Andrew Dunstan [Sat, 14 Sep 2024 12:37:08 +0000 (08:37 -0400)]
Only define NO_THREAD_SAFE_LOCALE for MSVC plperl when required
Latest versions of Strawberry Perl define USE_THREAD_SAFE_LOCALE, and we
therefore get a handshake error when building against such instances.
The solution is to perform a test to see if USE_THREAD_SAFE_LOCALE is
defined and only define NO_THREAD_SAFE_LOCALE if it isn't.
Backpatch the meson.build fix back to release 16 and apply the same
logic to Mkvcbuild.pm in releases 12 through 16.
Original report of the issue from Muralikrishna Bandaru.
Tom Lane [Fri, 13 Sep 2024 20:16:47 +0000 (16:16 -0400)]
Allow _h_indexbuild() to be interrupted.
When we are building a hash index that is large enough to need
pre-sorting (larger than either maintenance_work_mem or NBuffers),
the initial sorting phase is interruptible, but the insertion
phase wasn't. Add the missing CHECK_FOR_INTERRUPTS().
Per bug #18616 from Alexander Lakhin. Back-patch to all
supported branches.
Pavel Borisov
Discussion: https://postgr.es/m/18616-
acbb9e5caf41e964@postgresql.org
Nathan Bossart [Fri, 13 Sep 2024 15:16:40 +0000 (10:16 -0500)]
Fix contrib/pageinspect's test for sequences.
I managed to break this test in two different ways in commit
05036a3155.
First, the output of the new call to tuple_data_split() on the test
sequence is dependent on endianness. This is fixed by setting a
special start value for the test sequence that produces the same
output regardless of the endianness of the machine.
Second, on versions older than v15, the new test case fails under
"force_parallel_mode = regress" with the following error:
ERROR: cannot access temporary tables during a parallel operation
This is because pageinspect's disk-accessing functions are
incorrectly marked PARALLEL SAFE on versions older than v15 (see
commit
aeaaf520f4 for details). This one is fixed by changing the
test sequence to be permanent. The only reason it was previously
marked temporary was to avoid needing a DROP SEQUENCE command at
the end of the test. Unlike some other tests in this file, the use
of a permanent sequence here shouldn't result in any test
instability like what was fixed by commit
e2933a6e11.
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/ZuOKOut5hhDlf_bP%40nathan
Backpatch-through: 12
Nathan Bossart [Thu, 12 Sep 2024 21:31:29 +0000 (16:31 -0500)]
Reintroduce support for sequences in pgstattuple and pageinspect.
Commit
4b82664156 restricted a number of functions provided by
contrib modules to only relations that use the "heap" table access
method. Sequences always use this table access method, but they do
not advertise as such in the pg_class system catalog, so the
aforementioned commit also (presumably unintentionally) removed
support for sequences from some of these functions. This commit
reintroduces said support for sequences to these functions and adds
a couple of relevant tests.
Co-authored-by: Ayush Vatsa
Reviewed-by: Robert Haas, Michael Paquier, Matthias van de Meent
Discussion: https://postgr.es/m/CACX%2BKaP3i%2Bi9tdPLjF5JCHVv93xobEdcd_eB%2B638VDvZ3i%3DcQA%40mail.gmail.com
Backpatch-through: 12
David Rowley [Thu, 12 Sep 2024 10:37:54 +0000 (22:37 +1200)]
Doc: alphabetize aggregate function table
A few recent JSON aggregates have been added without much consideration
to the existing order. Put these back in alphabetical order (with the
exception of the JSONB variant of each JSON aggregate).
Author: Wolfgang Walther <
[email protected]>
Reviewed-by: Marlene Reiterer <[email protected]>
Discussion: https://postgr.es/m/
6a7b910c-3feb-4006-b817-
9b4759cb6bb6%40technowledgy.de
Backpatch-through: 16, where these aggregates were added
Tom Lane [Wed, 11 Sep 2024 15:41:47 +0000 (11:41 -0400)]
Remove incorrect Assert.
check_agglevels_and_constraints() asserted that if we find an
aggregate function in an EXPR_KIND_FROM_SUBSELECT expression, the
expression must be in a LATERAL subquery. Alexander Lakhin found a
case where that's not so: because of the odd scoping rules for NEW/OLD
within a rule, a reference to NEW/OLD could cause an aggregate to be
considered top-level even though it's in an unmarked sub-select.
The error message that would be thrown seems sufficiently on-point,
so just remove the Assert. (Hence, this is not a bug for production
builds.)
This Assert was added by me in commit
eaccfded9 (9.3 era). It looks
like I put it in to cross-check that the new logic for detecting
misplaced aggregates (using agglevelsup) caught the same cases that a
previous check on p_lateral_active did. So there might have been some
related misbehavior before
eaccfded9 ... but that's very ancient
history by now, so I didn't dig any deeper.
Per bug #18608 from Alexander Lakhin. Back-patch to all supported
branches.
Discussion: https://postgr.es/m/18608-
48de0717508ee429@postgresql.org
Tomas Vondra [Wed, 11 Sep 2024 11:21:05 +0000 (13:21 +0200)]
Fix unique key checks in JSON object constructors
When building a JSON object, the code builds a hash table of keys, to
allow checking if the keys are unique. The uniqueness check and adding
the new key happens in json_unique_check_key(), but this assumes the
pointer to the key remains valid.
