The previous wording was potentially confusing about the impact of the
OVERRIDING clause on generated columns. Reword slightly to avoid
that.
Reported-by: jian he <jian.universality@gmail.com> Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CACJufxFMBe0nPXOQZMLTH4Ry5Gyj4m%2B2Z05mRi9KB4hk8rGt9w%40mail.gmail.com
Tom Lane [Tue, 1 Jul 2025 16:40:35 +0000 (12:40 -0400)]
Make sure IOV_MAX is defined.
We stopped defining IOV_MAX on non-Windows systems in 75357ab94, on
the assumption that every non-Windows system defines it in <limits.h>
as required by X/Open. GNU Hurd, however, doesn't follow that
standard either. Put back the old logic to assume 16 if it's
not defined.
Author: Michael Banck <mbanck@gmx.net> Co-authored-by: Christoph Berg <myon@debian.org> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/6862e8d1.050a0220.194b8d.76fa@mx.google.com
Discussion: https://postgr.es/m/6846e0c3.df0a0220.39ef9b.c60e@mx.google.com
Backpatch-through: 16
Tom Lane [Tue, 1 Jul 2025 16:08:20 +0000 (12:08 -0400)]
Make safeguard against incorrect flags for fsync more portable.
The existing code assumed that O_RDONLY is defined as 0, but this is
not required by POSIX and is not true on GNU Hurd. We can avoid
the assumption by relying on O_ACCMODE to mask the fcntl() result.
(Hopefully, all supported platforms define that.)
Author: Michael Banck <mbanck@gmx.net> Co-authored-by: Samuel Thibault Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/6862e8d1.050a0220.194b8d.76fa@mx.google.com
Discussion: https://postgr.es/m/68480868.5d0a0220.1e214d.68a6@mx.google.com
Backpatch-through: 13
Jeff Davis [Tue, 1 Jul 2025 14:42:44 +0000 (07:42 -0700)]
Remove provider field from pg_locale_t.
The behavior of pg_locale_t is specified by methods, so a separate
provider field is no longer necessary.
Reviewed-by: Andreas Karlsson <andreas@proxel.se> Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/2830211e1b6e6a2e26d845780b03e125281ea17b.camel%40j-davis.com
Jeff Davis [Tue, 1 Jul 2025 14:42:39 +0000 (07:42 -0700)]
Control ctype behavior internally with a method table.
Previously, pattern matching and case mapping behavior branched based
on the provider. Refactor to use a method table, which is less
error-prone.
This is also a step toward multiple provider versions, which we may
want to support in the future.
Reviewed-by: Andreas Karlsson <andreas@proxel.se> Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/2830211e1b6e6a2e26d845780b03e125281ea17b.camel%40j-davis.com
Tomas Vondra [Tue, 1 Jul 2025 10:58:35 +0000 (12:58 +0200)]
Add CHECK_FOR_INTERRUPTS into pg_numa_query_pages
Querying the NUMA status can be quite time consuming, especially with
large shared buffers. 8cc139bec34a called numa_move_pages() once, for
all buffers, and we had to wait for the syscall to complete.
But with the chunking, introduced by 7fe2f67c7c to work around a kernel
bug, we can do CHECK_FOR_INTERRUPTS() after each chunk, allowing users
to abort the execution.
Tomas Vondra [Tue, 1 Jul 2025 10:32:23 +0000 (12:32 +0200)]
Silence valgrind about pg_numa_touch_mem_if_required
When querying NUMA status of pages in shared memory, we need to touch
the memory first to get valid results. This may trigger valgrind
reports, because some of the memory (e.g. unpinned buffers) may be
marked as noaccess.
Solved by adding a valgrind suppresion. An alternative would be to
adjust the access/noaccess status before touching the memory, but that
seems far too invasive. It would require all those places to have
detailed knowledge of what the shared memory stores.
The pg_numa_touch_mem_if_required() macro is replaced with a function.
Macros are invisible to suppressions, so it'd have to suppress reports
for the caller - e.g. pg_get_shmem_allocations_numa(). So we'd suppress
reports for the whole function, and that seems to heavy-handed. It might
easily hide other valid issues.
Tomas Vondra [Tue, 1 Jul 2025 10:02:31 +0000 (12:02 +0200)]
Limit the size of numa_move_pages requests
There's a kernel bug in do_pages_stat(), affecting systems combining
64-bit kernel and 32-bit user space. The function splits the request
into chunks of 16 pointers, but forgets the pointers are 32-bit when
advancing to the next chunk. Some of the pointers get skipped, and
memory after the array is interpreted as pointers. The result is that
the produced status of memory pages is mostly bogus.
Systems combining 64-bit and 32-bit environments like this might seem
rare, but that's not the case - all 32-bit Debian packages are built in
a 32-bit chroot on a system with a 64-bit kernel.
This is a long-standing kernel bug (since 2010), affecting pretty much
all kernels, so it'll take time until all systems get a fixed kernel.
Luckily, we can work around the issue by chunking the requests the same
way do_pages_stat() does, at least on affected systems. We don't know
what kernel a 32-bit build will run on, so all 32-bit builds use chunks
of 16 elements (the largest chunk before hitting the issue).
64-bit builds are not affected by this issue, and so could work without
the chunking. But chunking has other advantages, so we apply chunking
even for 64-bit builds, with chunks of 1024 elements.
Reported-by: Christoph Berg <myon@debian.org>
Author: Christoph Berg <myon@debian.org>
Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://postgr.es/m/aEtDozLmtZddARdB@msg.df7cb.de
Context: https://marc.info/?l=linux-mm&m=175077821909222&w=2
Backpatch-through: 18
There are different capitializations of "TOAST" around the
documentation and code. This just changes a few places that were more
obviously inconsistent with similar phrases elsewhere.
Author: Peter Smith <peter.b.smith@fujitsu.com>
Discussion: https://www.postgresql.org/message-id/flat/CAHut+PtxXLJFhwJFvx+M=Ux8WGHU85XbT3nDqk-aAUS3E5ANCw@mail.gmail.com
Michael Paquier [Tue, 1 Jul 2025 06:48:32 +0000 (15:48 +0900)]
xml2: Improve error handling of libxml2 calls
The contrib module xml2/ has always been fuzzy with the cleanup of the
memory allocated by the calls internal to libxml2, even if there are
APIs in place giving a lot of control over the error behavior, all
located in the backend's xml.c.
