 (15:42 -0400)]
Prevent summarizer hang when summarize_wal turned off and back on.
Before this commit, when the WAL summarizer started up or recovered
from an error, it would resume summarization from wherever it left
off. That was OK normally, but wrong if summarize_wal=off had been
turned off temporary, allowing some WAL to be removed, and then turned
back on again. In such cases, the WAL summarizer would simply hang
forever. This commit changes the reinitialization sequence for WAL
summarizer to rederive the starting position in the way we were
already doing at initial startup, fixing the problem.
Per report from Israel Barth Rubio. Reviewed by Tom Lane.
Discussion: http://postgr.es/m/CA+TgmoYN6x=YS+FoFOS6=nr6=qkXZFWhdiL7k0oatGwug2hcuA@mail.gmail.com
Amit Langote [Fri, 28 Jun 2024 04:59:57 +0000 (13:59 +0900)]
SQL/JSON: Validate values in ON ERROR/EMPTY clauses
Currently, the grammar allows any supported values in the ON ERROR
and ON EMPTY clauses for SQL/JSON functions, regardless of whether
the values are appropriate for the function. This commit ensures
that during parse analysis, the provided value is checked for
validity for the given function and throws a syntax error if it is
not.
While at it, this fixes some omissions in the documentation of the
ON ERROR/EMPTY clauses for JSON_TABLE().
Reported-by: Jian He <[email protected]>
Reviewed-by: Jian He <[email protected]>
Discussion: https://postgr.es/m/CACJufxFgWGqpESSYzyJ6tSurr3vFYBSNEmCfkGyB_dMdptFnZQ%40mail.gmail.com
Amit Langote [Fri, 28 Jun 2024 04:59:13 +0000 (13:59 +0900)]
SQL/JSON: Prevent ON EMPTY for EXISTS columns in JSON_TABLE()
Due to an oversight in
de3600452b61, the ON EMPTY clause was
incorrectly allowed in the EXISTS column. Fix the grammar to prevent
this.
Discussion: https://postgr.es/m/CA%2BHiwqHh3YDXTpccgAo4CdfV9Mhy%2Bmg%3Doh6t8rfM5uLW1BJN4g%40mail.gmail.com
Michael Paquier [Fri, 28 Jun 2024 04:41:39 +0000 (13:41 +0900)]
Update modules/injection_points/.gitignore
Thinko in
c35f419d6efb, where an isolation test has been added to the
module.
Michael Paquier [Fri, 28 Jun 2024 04:30:47 +0000 (13:30 +0900)]
Fix comments in heaptuple.c
Since
e27f4ee0a701, fastgetattr() and heap_getattr() are not macros, but
inlined functions.
Author: Junwang Zhao
Reviewed-by: Stepan Neretin
Discussion: https://postgr.es/m/CAEG8a3JS-JKWWyOcM7BU=vPqFXa3W7mZSHnvc3CBqx=tC+3SCA@mail.gmail.com
Michael Paquier [Fri, 28 Jun 2024 03:31:29 +0000 (12:31 +0900)]
Improve locking around InjectionPointRun()
As coded, an injection point could be loaded into the local cache
without the LWLock InjectionPointLock taken, hence a point detached and
re-attached concurrently of a point running calling InjectionPointRun()
may finish by loading a callback it did no set initially. Based on all
the cases discussed until now on the lists, it is fine to delay the lock
release until the callback is run, so let's do that.
While on it, remove a useless LWLockRelease() called before an error in
InjectionPointAttach().
Per discussion with Heikki Linnakangas and Noah Misch.
Discussion: https://postgr.es/m/
e1ffb822-054e-4006-ac06-
50532767f75b@iki.fi
Noah Misch [Fri, 28 Jun 2024 02:21:06 +0000 (19:21 -0700)]
Remove comment about xl_heap_inplace "AT END OF STRUCT".
Commit
2c03216d831160bedd72d45f712601b6f7d03f1c moved the tuple data
from there to the buffer-0 data. Back-patch to v12 (all supported
versions), the plan for the next change to this struct.
Discussion: https://postgr.es/m/
20240523000548[email protected]
Noah Misch [Fri, 28 Jun 2024 02:21:06 +0000 (19:21 -0700)]
Cope with inplace update making catcache stale during TOAST fetch.
This extends
ad98fb14226ae6456fbaed7990ee7591cbe5efd2 to invals of
inplace updates. Trouble requires an inplace update of a catalog having
a TOAST table, so only pg_database was at risk. (The other catalog on
which core code performs inplace updates, pg_class, has no TOAST table.)
Trouble would require something like the inplace-inval.spec test.
Consider GRANT ... ON DATABASE fetching a stale row from cache and
discarding a datfrozenxid update that vac_truncate_clog() has already
relied upon. Back-patch to v12 (all supported versions).
Reviewed (in an earlier version) by Robert Haas.
Discussion: https://postgr.es/m/
20240114201411[email protected]
Discussion: https://postgr.es/m/
20240512232923[email protected]
Noah Misch [Fri, 28 Jun 2024 02:21:05 +0000 (19:21 -0700)]
AccessExclusiveLock new relations just after assigning the OID.
This has no user-visible, important consequences, since other sessions'
catalog scans can't find the relation until we commit. However, this
unblocks introducing a rule about locks required to heap_update() a
pg_class row. CREATE TABLE has been acquiring this lock eventually, but
it can heap_update() pg_class.relchecks earlier. create_toast_table()
has been acquiring only ShareLock. Back-patch to v12 (all supported
versions), the plan for the commit relying on the new rule.
Reviewed (in an earlier version) by Robert Haas.
Discussion: https://postgr.es/m/
20240611024525[email protected]
Noah Misch [Fri, 28 Jun 2024 02:21:05 +0000 (19:21 -0700)]
Lock before setting relhassubclass on RELKIND_PARTITIONED_INDEX.
Commit
5b562644fec696977df4a82790064e8287927891 added a comment that
SetRelationHasSubclass() callers must hold this lock. When commit
17f206fbc824d2b4b14480199ca9ff7dea417eda extended use of this column to
partitioned indexes, it didn't take the lock. As the latter commit
message mentioned, we currently never reset a partitioned index to
relhassubclass=f. That largely avoids harm from the lock omission. The
cause for fixing this now is to unblock introducing a rule about locks
required to heap_update() a pg_class row. This might cause more
deadlocks. It gives minor user-visible benefits:
- If an ALTER INDEX SET TABLESPACE runs concurrently with ALTER TABLE
ATTACH PARTITION or CREATE PARTITION OF, one transaction blocks
instead of failing with "tuple concurrently updated". (Many cases of
DDL concurrency still fail that way.)
- Match ALTER INDEX ATTACH PARTITION in choosing to lock the index.
While not user-visible today, we'll need this if we ever make something
set the flag to false for a partitioned index, like ANALYZE does today
for tables. Back-patch to v12 (all supported versions), the plan for
the commit relying on the new rule. In back branches, add
LockOrStrongerHeldByMe() instead of adding a LockHeldByMe() parameter.
Reviewed (in an earlier version) by Robert Haas.
Discussion: https://postgr.es/m/
20240611024525[email protected]