Unfortunately, two places passed pointers to keys in a buffer, while
also appending more data (additional key/value pairs) to the buffer.
With enough data the buffer is resized by enlargeStringInfo(), which
calls repalloc(), invalidating the earlier key pointers.
Due to this the uniqueness check may fail with both false negatives and
false positives, producing JSON objects with duplicate keys or failing
to produce a perfectly valid JSON object.
This affects multiple functions that enforce uniqueness of keys, all
introduced in PG16 with the new SQL/JSON:
- json_object_agg_unique / jsonb_object_agg_unique
- json_object / jsonb_objectagg
Existing regression tests did not detect the issue, simply because the
initial buffer size is 1024 and the objects were small enough not to
require the repalloc.
With a sufficiently large object, AddressSanitizer reported the access
to invalid memory immediately. So would valgrind, of course.
Fixed by copying the key into the hash table memory context, and adding
regression tests with enough data to repalloc the buffer. Backpatch to
16, where the functions were introduced.
Reported by Alexander Lakhin. Investigation and initial fix by Junwang
Zhao, with various improvements and tests by me.
Reported-by: Alexander Lakhin
Author: Junwang Zhao, Tomas Vondra
Backpatch-through: 16
Discussion: https://postgr.es/m/18598-
3279ed972a2347c7@postgresql.org
Discussion: https://postgr.es/m/CAEG8a3JjH0ReJF2_O7-8LuEbO69BxPhYeXs95_x7+H9AMWF1gw@mail.gmail.com
Tom Lane [Tue, 10 Sep 2024 20:20:31 +0000 (16:20 -0400)]
Fix some whitespace issues in XMLSERIALIZE(... INDENT).
We must drop whitespace while parsing the input, else libxml2
will include "blank" nodes that interfere with the desired
indentation behavior. The end result is that we didn't indent
nodes separated by whitespace.
Also, it seems that libxml2 may add a trailing newline when working
in DOCUMENT mode. This is semantically insignificant, so strip it.
This is in the gray area between being a bug fix and a definition
change. However, the INDENT option is still pretty new (since v16),
so I think we can get away with changing this in stable branches.
Hence, back-patch to v16.
Jim Jones
Discussion: https://postgr.es/m/
872865a8-548b-48e1-bfcd-
4e38e672c1e4@uni-muenster.de
Michael Paquier [Mon, 9 Sep 2024 04:50:02 +0000 (13:50 +0900)]
Fix waits of REINDEX CONCURRENTLY for indexes with predicates or expressions
As introduced by
f9900df5f94, a REINDEX CONCURRENTLY job done for an
index with predicates or expressions would set PROC_IN_SAFE_IC in its
MyProc->statusFlags, causing it to be ignored by other concurrent
operations.
Such concurrent index rebuilds should never be ignored, as a predicate
or an expression could call a user-defined function that accesses a
different table than the table where the index is rebuilt.
A test that uses injection points is added, backpatched down to 17.
Michail has proposed a different test, but I have added something
simpler with more coverage.
Oversight in
f9900df5f949.
Author: Michail Nikolaev
Discussion: https://postgr.es/m/CANtu0oj9A3kZVduFTG0vrmGnKB+DCHgEpzOp0qAyOgmks84j0w@mail.gmail.com
Backpatch-through: 14
Tom Lane [Fri, 6 Sep 2024 15:57:57 +0000 (11:57 -0400)]
Fix incorrect pg_stat_io output on 32-bit machines.
pg_stat_get_io() applied TimestampTzGetDatum twice to the
stat_reset_timestamp value. On 64-bit builds that's harmless because
TimestampTzGetDatum is a no-op, but on 32-bit builds it results in
displaying garbage in the stats_reset column of the pg_stat_io view.
Bug dates to commit
a9c70b46d which introduced pg_stat_io, so
back-patch to v16 where that came in.
Bertrand Drouvot
Discussion: https://postgr.es/m/
[email protected]
Tom Lane [Thu, 5 Sep 2024 16:42:33 +0000 (12:42 -0400)]
Prevent mis-encoding of "trailing junk after numeric literal" errors.
Since commit
2549f0661, we reject an identifier immediately following
a numeric literal (without separating whitespace), because that risks
ambiguity with hex/octal/binary integers. However, that patch used
token patterns like "{integer}{ident_start}", which is problematic
because {ident_start} matches only a single byte. If the first
character after the integer is a multibyte character, this ends up
with flex reporting an error message that includes a partial multibyte
character. That can cause assorted bad-encoding problems downstream,
both in the report to the client and in the postmaster log file.
To fix, use {identifier} not {ident_start} in the "junk" token
patterns, so that they will match complete multibyte characters.
This seems generally better user experience quite aside from the
encoding problem: for "123abc" the error message will now say that
the error appeared at or near "123abc" instead of "123a".
While at it, add some commentary about why these patterns exist
and how they work.
Report and patch by Karina Litskevich; review by Pavel Borisov.
Back-patch to v15 where the problem came in.