The code paths fixed in the commit address multiple defects, while
sanitizing the code:
- In xpath.c, several allocations are done by libxml2 for
xpath_workspace, whose memory cleanup could go out of sight as it relied
on a single TRY/CATCH block done in pgxml_xpath(). workspace->res is
allocated by libxml2, and may finish by not being freed at all upon a
failure outside of a TRY area. This code is refactored so as the
TRY/CATCH block of pgxml_xpath() is moved one level higher to its
callers, which are responsible for cleaning up the contents of a
workspace on failure. cleanup_workspace() now requires a volatile
workspace, forcing as a rule that a TRY/CATCH block should be used.
- Several calls, like xmlStrdup(), xmlXPathNewContext(),
xmlXPathCtxtCompile(), etc. can return NULL on failures (for most of
them allocation failures. These forgot to check for failures, or missed
that pg_xml_error_occurred() should be called, to check if an error is
already on the stack.
- Some memory allocated by libxml2 calls was freed in an incorrect way,
"resstr" in xslt_process() being one example.
The class of errors fixed here are for problems that are unlikely going
to happen in practice, so no backpatch is done. The changes have
finished by being rather invasive, so it is perhaps not a bad thing to
be conservative and to keep these changes only on HEAD anyway.
Author: Michael Paquier <michael@paquier.xyz> Reported-by: Karavaev Alexey <maralist86@mail.ru> Reviewed-by: Jim Jones <jim.jones@uni-muenster.de> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/18943-2f2a04ab03904598@postgresql.org
Amit Langote [Tue, 1 Jul 2025 04:13:48 +0000 (13:13 +0900)]
Fix typos in comments
Commit 19d8e2308bc added enum values with the prefix TU_, but a few
comments still referred to TUUI_, which was used in development
versions of the patches committed as 19d8e2308bc.
Michael Paquier [Mon, 30 Jun 2025 23:57:05 +0000 (08:57 +0900)]
Improve error handling of libxml2 calls in xml.c
This commit fixes some defects in the backend's xml.c, found upon
inspection of the internals of libxml2:
- xmlEncodeSpecialChars() can fail on malloc(), returning NULL back to
the caller. xmltext() assumed that this could never happen. Like other
code paths, a TRY/CATCH block is added there, covering also the fact
that cstring_to_text_with_len() could fail a memory allocation, where
the backend would miss to free the buffer allocated by
xmlEncodeSpecialChars().
- Some libxml2 routines called in xmlelement() can return NULL, like
xmlAddChildList() or xmlTextWriterStartElement(). Dedicated errors are
added for them.
- xml_xmlnodetoxmltype() missed that xmlXPathCastNodeToString() can fail
on an allocation failure. In this case, the call can just be moved to
the existing TRY/CATCH block.
All these code paths would cause the server to crash. As this is
unlikely a problem in practice, no backpatch is done. Jim and I have
caught these defects, not sure who has scored the most. The contrib
module xml2/ has similar defects, which will be addressed in a separate
change.
Reported-by: Jim Jones <jim.jones@uni-muenster.de> Reviewed-by: Jim Jones <jim.jones@uni-muenster.de>
Discussion: https://postgr.es/m/aEEingzOta_S_Nu7@paquier.xyz
Tom Lane [Mon, 30 Jun 2025 21:06:39 +0000 (17:06 -0400)]
Improve error report for PL/pgSQL reserved word used as a field name.
The current code in resolve_column_ref (dating to commits 01f7d2990
and fe24d7816) believes that not finding a RECFIELD datum is a
can't-happen case, in consequence of which I didn't spend a whole lot
of time considering what to do if it did happen. But it turns out
that it *can* happen if the would-be field name is a fully-reserved
PL/pgSQL keyword. Change the error message to describe that
situation, and add a test case demonstrating it.
This might need further refinement if anyone can find other ways to
trigger a failure here; but without an example it's not clear what
other error to throw.
Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Discussion: https://postgr.es/m/2185258.1745617445@sss.pgh.pa.us
Tom Lane [Mon, 30 Jun 2025 20:59:36 +0000 (16:59 -0400)]
De-reserve keywords EXECUTE and STRICT in PL/pgSQL.
On close inspection, there does not seem to be a strong reason
why these should be fully-reserved keywords. I guess they just
escaped consideration in previous attempts to minimize PL/pgSQL's
list of reserved words.
Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Discussion: https://postgr.es/m/2185258.1745617445@sss.pgh.pa.us
Nathan Bossart [Mon, 30 Jun 2025 20:38:54 +0000 (15:38 -0500)]
Add new OID alias type regdatabase.
This provides a convenient way to look up a database's OID. For
example, the query
SELECT * FROM pg_shdepend
WHERE dbid = (SELECT oid FROM pg_database
WHERE datname = current_database());
can now be simplified to
SELECT * FROM pg_shdepend
WHERE dbid = current_database()::regdatabase;
Like the regrole type, regdatabase has cluster-wide scope, so we
disallow regdatabase constants from appearing in stored
expressions.
Bumps catversion.
Author: Ian Lawrence Barwick <barwick@gmail.com> Reviewed-by: Greg Sabino Mullane <htamfids@gmail.com> Reviewed-by: Jian He <jian.universality@gmail.com> Reviewed-by: Fabrízio de Royes Mello <fabriziomello@gmail.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/aBpjJhyHpM2LYcG0%40nathan
Andrew Dunstan [Mon, 30 Jun 2025 13:49:31 +0000 (09:49 -0400)]
Avoid uninitialized value error in TAP tests' Cluster->psql
If the method is called in scalar context and we didn't pass in a stderr
handle, one won't be created. However, some error paths assume that it
exists, so in this case create a dummy stderr to avoid the resulting
perl error.
Per gripe from Oleg Tselebrovskiy <o.tselebrovskiy@postgrespro.ru> and
adapted from his patch.
Peter Eisentraut [Mon, 30 Jun 2025 10:23:33 +0000 (12:23 +0200)]
pgflex: propagate environment to flex subprocess
Python's subprocess.run docs say that if the env argument is not None,
it will be used "instead of the default behavior of inheriting the
current process’ environment". However, the environment should be
preserved, only adding FLEX_TMP_DIR to it.
Author: Javier Maestro <jjmaestro@ieee.org>
Discussion: https://www.postgresql.org/message-id/flat/CABvji06GUpmrTqqiCr6_F9vRL2-JUSVAh8ChgWa6k47FUCvYmA%40mail.gmail.com
Peter Eisentraut [Mon, 30 Jun 2025 10:00:00 +0000 (12:00 +0200)]
Remove unused #include's in src/backend/utils/adt/*
Author: Aleksander Alekseev <aleksander@timescale.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CAJ7c6TOowVbR-0NEvvDm6a_mag18krR0XJ2FKrc9DHXj7hFRtQ%40mail.gmail.com
Fujii Masao [Mon, 30 Jun 2025 09:36:24 +0000 (18:36 +0900)]
psql: Improve tab completion for COPY command.
Previously, tab completion for COPY only suggested plain tables
and partitioned tables, even though materialized views are also
valid for COPY TO (since commit 534874fac0b), and foreign tables
are valid for COPY FROM.
This commit enhances tab completion for COPY to also include
materialized views and foreign tables.
Views with INSTEAD OF INSERT triggers are supported with
COPY FROM but rarely used, so plain views are intentionally
excluded from completion.
Author: jian he <jian.universality@gmail.com> Co-authored-by: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Kirill Reshke <reshkekirill@gmail.com> Reviewed-by: David G. Johnston <david.g.johnston@gmail.com>
Discussion: https://postgr.es/m/CACJufxFxnSkikp+GormAGHcMTX1YH2HRXW1+3dJM9w7yY9hdsg@mail.gmail.com
Peter Eisentraut [Mon, 30 Jun 2025 09:28:11 +0000 (11:28 +0200)]
doc: explain pgstatindex fragmentation
It was quite hard to guess what leaf_fragmentation meant without looking
at pgstattuple's code. This patch aims to give to the user a better
idea of what it means.
Peter Eisentraut [Mon, 30 Jun 2025 08:45:08 +0000 (10:45 +0200)]
pgbench: Use standard option handling test routines
Run program_XXX tests instead of its own tests. This ensures
consistency with the test suites of other programs and enforces common
policies, such as help line length.
Peter Eisentraut [Mon, 30 Jun 2025 08:32:26 +0000 (10:32 +0200)]
doc: Some copy-editing around prefix operators
When postfix operators where dropped in 1ed6b8956, the CREATE OPERATOR
docs were not updated to make the RIGHTARG argument mandatory in the
grammar.
While at it, make the RIGHTARG docs more concise. Also, the operator
docs were mentioning "infix" in the introduction, while using "binary"
everywhere else.
Author: Christoph Berg <myon@debian.org>
Discussion: https://www.postgresql.org/message-id/flat/aAtpbnQphv4LWAye@msg.df7cb.de
Michael Paquier [Mon, 30 Jun 2025 06:42:50 +0000 (15:42 +0900)]
Rationalize handling of VacuumParams
This commit refactors the vacuum routines that rely on VacuumParams,
adding const markers where necessary to force a new policy in the code.
This structure should not use a pointer as it may be used across
multiple relations, and its contents should never be updated.
vacuum_rel() stands as an exception as it touches the "index_cleanup"
and "truncate" options.
VacuumParams has been introduced in 0d831389749a, and 661643dedad9 has
fixed a bug impacting VACUUM operating on multiple relations. The
changes done in tableam.h break ABI compatibility, so this commit can
only happen on HEAD.
Michael Paquier [Mon, 30 Jun 2025 04:56:31 +0000 (13:56 +0900)]
Align log_line_prefix in CI and TAP tests with pg_regress.c
log_line_prefix is changed to include "%b", the backend type in the TAP
test configuration. %v and %x are removed from the CI configuration,
with the format around %b changed.
The lack of backend type in postgresql.conf set by Cluster.pm for the
TAP test configuration was something that has been bugging me, beginning
the discussion that has led to this change. The change in the CI has
come up during the discussion, to become consistent with pg_regress.c,
%v and %x not being that useful to have.
Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Daniel Gustafsson <daniel@yesql.se> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/aC0VaIWAXLgXcHVP@paquier.xyz
Tom Lane [Sun, 29 Jun 2025 19:04:32 +0000 (15:04 -0400)]
Fix some new issues with planning of PlaceHolderVars.
In the wake of commit a16ef313f, we need to deal with more cases
involving PlaceHolderVars in NestLoopParams than we did before.
For one thing, a16ef313f was incorrect to suppose that we could
rely on the required-outer relids of the lefthand path to decide
placement of nestloop-parameter PHVs. As Richard Guo argued at
the time, we must look at the required-outer relids of the join
path itself.
For another, we have to apply replace_nestloop_params() to such
a PHV's expression, in case it contains references to values that
will be supplied from NestLoopParams of higher-level nestloops.
For another, we need to be more careful about the phnullingrels
of the PHV than we were being. identify_current_nestloop_params
only bothered to ensure that the phnullingrels didn't contain
"too many" relids, but now it has to be exact, because setrefs.c
will apply both NRM_SUBSET and NRM_SUPERSET checks in different
places. We can compute the correct relids by determining the
set of outer joins that should be able to null the PHV and then
subtracting whatever's been applied at or below this join.
Do the same for plain Vars, too. (This should make it possible
to use NRM_EQUAL to process nestloop params in setrefs.c, but
I won't risk making such a change in v18 now.)
Lastly, if a nestloop parameter PHV was pulled up out of a subquery
and it contains a subquery that was originally pushed down from this
query level, then that will still be represented as a SubLink, because
SS_process_sublinks won't recurse into outer PHVs, so it didn't get
transformed during expression preprocessing in the subquery. We can
substitute the version of the PHV's expression appearing in its
PlaceHolderInfo to ensure that that preprocessing has happened.
(Seems like this processing sequence could stand to be redesigned,
but again, late in v18 development is not the time for that.)
It's not very clear to me why the old have_dangerous_phv join-order
restriction prevented us from seeing the last three of these problems.
But given the lack of field complaints, it must have done so.
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/18953-1c9883a9d4afeb30@postgresql.org
Tom Lane [Sun, 29 Jun 2025 17:56:03 +0000 (13:56 -0400)]
Obtain required table lock during cross-table constraint updates.