Discussion: https://postgr.es/m/CACiT8iZ_diop=0zJ7zuY3BXegJpkKK1Av-PU7xh0EDYHsa5+=g@mail.gmail.com
Thomas Munro [Sat, 31 Aug 2024 02:32:08 +0000 (14:32 +1200)]
Stabilize 039_end_of_wal test.
The first test was sensitive to the insert LSN after setting up the
catalogs, which depended on environmental things like the locales on the
OS and usernames. Switch to a new WAL file before the first test, as a
simple way to put every computer into the same state.
Back-patch to all supported releases.
Reported-by: Anton Voloshin <[email protected]>
Reported-by: Nathan Bossart <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Reviewed-by: Nathan Bossart <[email protected]>
Discussion: https://postgr.es/m/
b26aeac2-cb6d-4633-a7ea-
945baae83dcf%40postgrespro.ru
Masahiko Sawada [Fri, 30 Aug 2024 22:06:04 +0000 (15:06 -0700)]
Clarify restrict_nonsystem_relation_kind description.
This change improves the description of the
restrict_nonsystem_relation_kind parameter in guc_table.c and the
documentation for better clarity.
Backpatch to 12, where this GUC parameter was introduced.
Reviewed-by: Peter Eisentraut
Discussion: https://postgr.es/m/
6a96f1af-22b4-4a80-8161-
1f26606b9ee2%40eisentraut.org
Backpatch-through: 12
Tom Lane [Fri, 30 Aug 2024 16:42:13 +0000 (12:42 -0400)]
Avoid inserting PlaceHolderVars in cases where pre-v16 PG did not.
Commit
2489d76c4 removed some logic from pullup_replace_vars()
that avoided wrapping a PlaceHolderVar around a pulled-up
subquery output expression if the expression could be proven
to go to NULL anyway (because it contained Vars or PHVs of the
pulled-up relation and did not contain non-strict constructs).
But removing that logic turns out to cause performance regressions
in some cases, because the extra PHV blocks subexpression folding,
and will do so even if outer-join reduction later turns it into a
no-op with no phnullingrels bits. This can for example prevent
an expression from being matched to an index.
The reason for always adding a PHV was to ensure we had someplace
to put the varnullingrels marker bits of the Var being replaced.
However, it turns out we can optimize in exactly the same cases that
the previous code did, because we can instead attach the needed
varnullingrels bits to the contained Var(s)/PHV(s).
This is not a complete solution --- it would be even better if we
could remove PHVs after reducing them to no-ops. It doesn't look
practical to back-patch such an improvement, but this change seems
safe and at least gets rid of the performance-regression cases.
Per complaint from Nikhil Raj. Back-patch to v16 where the
problem appeared.
Discussion: https://postgr.es/m/CAG1ps1xvnTZceKK24OUfMKLPvDP2vjT-d+F2AOCWbw_v3KeEgg@mail.gmail.com
Tom Lane [Thu, 29 Aug 2024 17:24:17 +0000 (13:24 -0400)]
Fix mis-deparsing of ORDER BY lists when there is a name conflict.
If an ORDER BY item in SELECT is a bare identifier, the parser
first seeks it as an output column name of the SELECT (for SQL92
compatibility). However, ruleutils.c is expecting the SQL99
interpretation where such a name is an input column name. So it's
possible to produce an incorrect display of a view in the (admittedly
pretty ill-advised) case where some other column is renamed in the
SELECT output list to match an ORDER BY column.
This can be fixed by table-qualifying such names in the dumped
view text. To avoid cluttering less-ill-advised queries, we'd
like to do so only when there's an actual name conflict.
That requires passing the current get_query_def call's resultDesc
parameter down to get_variable, so that it can determine what
the output column names are. In hopes of reducing rather than
increasing notational clutter in ruleutils.c, I moved that value
into the deparse_context struct and removed it from the parameter
lists of get_query_def's other subroutines.
I made a few other cosmetic changes while at it:
* Likewise move the colNamesVisible parameter into deparse_context.
* Rename deparse_context's windowTList field to targetList,
since it's no longer used only in connection with WINDOW clauses.
* Replace the special_exprkind field with a bool inGroupBy,
since that was all it was being used for, and the apparent
flexibility of storing a ParseExprKind proved to be illusory.
(We need a separate varInOrderBy field to make this patch work.)
* Remove useless save/restore logic in get_select_query_def.
In principle, this bug is quite old. However, it seems unreachable
before
1b4d280ea, because before that the presence of "new" and "old"
entries in a view's rangetable caused us to always table-qualify every
Var reference in dumped views. Hence, back-patch to v16 where that
came in.
Per bug #18589 from Quynh Tran.
Discussion: https://postgr.es/m/18589-
70091cb81db1a3f1@postgresql.org
Peter Eisentraut [Thu, 29 Aug 2024 06:38:29 +0000 (08:38 +0200)]
Disallow USING clause when altering type of generated column
This does not make sense. It would write the output of the USING
clause into the converted column, which would violate the generation
expression. This adds a check to error out if this is specified.
There was a test for this, but that test errored out for a different
reason, so it was not effective.
Reported-by: Jian He <[email protected]>
Reviewed-by: Yugo NAGATA <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/
c7083982-69f4-4b14-8315-
f9ddb20b9834%40eisentraut.org
Amit Kapila [Wed, 21 Aug 2024 03:31:11 +0000 (09:01 +0530)]
Don't advance origin during apply failure.