Sometimes a table's constraint may depend on a column of another
table, so that we have to update the constraint when changing the
referenced column's type. We need to have lock on the constraint's
table to do that. ATPostAlterTypeCleanup believed that this case
was only possible for FOREIGN KEY constraints, but it's wrong at
least for CHECK and EXCLUDE constraints; and in general, we'd
probably need exclusive lock to alter any sort of constraint.
So just remove the contype check and acquire lock for any other
table. This prevents a "you don't have lock" assertion failure,
though no ill effect is observed in production builds.
We'll error out later anyway because we don't presently support
physically altering column types within stored composite columns.
But the catalog-munging is basically all there, so we may as well
make that part work.
Bug: #18970 Reported-by: Alexander Lakhin <exclusion@gmail.com> Diagnosed-by: jian he <jian.universality@gmail.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/18970-a7d1cfe1f8d5d8d9@postgresql.org
Backpatch-through: 13
Peter Eisentraut [Sun, 29 Jun 2025 15:02:35 +0000 (17:02 +0200)]
pg_recvlogical: Rename --two-phase and --failover options.
This commit renames the pg_recvlogical options --two-phase and
--failover to --enable-two-phase and --enable-failover, respectively.
The new names distinguish these enabling options from action options
like --start and --create-slot, while clearly indicating their purpose
to enable specific logical slot features.
The option --failover is new in PostgreSQL 18 (commit cf2655a9029), so
no compatibility break there. The option --two-phase has existed
since PostgreSQL 15 (commit cda03cfed6b), so for compatibility we keep
the old option name --two-phase around as deprecated.
Also note that pg_createsubscriber has acquired an --enable-two-phase
option, so this increases consistency across tools.
Author: Jianghua Yang <yjhjstz@gmail.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CAAZLFmRxkUD5jRs0W3K%3DUe4_ZS%2BRcAb0PCE1S0vVJBn3sWH2UQ%40mail.gmail.com
Backpatch-through: 13
Fix CheckPointReplicationSlots() with max_replication_slots == 0
ca307d5cec90 made CheckPointReplicationSlots() unconditionally call
ReplicationSlotsComputeRequiredLSN(). It causes an assertion trap when
max_replication_slots equals 0. This commit makes
CheckPointReplicationSlots() call ReplicationSlotsComputeRequiredLSN() only
when at least one slot gets its last_saved_restart_lsn updated. That avoids
an assert trap and also saves some cycles when no one slot has
last_saved_restart_lsn updated.
Based on ideas from Dilip Kumar <dilipbalaut@gmail.com> and
Hayato Kuroda <kuroda.hayato@fujitsu.com>.
Michael Paquier [Fri, 27 Jun 2025 00:31:23 +0000 (09:31 +0900)]
Correct list of files in src/backend/lib/README
binaryheap.c and stringinfo.c have been moved to src/common/ by
respectively 5af0263afd7b and 26aaf97b683d, and the README patched here
still mentioned these two files as available in src/backend/lib/.
Author: Aleksander Alekseev <aleksander@timescale.com>
Discussion: https://postgr.es/m/CAJ7c6TPg-=tC+fzq0tGTtmL7r79-aWeCmpwAyQiGu0N+sKGj8Q@mail.gmail.com
Peter Eisentraut [Thu, 26 Jun 2025 20:02:16 +0000 (22:02 +0200)]
Correct misleading error messages
Commit 7d6d2c4bbd7 dropped opcintype from the index AM strategy
translation API. But some error messages about failed lookups still
mentioned it, even though it was not used for the lookup. Fix by
removing ipcintype from the error messages as well.
Melanie Plageman [Thu, 26 Jun 2025 19:03:48 +0000 (15:03 -0400)]
Remove unused check in heap_xlog_insert()
8e03eb92e9a reverted the commit 39b66a91bd which allowed freezing
in the heap_insert() code path but forgot to remove the corresponding
check in heap_xlog_insert(). This code is extraneous but not harmful.
However, cleaning it up makes it very clear that, as of now, we do not
support any freezing of pages in the heap_insert() path.
Melanie Plageman [Thu, 26 Jun 2025 18:25:45 +0000 (14:25 -0400)]
Simplify vacuum VM update logging counters
We can simplify the VM counters added in dc6acfd910b8 to
lazy_vacuum_heap_page() and lazy_scan_new_or_empty().
We won't invoke lazy_vacuum_heap_page() unless there are dead line
pointers, so we know the page can't be all-visible.
In lazy_scan_new_or_empty(), we only update the VM if the page-level
hint PD_ALL_VISIBLE is clear, and the VM bit cannot be set if the page
level bit is clear because a subsequent page update would fail to clear
the visibility map bit.
Simplify the logic for determining which log counters to increment based
on this knowledge. Doing so is worthwhile because the old logic was
confusing and misguided.
Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com> Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/flat/CAAKRu_a9w_n2mwY%3DG4LjfWTvRTJtjbfvnYAKi4WjO8QXHHrA0g%40mail.gmail.com
Álvaro Herrera [Thu, 26 Jun 2025 16:24:12 +0000 (18:24 +0200)]
pg_dump: include comments on valid not-null constraints, too
We were missing collecting comments for not-null constraints that are
dumped inline with the table definition (i.e., valid ones), because they
aren't represented by a separately dumpable object. Fix by creating
separate TocEntries for the comments.
Fujii Masao [Thu, 26 Jun 2025 11:25:34 +0000 (20:25 +0900)]
Make CREATE TABLE LIKE copy comments on NOT NULL constraints when requested.
Commit 14e87ffa5c5 introduced support for adding comments to NOT NULL
constraints. However, CREATE TABLE LIKE INCLUDING COMMENTS did not copy
these comments to the new table. This was an oversight in that commit.
This commit corrects the behavior by ensuring CREATE TABLE LIKE to also copy
the comments on NOT NULL constraints when INCLUDING COMMENTS is specified.
Dean Rasheed [Thu, 26 Jun 2025 09:13:00 +0000 (10:13 +0100)]
doc: Updates for RETURNING OLD/NEW.
Fix a couple of sentences in the documentation that were missed in
commit 80feb727c8.
Author: Dean Rasheed <dean.a.rasheed@gmail.com> Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://postgr.es/m/CAEZATCUcqADJuapZSjPf2b6hFJ6AGOUwefRvh8Ht3UZoqqw69Q@mail.gmail.com
Dean Rasheed [Thu, 26 Jun 2025 08:36:05 +0000 (09:36 +0100)]
doc: Fix indentation of MERGE synopsis.