We advance origin progress during abort on successful streaming and
application of ROLLBACK in parallel streaming mode. But the origin
shouldn't be advanced during an error or unsuccessful apply due to
shutdown. Otherwise, it will result in a transaction loss as such a
transaction won't be sent again by the server.
Reported-by: Hou Zhijie
Author: Hayato Kuroda and Shveta Malik
Reviewed-by: Amit Kapila
Backpatch-through: 16
Discussion: https://postgr.es/m/TYAPR01MB5692FAC23BE40C69DA8ED4AFF5B92@TYAPR01MB5692.jpnprd01.prod.outlook.com
Alvaro Herrera [Tue, 20 Aug 2024 21:53:40 +0000 (17:53 -0400)]
Minor wording change in table "JSON Creation Functions"
For readability. Backpatch to 16.
Author: Erik Wienhold <
[email protected]>
Discussion: https://postgr.es/m/
8ddac732-d650-4958-b9c9-
ea8e6116251e@ewie.name
Nathan Bossart [Tue, 20 Aug 2024 18:43:20 +0000 (13:43 -0500)]
Fix a couple of wait event descriptions.
The descriptions for ProcArrayGroupUpdate and XactGroupUpdate claim
that these events mean we are waiting for the group leader "at end
of a parallel operation," but neither pertains to parallel
operations. This commit reverts these descriptions to their
wording before commit
3048898e73, i.e., "end of a parallel
operation" is changed to "transaction end."
Author: Sameer Kumar
Reviewed-by: Amit Kapila
Discussion: https://postgr.es/m/CAGPeHmh6UMrKQHKCmX%2B5vV5TH9P%3DKw9en3k68qEem6J%3DyrZPUA%40mail.gmail.com
Backpatch-through: 13
John Naylor [Tue, 20 Aug 2024 03:02:34 +0000 (10:02 +0700)]
Document limit on the number of out-of-line values per table
Document the hard limit stemming from the size of an OID, and also
mention the perfomance impact that occurs before the hard limit
is reached.
Jakub Wartak and Robert Haas
Backpatch to all supported versions
Discussion: https://postgr.es/m/CAKZiRmwWhp2yxjqJLwbBjHdfbJBcUmmKMNAZyBjjtpgM9AMatQ%40mail.gmail.com
Alvaro Herrera [Mon, 19 Aug 2024 20:09:10 +0000 (16:09 -0400)]
Avoid failure to open dropped detached partition
When a partition is detached and immediately dropped, a prepared
statement could try to compute a new partition descriptor that includes
it. This leads to this kind of error:
ERROR: could not open relation with OID 457639
Avoid this by skipping the partition in expand_partitioned_rtentry if it
doesn't exist.
Noted by me while investigating bug #18559. Kuntal Gosh helped to
identify the exact failure.
Backpatch to 14, where DETACH CONCURRENTLY was introduced.
Author: Álvaro Herrera <
[email protected]>
Reviewed-by: Kuntal Ghosh <[email protected]>
Reviewed-by: Junwang Zhao <[email protected]>
Discussion: https://postgr.es/m/
202408122233[email protected]
Tomas Vondra [Mon, 19 Aug 2024 11:31:51 +0000 (13:31 +0200)]
Explain dropdb can't use syscache because of TOAST
Add a comment explaining dropdb() can't rely on syscache. The issue with
flattened rows was fixed by commit
0f92b230f88b, but better to have
a clear explanation why the systable scan is necessary. The other places
doing in-place updates on pg_database have the same comment.
Suggestion and patch by Yugo Nagata. Backpatch to 12, same as the fix.
Author: Yugo Nagata
Backpatch-through: 12
Discussion: https://postgr.es/m/CAJTYsWWNkCt+-UnMhg=BiCD3Mh8c2JdHLofPxsW3m2dkDFw8RA@mail.gmail.com
Daniel Gustafsson [Mon, 19 Aug 2024 10:55:11 +0000 (12:55 +0200)]
Fix regression in TLS session ticket disabling
Commit
274bbced disabled session tickets for TLSv1.3 on top of the
already disabled TLSv1.2 session tickets, but accidentally caused
a regression where TLSv1.2 session tickets were incorrectly sent.
Fix by unconditionally disabling TLSv1.2 session tickets and only
disable TLSv1.3 tickets when the right version of OpenSSL is used.
Backpatch to all supported branches.
Reported-by: Cameron Vogt <[email protected]>
Reported-by: Fire Emerald <[email protected]>
Reviewed-by: Jacob Champion <[email protected]>
Discussion: https://postgr.es/m/DM6PR16MB3145CF62857226F350C710D1AB852@DM6PR16MB3145.namprd16.prod.outlook.com
Backpatch-through: v12
Thomas Munro [Mon, 19 Aug 2024 09:21:03 +0000 (21:21 +1200)]
Fix harmless LC_COLLATE[_MASK] confusion.
Commit
ca051d8b101 called newlocale(LC_COLLATE, ...) instead of
newlocale(LC_COLLATE_MASK, ...), in code reached only on FreeBSD. They
have the same value on that OS, explaining why it worked. Fix.
Back-patch to 14, where
ca051d8b101 landed.
Thomas Munro [Sun, 18 Aug 2024 23:47:37 +0000 (11:47 +1200)]
ci: Upgrade MacPorts version to 2.10.1.
MacPorts version 2.9.3 started failing in our ci_macports_packages.sh
script, for reasons not fully determined, but plausibly linked to the
release of 2.10.1. 2.10.1 seems to work, so let's switch to it.
Back-patch to 15, where CI began.
Reported-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/
81f104e8-f0a9-43c0-85bd-
2bbbf590a5b8%40eisentraut.org
Tomas Vondra [Sun, 18 Aug 2024 22:04:41 +0000 (00:04 +0200)]
Fix DROP DATABASE for databases with many ACLs
Commit
c66a7d75e652 modified DROP DATABASE so that if interrupted, the
database is known to be in an invalid state and can only be dropped.
This is done by setting a flag using an in-place update, so that it's
not lost in case of rollback.
For databases with many ACLs, this may however fail like this:
ERROR: wrong tuple length
This happens because with many ACLs, the pg_database.datacl attribute
gets TOASTed. The dropdb() code reads the tuple from the syscache, which
means it's detoasted. But the in-place update expects the tuple length
to match the on-disk tuple.
Fixed by reading the tuple from the catalog directly, not from syscache.
Report and fix by Ayush Tiwari. Backpatch to 12. The DROP DATABASE fix
was backpatched to 11, but 11 is EOL at this point.
Reported-by: Ayush Tiwari
Author: Ayush Tiwari
Reviewed-by: Tomas Vondra
Backpatch-through: 12
Discussion: https://postgr.es/m/CAJTYsWWNkCt+-UnMhg=BiCD3Mh8c2JdHLofPxsW3m2dkDFw8RA@mail.gmail.com
Bruce Momjian [Sat, 17 Aug 2024 02:50:54 +0000 (22:50 -0400)]
docs: fix incorrect plpgsql error message
Change "$1" to "username".
Reported-by: [email protected]
Discussion: https://postgr.es/m/
172112109590.736590.
12219129462878821880@wrigleys.postgresql.org
Backpatch-through: 12
Alvaro Herrera [Mon, 12 Aug 2024 22:17:56 +0000 (18:17 -0400)]
Fix creation of partition descriptor during concurrent detach+drop
If a partition undergoes DETACH CONCURRENTLY immediately followed by
DROP, this could cause a problem for a concurrent transaction
recomputing the partition descriptor when running a prepared statement,
because it tries to dereference a pointer to a tuple that's not found in
a catalog scan.
The existing retry logic added in commit
dbca3469ebf8 is sufficient to
cope with the overall problem, provided we don't try to dereference a
non-existant heap tuple.
Arguably, the code in RelationBuildPartitionDesc() has been wrong all
along, since no check was added in commit
898e5e3290a7 against receiving
a NULL tuple from the catalog scan; that bug has only become
user-visible with DETACH CONCURRENTLY which was added in branch 14.
Therefore, even though there's no known mechanism to cause a crash
because of this, backpatch the addition of such a check to all supported
branches. In branches prior to 14, this would cause the code to fail
with a "missing relpartbound for relation XYZ" error instead of
crashing; that's okay, because there are no reports of such behavior
anyway.
Author: Kuntal Ghosh <
[email protected]>
Reviewed-by: Junwang Zhao <[email protected]>
Reviewed-by: Tender Wang <[email protected]>
Discussion: https://postgr.es/m/18559-
b48286d2eacd9a4e@postgresql.org
Tom Lane [Sun, 11 Aug 2024 16:24:56 +0000 (12:24 -0400)]
Suppress Coverity warnings about Asserts in get_name_for_var_field.
Coverity thinks dpns->plan could be null at these points. That
shouldn't really be possible, but it's easy enough to modify the
Asserts so they'd not core-dump if it were true.
These are new in
b919a97a6. Back-patch to v13; the v12 version
of the patch didn't have these Asserts.
Tom Lane [Sat, 10 Aug 2024 19:51:28 +0000 (15:51 -0400)]
Allow adjusting session_authorization and role in parallel workers.
The code intends to allow GUCs to be set within parallel workers
via function SET clauses, but not otherwise. However, doing so fails
for "session_authorization" and "role", because the assign hooks for
those attempt to set the subsidiary "is_superuser" GUC, and that call
falls foul of the "not otherwise" prohibition. We can't switch to
using GUC_ACTION_SAVE for this, so instead add a new GUC variable
flag GUC_ALLOW_IN_PARALLEL to mark is_superuser as being safe to set
anyway. (This is okay because is_superuser has context PGC_INTERNAL
and thus only hard-wired calls can change it. We'd need more thought
before applying the flag to other GUCs; but maybe there are other
use-cases.) This isn't the prettiest fix perhaps, but other
alternatives we thought of would be much more invasive.
While here, correct a thinko in commit
059de3ca4: when rejecting
a GUC setting within a parallel worker, we should return 0 not -1
if the ereport doesn't longjmp. (This seems to have no consequences
right now because no caller cares, but it's inconsistent.) Improve
the comments to try to forestall future confusion of the same kind.