The convention in the documentation for other SQL commands is to
indent continuation lines and sub-clauses in the "Synopsis" section by
4 spaces, so do the same for MERGE.
Richard Guo [Thu, 26 Jun 2025 03:17:12 +0000 (12:17 +0900)]
Expand virtual generated columns for ALTER COLUMN TYPE
For the subcommand ALTER COLUMN TYPE of the ALTER TABLE command, the
USING expression may reference virtual generated columns. These
columns must be expanded before the expression is fed through
expression_planner and the expression-execution machinery. Failing to
do so can result in incorrect rewrite decisions, and can also lead to
"ERROR: unexpected virtual generated column reference".
Reported-by: Alexander Lakhin <exclusion@gmail.com> Reviewed-by: jian he <jian.universality@gmail.com>
Discussion: https://postgr.es/m/b5f96b24-ccac-47fd-9e20-14681b894f36@gmail.com
Peter Eisentraut [Wed, 25 Jun 2025 10:44:03 +0000 (12:44 +0200)]
doc: Some copy-editing around constraint validation and enforcement
Author: Robert Treat <rob@xzilla.net> Reviewed-by: jian he <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CACJufxFo4yTwzbSZrP%2BzQiR6_M00skoZMFaUnNJCdY6he%3DuQfA%40mail.gmail.com
Peter Eisentraut [Wed, 25 Jun 2025 07:55:04 +0000 (09:55 +0200)]
Restrict virtual columns to use built-in functions and types
Just like selecting from a view is exploitable (CVE-2024-7348),
selecting from a table with virtual generated columns is exploitable.
Users who are concerned about this can avoid selecting from views, but
telling them to avoid selecting from tables is less practical.
To address this, this changes it so that generation expressions for
virtual generated columns are restricted to using built-in functions
and types, and the columns are restricted to having a built-in type.
We assume that built-in functions and types cannot be exploited for
this purpose.
In the future, this could be expanded by some new mechanism to declare
other functions and types as safe or trusted for this purpose, but
that is to be designed.
(An alternative approach might have been to expand the
restrict_nonsystem_relation_kind GUC to handle this, like the fix for
CVE-2024-7348. But that is kind of an ugly approach. That fix had to
fit in the constraints of fixing an ancient vulnerability in all
branches. Since virtual generated columns are new, we're free from
the constraints of the past, and we can and should use cleaner
options.)
Reported-by: Feike Steenbergen <feikesteenbergen@gmail.com> Reviewed-by: jian he <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAK_s-G2Q7de8Q0qOYUR%3D_CTB5FzzVBm5iZjOp%2BmeVWpMpmfO0w%40mail.gmail.com
Amit Kapila [Wed, 25 Jun 2025 04:55:15 +0000 (10:25 +0530)]
Doc: Improve documentation of stream abort.
Protocol v4 introduces parallel streaming, which allows Stream Abort
messages to include additional abort information such as LSN and
timestamp. However, the current documentation only states, "This field is
available since protocol version 4," which may misleadingly suggest that
the fields are always present when using protocol v4.
This patch clarifies that the abort LSN and timestamp are included only
when parallel streaming is enabled, even under protocol v4.
Author: Anthonin Bonnefoy <anthonin.bonnefoy@datadoghq.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Backpatch-through: 16, where it was introduced
Discussion: https://postgr.es/m/CAO6_XqoKteQR1AnaR8iPcegbBE+HkAc2-g12rxN04yOt4-2ORg@mail.gmail.com
Michael Paquier [Wed, 25 Jun 2025 01:03:46 +0000 (10:03 +0900)]
Avoid scribbling of VACUUM options
This fixes two issues with the handling of VacuumParams in vacuum_rel().
This code path has the idea to change the passed-in pointer of
VacuumParams for the "truncate" and "index_cleanup" options for the
relation worked on, impacting the two following scenarios where
incorrect options may be used because a VacuumParams pointer is shared
across multiple relations:
- Multiple relations in a single VACUUM command.
- TOAST relations vacuumed with their main relation.
The problem is avoided by providing to the two callers of vacuum_rel()
copies of VacuumParams, before the pointer is updated for the "truncate"
and "index_cleanup" options.
The refactoring of the VACUUM option and parameters done in 0d831389749a
did not introduce an issue, but it has encouraged the problem we are
dealing with in this commit, with b84dbc8eb80b for "truncate" and a96c41feec6b for "index_cleanup" that have been added a couple of years
after the initial refactoring. HEAD will be improved with a different
patch that hardens the uses of VacuumParams across the tree. This
cannot be backpatched as it introduces an ABI breakage.
The backend portion of the patch has been authored by Nathan, while I
have implemented the tests. The tests rely on injection points to check
the option values, making them faster, more reliable than the tests
originally proposed by Shihao, and they also provide more coverage.
This part can only be backpatched down to v17.
Fujii Masao [Wed, 25 Jun 2025 00:02:31 +0000 (09:02 +0900)]
doc: Fix type description of io_workers GUC for consistency.
The documentation previously described the type of the io_workers GUC
parameter as "int". However, the documentation consistently uses "integer"
for parameters of this type.
This commit updates the type description of io_workers to "integer"
for consistency with other GUC parameter descriptions.
Fujii Masao [Wed, 25 Jun 2025 00:01:13 +0000 (09:01 +0900)]
doc: Mention ANALYZE VERBOSE in track_cost_delay_timing description.
The documentation for track_cost_delay_timing describes where cost-based
vacuum delay timing information is displayed when the setting is enabled.
While this information is also shown in the output of ANALYZE VERBOSE,
that was previously omitted from the list.
This commit updates the documentation to include ANALYZE VERBOSE in the list,
clarifying that it also reports cost-based delay timing information.
Fujii Masao [Tue, 24 Jun 2025 23:59:25 +0000 (08:59 +0900)]
doc: Add secondary index entries for vacuum-related parameters.
For parameters that exist as both configuration and storage options,
the documentation typically includes secondary index entries to
help users distinguish and locate the relevant references easily.
However, such index entries were missing for vacuum_truncate and
vacuum_max_eager_freeze_failure_rate, both introduced in v18.
This commit adds appropriate secondary index terms for these parameters
to ensure consistency with other parameters and improve usability of
the documentation index.