Despite the lack of field complaints, this seems worth back-patching.
Thanks to Nathan Bossart for the idea to invent a new flag,
and for review.
Discussion: https://postgr.es/m/
2833457.
1723229039@sss.pgh.pa.us
Nathan Bossart [Fri, 9 Aug 2024 15:52:37 +0000 (10:52 -0500)]
doc: Fix name of CRC algorithm in "Reliability" section.
This section claims we use CRC-32 for WAL records and two-phase
state files, but we've actually used CRC-32C since v9.5 (commit
5028f22f6e). Fix that.
Reviewed-by: Robert Haas
Discussion: https://postgr.es/m/ZrUFpLP-w2zTAHqq%40nathan
Backpatch-through: 12
Tom Lane [Fri, 9 Aug 2024 15:21:39 +0000 (11:21 -0400)]
Fix "failed to find plan for subquery/CTE" errors in EXPLAIN.
To deparse a reference to a field of a RECORD-type output of a
subquery, EXPLAIN normally digs down into the subquery's plan to try
to discover exactly which anonymous RECORD type is meant. However,
this can fail if the subquery has been optimized out of the plan
altogether on the grounds that no rows could pass the WHERE quals,
which has been possible at least since
3fc6e2d7f. There isn't
anything remaining in the plan tree that would help us, so fall back
to printing the field name as "fN" for the N'th column of the record.
(This will actually be the right thing some of the time, since it
matches the column names we assign to RowExprs.)
In passing, fix a comment typo in create_projection_plan, which
I noticed while experimenting with an alternative fix for this.
Per bug #18576 from Vasya B. Back-patch to all supported branches.
Richard Guo and Tom Lane
Discussion: https://postgr.es/m/18576-
9feac34e132fea9e@postgresql.org
Alvaro Herrera [Thu, 8 Aug 2024 23:35:13 +0000 (19:35 -0400)]
Refuse ATTACH of a table referenced by a foreign key
Trying to attach a table as a partition which is already on the
referenced side of a foreign key on the partitioned table that it is
being attached to, leads to strange behavior: we try to clone the
foreign key from the parent to the partition, but this new FK points to
the partition itself, and the mix of pg_constraint rows and triggers
doesn't behave well.
Rather than trying to untangle the mess (which might be possible given
sufficient time), I opted to forbid the ATTACH. This doesn't seem a
problematic restriction, given that we already fail to create the
foreign key if you do it the other way around, that is, having the
partition first and the FK second.
Backpatch to all supported branches.
Reported-by: Alexander Lakhin <[email protected]>
Reviewed-by: Tender Wang <[email protected]>
Discussion: https://postgr.es/m/18541-
628a61bc267cd2d3@postgresql.org
Heikki Linnakangas [Thu, 8 Aug 2024 07:20:25 +0000 (10:20 +0300)]
Fix pg_rewind debug output to print the source timeline history
getTimelineHistory() is called twice, to read the source and the
target timeline history files. However, the loop to print the file
with the --debug option used the wrong variable when dealing with the
source. As a result, the source's history was always printed as empty.
Spotted while debugging bug #18575, but this does not fix that bug,
just the debugging output. Backpatch to all supported versions.
Discussion: https://www.postgresql.org/message-id/
092dd515-b7b4-4fd0-8407-
ceca2f02f6ec@iki.fi
Peter Eisentraut [Wed, 7 Aug 2024 07:21:07 +0000 (09:21 +0200)]
Revert ECPG's use of pnstrdup()
Commit
0b9466fce added a dependency on fe_memutils' pnstrdup() inside
informix.c. This adds an exit() path in a library, which we don't
want. (Unlike libpq, the ecpg libraries don't have an automated check
for that, but it makes sense to keep them to a similar standard.) The
ecpg code can already handle failure results from the *strdup() call
by itself.
Author: Jacob Champion <
[email protected]>
Discussion: https://www.postgresql.org/message-id/CAOYmi+=pg=W5L1h=3MEP_EB24jaBu2FyATrLXqQHGe7cpuvwyg@mail.gmail.com
Tom Lane [Wed, 7 Aug 2024 16:54:39 +0000 (12:54 -0400)]
Fix edge case in plpgsql's make_callstmt_target().
If the plancache entry for the CALL statement is already stale,
it's possible for us to fetch an old procedure OID out of it,
and then fail with "cache lookup failed for function NNN".
In ordinary usage this never happens because make_callstmt_target
is called just once immediately after building the plancache
entry. It can be forced however by setting up an erroneous CALL
(that causes make_callstmt_target itself to report an error),
then dropping/recreating the target procedure, then repeating
the erroneous CALL.
To fix, use SPI_plan_get_cached_plan() to fetch the plancache's
plan, rather than assuming we can use SPI_plan_get_plan_sources().
This shouldn't add any noticeable overhead in the normal case,
and in the stale-plan case we'd have had to replan anyway a little
further down.
The other callers of SPI_plan_get_plan_sources() seem OK, because
either they don't need up-to-date plans or they know that the
query was just (re) planned. But add some commentary in hopes
of not falling into this trap again.