Tom Lane [Tue, 24 Jun 2025 18:14:04 +0000 (14:14 -0400)]
Prevent excessive delays before launching new logrep workers.
The logical replication launcher process would sometimes sleep
for as much as 3 minutes before noticing that it is supposed
to launch a new worker. This could happen if
(1) WaitForReplicationWorkerAttach absorbed a process latch wakeup
that was meant to cause ApplyLauncherMain to do work, or
(2) logicalrep_worker_launch reported failure, either because of
resource limits or because the new worker terminated immediately.
In case (2), the expected behavior is that we retry the launch after
wal_retrieve_retry_interval, but that didn't reliably happen.
It's not clear how often such conditions would occur in the field,
but in our subscription test suite they are somewhat common,
especially in tests that exercise cases that cause quick worker
failure. That causes the tests to take substantially longer than
they ought to do on typical setups.
To fix (1), make WaitForReplicationWorkerAttach re-set the latch
before returning if it cleared it while looping. To fix (2), ensure
that we reduce wait_time to no more than wal_retrieve_retry_interval
when logicalrep_worker_launch reports failure. In passing, fix a
couple of perhaps-hypothetical race conditions, e.g. examining
worker->in_use without a lock.
Backpatch to v16. Problem (2) didn't exist before commit 5a3a95385
because the previous code always set wait_time to
wal_retrieve_retry_interval when launching a worker, regardless of
success or failure of the launch. That behavior also greatly
mitigated problem (1), so I'm not excited about adapting the remainder
of the patch to the substantially-different code in older branches.
Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Discussion: https://postgr.es/m/817604.1750723007@sss.pgh.pa.us
Backpatch-through: 16
Álvaro Herrera [Tue, 24 Jun 2025 17:36:32 +0000 (19:36 +0200)]
Make query jumbling also squash PARAM_EXTERN params
Commit 62d712ecfd94 made query jumbling squash lists of Consts as a
single element, but there's no reason not to treat PARAM_EXTERN
parameters the same. For these purposes, these values are indeed
constants for any particular execution of a query.
In particular, this should make list squashing more useful for
applications using extended query protocol, which would use parameters
extensively.
A complication arises: if a query has both external parameters and
squashable lists, then the parameter number used as placeholder for the
squashed list might be inconsistent with regards to the parameter
numbers used by the query literal. To reduce the surprise factor, all
parameters are renumbered starting from 1 in that case.
Author: Sami Imseih <samimseih@gmail.com>
Author: Dmitry Dolgov <9erthalion6@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CAA5RZ0tRXoPG2y6bMgBCWNDt0Tn=unRerbzYM=oW0syi1=C1OA@mail.gmail.com
Álvaro Herrera [Tue, 24 Jun 2025 17:36:12 +0000 (19:36 +0200)]
Improve jumble squashing through CoerceViaIO and RelabelType
There's no principled reason for query jumbling to only remove the first
layer of RelabelType and CoerceViaIO. Change it to see through as many
layers as there are.
Melanie Plageman [Tue, 24 Jun 2025 13:20:16 +0000 (09:20 -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 test is coverage for a case fixed in 83c39a1f7f3. The test was
originally committed to master in aa607980aee but later reverted in efcbb76efe4 due to test instability.
The test requires multiple index passes. In Postgres 17+, vacuum uses a
TID store for the dead TIDs that is very space efficient. With the old
minimum maintenance_work_mem of 1 MB, it required a large number of dead
rows to generate enough dead TIDs to force multiple index
vacuuming passes. Once the source code changes were made to allow a
minimum maintenance_work_mem value of 64kB, the test could be made much
faster and more stable.
Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: John Naylor <johncnaylorls@gmail.com> Reviewed-by: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAAKRu_ZJBkidusDut6i%3DbDCiXzJEp93GC1%2BNFaZt4eqanYF3Kw%40mail.gmail.com
Backpatch-through: 17
The link returns 404 and no replacement is available in the project
on Sourceforge where the content once was. Since we already link to
resources for both beginner and experienced docs hackers, remove the
the dead link.
Backpatch to all supported versions as the link was added in 8.1.
Author: Daniel Gustafsson <daniel@yesql.se> Reviewed-by: Magnus Hagander <magnus@hagander.net> Reviewed-by: Michael Paquier <michael@paquier.xyz> Reported-by: jian he <jian.universality@gmail.com>
Discussion: https://postgr.es/m/CACJufxH=YzQPDOe+2WuYZ7seD-BOyjCBmP6JiErpoSiVZWDRnw@mail.gmail.com
Backpatch-through: 13
Peter Eisentraut [Tue, 24 Jun 2025 09:30:49 +0000 (11:30 +0200)]
Fix virtual generated column type checking for ALTER TABLE
Virtual generated columns have some special checks in
CheckAttributeType(), mainly to check that domains are not used. But
this check was only applied during CREATE TABLE, not during ALTER
TABLE. This fixes that.
Reported-by: jian he <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/CACJufxE0KHR__-h=zHXbhSNZXMMs4LYo4-dbj8H3YoStYBok1Q@mail.gmail.com
Fujii Masao [Tue, 24 Jun 2025 05:21:10 +0000 (14:21 +0900)]
doc: Fix incorrect UUID index entry in function documentation.
Previously, the UUID functions documentation defined the "UUID" index entry
to link to the UUID data type page, even though that entry already exists there.
Instead, the UUID functions page should define its own index entry linking
to itself.
This commit updates the UUID index entry in the UUID functions documentation
to point to the correct section, improving navigation and avoiding duplication.
Michael Paquier [Tue, 24 Jun 2025 04:12:46 +0000 (13:12 +0900)]
psql: Rename meta-command \close to \close_prepared
\close has been introduced in d55322b0da60 to be able to close a
prepared statement using the extended protocol in psql. Per discussion,
the name "close" is ambiguous. At the SQL level, CLOSE is used to close
a cursor. At protocol level, the close message can be used to either
close a statement or a portal.
This patch renames \close to \close_prepared to avoid any ambiguity and
make it clear that this is used to close a prepared statement. This new
name has been chosen based on the feedback from the author and the
reviewers.