Per bug #18574 from Song Hongyu. Back-patch to v14 where this coding
was introduced. (Older branches have comparable code, but it's run
after any required replanning, so there's no issue.)
Discussion: https://postgr.es/m/18574-
2ce7ba3249221389@postgresql.org
Heikki Linnakangas [Wed, 7 Aug 2024 07:43:52 +0000 (10:43 +0300)]
Make fallback MD5 implementation thread-safe on big-endian systems
Replace a static scratch buffer with a local variable, because a
static buffer makes the function not thread-safe. This function is
used in client-code in libpq, so it needs to be thread-safe. It was
until commit
b67b57a966, which replaced the implementation with the
one from pgcrypto.
Backpatch to v14, where we switched to the new implementation.
Reviewed-by: Robert Haas, Michael Paquier
Discussion: https://www.postgresql.org/message-id/
dfa2015d-ad21-4802-a4cc-
3850fc5fff3f@iki.fi
Tom Lane [Mon, 5 Aug 2024 20:05:35 +0000 (16:05 -0400)]
Stamp 16.4.
Tom Lane [Mon, 5 Aug 2024 18:03:20 +0000 (14:03 -0400)]
Last-minute updates for release notes.
Security: CVE-2024-7348
Masahiko Sawada [Mon, 5 Aug 2024 13:05:28 +0000 (06:05 -0700)]
Restrict accesses to non-system views and foreign tables during pg_dump.
When pg_dump retrieves the list of database objects and performs the
data dump, there was possibility that objects are replaced with others
of the same name, such as views, and access them. This vulnerability
could result in code execution with superuser privileges during the
pg_dump process.
This issue can arise when dumping data of sequences, foreign
tables (only 13 or later), or tables registered with a WHERE clause in
the extension configuration table.
To address this, pg_dump now utilizes the newly introduced
restrict_nonsystem_relation_kind GUC parameter to restrict the
accesses to non-system views and foreign tables during the dump
process. This new GUC parameter is added to back branches too, but
these changes do not require cluster recreation.
Back-patch to all supported branches.
Reviewed-by: Noah Misch
Security: CVE-2024-7348
Backpatch-through: 12
Peter Eisentraut [Mon, 5 Aug 2024 10:16:19 +0000 (12:16 +0200)]
Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash:
2a4e0c192e2738ce2451e6d6970dcb2210d31800
Tom Lane [Sun, 4 Aug 2024 17:38:59 +0000 (13:38 -0400)]
Release notes for 16.4, 15.8, 14.13, 13.16, 12.20.
Tom Lane [Fri, 2 Aug 2024 20:24:17 +0000 (16:24 -0400)]
First-draft release notes for 16.4.
As usual, the release notes for other branches will be made by cutting
these down, but put them up for community review first.
Thomas Munro [Sun, 12 May 2024 19:55:20 +0000 (07:55 +1200)]
Skip citext_utf8 test on Windows.
Back-patch of commit
cff4e5a3 to 15 and 16, per request from Oleg
Tselebrovskiy. Original commit message:
On other Windows build farm animals it is already skipped because they
don't use UTF-8 encoding. On "hamerkop", UTF-8 is used, and then the
test fails.
It is not clear to me (a non-Windows person looking only at buildfarm
evidence) whether Windows is less sophisticated than other OSes and
doesn't know how to downcase Turkish İ with the standard Unicode
database, or if it is more sophisticated than other systems and uses
locale-specific behavior like ICU does.
Whichever the reason, the result is the same: we need to skip the test
on Windows, just as we already do for ICU, at least until a
Windows-savvy developer comes up with a better idea. The technique for
detecting the OS is borrowed from collate.windows.win1252.sql.
This was anticipated by commit
c2e8bd27, but the problem only surfaced
when Windows build farm animals started using Meson.
Reviewed-by: Tom Lane <[email protected]>
Discussion: https://postgr.es/m/CA%2BhUKGJ1LeC3aE2qQYTK95rFVON3ZVoTQpTKJqxkHdtEyawH4A%40mail.gmail.com
Etsuro Fujita [Thu, 1 Aug 2024 08:45:02 +0000 (17:45 +0900)]
Update comment in portal.h.
We store tuples into the portal's tuple store for a PORTAL_ONE_MOD_WITH
query as well.
Back-patch to all supported branches.
Reviewed by Andy Fan.
Discussion: https://postgr.es/m/CAPmGK14HVYBZYZtHabjeCd-e31VT%3Dwx6rQNq8QfehywLcpZ2Hw%40mail.gmail.com
Tom Lane [Thu, 1 Aug 2024 00:54:59 +0000 (20:54 -0400)]
Revert "Allow parallel workers to cope with a newly-created session user ID."
This reverts commit
849326e49a5dd56941eb8fb4699130c301bff303.
Some buildfarm animals are failing with "cannot change
"client_encoding" during a parallel operation". It looks like
assign_client_encoding is unhappy at being asked to roll back a
client_encoding setting after a parallel worker encounters a
failure. There must be more to it though: why didn't I see this
during local testing? In any case, it's clear that moving the
RestoreGUCState() call is not as side-effect-free as I thought.
Given that the bug
f5f30c22e intended to fix has gone unreported
for years, it's not something that's urgent to fix; I'm not
willing to risk messing with it further with only days to our
next release wrap.