This new test was intended to check the handling of the replication slot's
restart lsn fixed in ca307d5cec90. However, it also reveals another issue
related to logical decoding. This commit temporarily removes this test to
keep the buildfarm and CFbot green and avoid distorting others' work. This
test will be restored once we investigate and fix the issue.
Remove excess assert from InvalidatePossiblyObsoleteSlot()
ca307d5cec90 introduced keeping WAL segments by slot's last saved restart LSN.
It also added an assertion that the slot's restart LSN never goes backward.
However, situations when the restart LSN goes backward have been spotted by
buildfarm animals and investigated in the thread.
When pg_receivewal starts the replication, it sets the last replayed LSN to
the beginning of the segment, which is older than what
ReplicationSlotReserveWal() set for the slot. A similar situation can happen
to pg_basebackup. When standby reconnects to the primary, it sends the last
replayed LSN, which might be older than the last confirmed flush LSN. In
both these situations, a concurrent checkpoint may trigger an assert trap.
Based on ideas from Vitaly Davydov <v.davydov@postgrespro.ru>,
Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com>,
Vignesh C <vignesh21@gmail.com>,
Amit Kapila <amit.kapila16@gmail.com>.
Reported-by: Vignesh C <vignesh21@gmail.com> Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CALDaNm3s-jpQTe1MshsvQ8GO%3DTLj233JCdkQ7uZ6pwqRVpxAdw%40mail.gmail.com Reviewed-by: Vignesh C <vignesh21@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Tom Lane [Mon, 23 Jun 2025 15:50:21 +0000 (11:50 -0400)]
Include _mm512_zextsi128_si512() in AVX-512 configure probes.
Commit 43da39430 added a dependency on this intrinsic to our
AVX-512 CRC code. It turns out this intrinsic was added to
gcc later than the other ones we were using, so that there
are platforms where the new code fails to compile. Since only
relatively old (pre-gcc-10) compilers are affected, it doesn't
seem worth trying to make the AVX-512 CRC code actually work
on these platforms. Just add the new intrinsic to the configure
probe, so that we'll conclude the code can't be built.
Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://postgr.es/m/3350336.1750690281@sss.pgh.pa.us
John Naylor [Mon, 23 Jun 2025 11:03:56 +0000 (18:03 +0700)]
Properly fix AVX-512 CRC calculation bug
The problem that led to the workaround in f83f14881c7 was not in fact
a compiler bug, but a failure to zero the upper bits of the vector
register containing the initial scalar CRC value. Fix that and revert
the workaround.
Tom Lane [Sat, 21 Jun 2025 16:52:37 +0000 (12:52 -0400)]
Doc: improve documentation about width_bucket().
Specify whether the bucket bounds are inclusive or exclusive,
and improve some other vague language. Explain the behavior that
occurs when the "low" bound is greater than the "high" bound.
Make width_bucket_numeric's comment more like that for
width_bucket_float8, in particular noting that infinite
bounds are rejected (since they became possible in v14).
Reported-by: Ben Peachey Higdon <bpeacheyhigdon@gmail.com>
Author: Robert Treat <rob@xzilla.net> Co-authored-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Discussion: https://postgr.es/m/2BD74F86-5B89-4AC1-8F13-23CED3546AC1@gmail.com
Backpatch-through: 13
Commit 85e5e222b, which added (a forerunner of) this logic,
argued that
Adding the necessary complexity to make this work doesn't seem like
it would be repaid in significantly better plans, because in cases
where such a PHV exists, there is probably a corresponding join order
constraint that would allow a good plan to be found without using the
star-schema exception.
The flaw in this claim is that there may be other join-order
restrictions that prevent us from finding a join order that doesn't
involve a "dangerous" PHV. In particular we now recognize that
small join_collapse_limit or from_collapse_limit could prevent it.
Therefore, let's bite the bullet and make the case work.
We don't have to extend the executor's support for nestloop parameters
as I thought at the time, because we can instead push the evaluation
of the placeholder's expression into the left-hand input of the
NestLoop node. So there's not really a lot of downside to this
solution, and giving the planner more join-order flexibility should
have value beyond just avoiding failure.
Having said that, there surely is a nonzero risk of introducing
new bugs. Since this failure mode escaped detection for ten years,
such cases don't seem common enough to justify a lot of risk.
Therefore, let's put this fix into master but leave the back branches
alone (for now anyway).
Bug: #18953 Reported-by: Alexander Lakhin <exclusion@gmail.com> Diagnosed-by: Richard Guo <guofenglinux@gmail.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/18953-1c9883a9d4afeb30@postgresql.org
Tom Lane [Fri, 20 Jun 2025 17:41:11 +0000 (13:41 -0400)]
Use SnapshotDirty when checking for conflicting index names.
While choosing an autogenerated name for an index, look for
pre-existing relations using a SnapshotDirty snapshot, instead of the
previous behavior that considered only committed-good pg_class rows.
This allows us to detect and avoid conflicts against indexes that are
still being built.
It's still possible to fail due to a race condition, but the window
is now just the amount of time that it takes DefineIndex to validate
all its parameters, call smgrcreate(), and enter the index's pg_class
row. Formerly the race window covered the entire time needed to
create and fill an index, which could be very long if the table is
large. Worse, if the conflicting index creation is part of a larger
transaction, it wouldn't be visible till COMMIT.
So this isn't a complete solution, but it should greatly ameliorate
the problem, and the patch is simple enough to be back-patchable.
It might at some point be useful to do the same for pg_constraint
entries (cf. ChooseConstraintName, ConstraintNameExists, and related
functions). However, in the absence of field complaints, I'll leave
that alone for now. The relation-name test should be good enough for
index-based constraints, while foreign-key constraints seem to be okay
since they require exclusive locks to create.
Bug: #18959 Reported-by: Maximilian Chrzan <maximilian.chrzan@here.com>
Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Dilip Kumar <dilipbalaut@gmail.com>
Discussion: https://postgr.es/m/18959-f63b53b864bb1417@postgresql.org
Backpatch-through: 13
Improve runtime and output of tests for replication slots checkpointing.
The TAP tests that verify logical and physical replication slot behavior
during checkpoints (046_checkpoint_logical_slot.pl and
047_checkpoint_physical_slot.pl) inserted two batches of 2 million rows each,
generating approximately 520 MB of WAL. On slow machines, or when compiled
with '-DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE', this caused the
tests to run for 8-9 minutes and occasionally time out, as seen on the
buildfarm animal prion.
This commit modifies the mentioned tests to utilize the $node->advance_wal()
function, thereby reducing runtime. Once we do not use the generated data,
the proposed function is a good alternative, which cuts the total wall-clock
run time.
While here, remove superfluous '\n' characters from several note() calls;
these appeared literally in the build-farm logs and looked odd. Also, remove
excessive 'shared_preload_libraries' GUC from the config and add a check for
'injection_points' extension availability.
Reported-by: Alexander Lakhin <exclusion@gmail.com> Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Author: Alexander Korotkov <aekorotkov@gmail.com>
Author: Vitaly Davydov <v.davydov@postgrespro.ru> Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://postgr.es/m/fbc5d94e-6fbd-4a64-85d4-c9e284a58eb2%40gmail.com
Backpatch-through: 17
Jeff Davis [Thu, 19 Jun 2025 19:43:27 +0000 (12:43 -0700)]
Correct docs about partitions and EXCLUDE constraints.
In version 17 we added support for cross-partition EXCLUDE
constraints, as long as they included all partition key columns and
compared them with equality (see 8c852ba9a4). I updated the docs for
exclusion constraints, but I missed that the docs for CREATE TABLE
still said that they were not supported. This commit fixes that.
Author: Paul A. Jungwirth <pj@illuminatedcomputing.com> Co-authored-by: Jeff Davis <pgsql@j-davis.com>
Discussion: https://postgr.es/m/c955d292-b92d-42d1-a2a0-1ec6715a2546@illuminatedcomputing.com
Backpatch-through: 17
Peter Eisentraut [Thu, 19 Jun 2025 11:53:12 +0000 (13:53 +0200)]
Improve pg_dump/pg_dumpall help synopses and terminology
Increase consistency of --help and man page synopses between pg_dump
and pg_dumpall. These should now be very similar, as pg_dumpall can
now also produce non-text dump output. But actually, they had drifted
further apart.
- Use verb "export" consistently, instead of "dump" or "extract".
- Use "SQL script" instead of just "script" or "text file".
- Maintain consistent distinction between SQL script and other
formats/archives (which is relevant for pg_restore).
Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://www.postgresql.org/message-id/flat/3f71d8a7-095b-4829-9b0b-fce09e9866b3%40eisentraut.org
Amit Kapila [Thu, 19 Jun 2025 04:18:08 +0000 (09:48 +0530)]
Improve log messages and docs for slot synchronization.
Improve the clarity of LOG messages when a failover logical slot
synchronization fails, making the reasons more explicit for easier
debugging.
Update the documentation to outline scenarios where slot synchronization
can fail, especially during the initial sync, and emphasize that
pg_sync_replication_slot() is primarily intended for testing and
debugging purposes.
We also discussed improving the functionality of
pg_sync_replication_slot() so that it can be used reliably, but we would
take up that work for next version after some more discussion and review.
Reported-by: Suraj Kharage <suraj.kharage@enterprisedb.com>
Author: shveta malik <shveta.malik@gmail.com> Reviewed-by: Zhijie Hou <houzj.fnst@fujitsu.com> Reviewed-by: Peter Smith <smithpb2250@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Backpatch-through: 17, where it was introduced
Discussion: https://postgr.es/m/CAF1DzPWTcg+m+x+oVVB=y4q9=PYYsL_mujVp7uJr-_oUtWNGbA@mail.gmail.com
Fujii Masao [Thu, 19 Jun 2025 00:12:34 +0000 (09:12 +0900)]
doc: Mention GIN indexes support parallel builds.
Commit 8492feb98f6 added support for parallel CREATE INDEX on GIN indexes.
However, previously two places in the documentation and two in the source
code comments still stated that only B-tree and BRIN indexes support
parallel builds.
This commit updates those references to correctly include GIN indexes.
Author: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://postgr.es/m/7d27d068-90e2-4022-9bd7-09b0fd3d4f47@oss.nttdata.com
Fujii Masao [Thu, 19 Jun 2025 00:07:19 +0000 (09:07 +0900)]
doc: Fix incorrect description of INCLUDING COMMENTS in CREATE FOREIGN TABLE.
Commit 302cf157592 added support for LIKE in CREATE FOREIGN TABLE.
In this feature, since indexes are not created for foreign tables,
comments on indexes are not copied either.
However, the documentation incorrectly stated that index comments
would be copied when using INCLUDING COMMENTS. This commit
corrects that by removing the mention of index comments.
Author: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/f86cd84f-a6a3-4451-bae7-5cca9e63b06d@oss.nttdata.com
Bruce Momjian [Wed, 18 Jun 2025 20:48:26 +0000 (16:48 -0400)]
doc: fix for commit 09f7d36ba16 in changing "_" to "-".
I thought underscores wouldn't even work in "id"s, so I never checked to
see if anything referenced it, but it seems it does work, so adjust the
calling site for the dash syntax.
Fujii Masao [Wed, 18 Jun 2025 05:53:55 +0000 (14:53 +0900)]
pg_dump: Allow pg_dump to dump the statistics for foreign tables.
Commit 1fd1bd87101 introduced support for dumping statistics with
pg_dump and pg_dumpall, covering tables, materialized views, and indexes.
However, it overlooked foreign tables, even though functions like
pg_restore_relation_stats() support them.
This commit fixes that oversight by allowing pg_dump and pg_dumpall
to include statistics for foreign tables.
Fujii Masao [Wed, 18 Jun 2025 00:18:40 +0000 (09:18 +0900)]
doc: Reorder protocol version option descriptions in libpq docs.
Commit 285613c60a7 introduced the min_protocol_version and
max_protocol_version connection options for libpq, but their descriptions
were placed in the middle of the unrelated ssl_min_protocol_version and
ssl_max_protocol_version entries.
This commit moves the min_protocol_version and max_protocol_version
descriptions to appear after the SSL-related options. This improves
the logical order and makes it easier for users to locate the relevant
settings in the libpq documentation.
The memory allocation for cancelConn->be_cancel_key was accidentally
checking the be_cancel_key member in the conn object instead of the
one in cancelConn.
Author: Ranier Vilela <ranier.vf@gmail.com> Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/CAEudQAq4ySDR6dsg9xwurBXwud02hX7XCOZZAcZx-JMn6A06nA@mail.gmail.com
projects / thirdparty / postgresql.git / log