Tom Lane [Wed, 31 Jul 2024 22:54:10 +0000 (18:54 -0400)]
Allow parallel workers to cope with a newly-created session user ID.
Parallel workers failed after a sequence like
BEGIN;
CREATE USER foo;
SET SESSION AUTHORIZATION foo;
because check_session_authorization could not see the uncommitted
pg_authid row for "foo". This is because we ran RestoreGUCState()
in a separate transaction using an ordinary just-created snapshot.
The same disease afflicts any other GUC that requires catalog lookups
and isn't forgiving about the lookups failing.
To fix, postpone RestoreGUCState() into the worker's main transaction
after we've set up a snapshot duplicating the leader's. This affects
check_transaction_isolation and check_transaction_deferrable, which
think they should only run during transaction start. Make them
act like check_transaction_read_only, which already knows it should
silently accept the value when InitializingParallelWorker.
Per bug #18545 from Andrey Rachitskiy. Back-patch to all
supported branches, because this has been wrong for awhile.
Discussion: https://postgr.es/m/18545-
feba138862f19aaa@postgresql.org
David Rowley [Wed, 31 Jul 2024 13:26:55 +0000 (01:26 +1200)]
Doc: mention executor memory usage for enable_partitionwise* GUCs
Prior to this commit, the docs for enable_partitionwise_aggregate and
enable_partitionwise_join mentioned the additional overheads enabling
these causes for the query planner, but they mentioned nothing about the
possible surge in work_mem-consuming executor nodes that could end up in
the final plan. Dimitrios reported the OOM killer intervened on his
query as a result of using enable_partitionwise_aggregate=on.
Here we adjust the docs to mention the possible increase in the number of
work_mem-consuming executor nodes that can appear in the final plan as a
result of enabling these GUCs.
Reported-by: Dimitrios Apostolou
Reviewed-by: Ashutosh Bapat
Discussion: https://postgr.es/m/
3603c380-d094-136e-e333-
610914fb3e80%40gmx.net
Discussion: https://postgr.es/m/CAApHDvoZ0_yqwPFEpb6h261L76BUpmh5GxBQq0LeRzQ5Jh3zzg@mail.gmail.com
Backpatch-through: 12, oldest supported version
Jeff Davis [Tue, 30 Jul 2024 23:23:20 +0000 (16:23 -0700)]
Relax check for return value from second call of pg_strnxfrm().
strxfrm() is not guaranteed to return the exact number of bytes needed
to store the result; it may return a higher value.
Discussion: https://postgr.es/m/
32f85d88d1f64395abfe5a10dd97a62a4d3474ce[email protected]
Reviewed-by: Heikki Linnakangas
Backpatch-through: 16
Melanie Plageman [Mon, 29 Jul 2024 19:37:32 +0000 (15:37 -0400)]
Add accidentally omitted test to meson build file
01e2b7f0fd02a44e introduced a test that vacuum correctly removes tuples
older than OldestXmin. The same commit was backpatched on 14-16, but 16
is the only version with meson and the test was mistakenly left off of
the recovery test meson build file. Add it now.
Discussion: https://postgr.es/m/CAAKRu_bWmMjmqL%2BOZ2duEQ80u7cRvpsExLNZNjzk-pXX5skwMQ%40mail.gmail.com
Melanie Plageman [Mon, 29 Jul 2024 19:37:26 +0000 (15:37 -0400)]
Use DELETE instead of UPDATE to speed up vacuum test
01e2b7f0fd02a44e introduced a test which generated dead tuples for
vacuum with an UPDATE. The test only required enough dead TIDs for two
rounds of index vacuuming. This can be accomplished with a DELETE
instead of an UPDATE -- which generates about 50% less WAL and makes the
test 20% faster in many cases. The test takes several seconds (more on
slow buildfarm animals) because we need quite a few tuples to trigger
two rounds of index vacuuming; so it is worth a follow-on commit to
speed it up.
Suggested-by: Masahiko Sawada
Discussion: https://postgr.es/m/CAAKRu_bWmMjmqL%2BOZ2duEQ80u7cRvpsExLNZNjzk-pXX5skwMQ%40mail.gmail.com
Backpatch-through: 14, the first version containing this test.
David Rowley [Sun, 28 Jul 2024 10:23:54 +0000 (22:23 +1200)]
Fix incorrect return value for pg_size_pretty(bigint)
pg_size_pretty(bigint) would return the value in bytes rather than PB
for the smallest-most bigint value. This happened due to an incorrect
assumption that the absolute value of -
9223372036854775808 could be
stored inside a signed 64-bit type.
Here we fix that by instead storing that value in an unsigned 64-bit type.
This bug does exist in versions prior to 15 but the code there is
sufficiently different and the bug seems sufficiently non-critical that
it does not seem worth risking backpatching further.
Author: Joseph Koshakow <
[email protected]>
Discussion: https://postgr.es/m/CAAvxfHdTsMZPWEHUrZ=h3cky9Ccc3Mtx2whUHygY+ABP-mCmUw@mail.gmail.com
Backpatch-through: 15
Peter Eisentraut [Sun, 28 Jul 2024 07:12:00 +0000 (09:12 +0200)]
libpq: Use strerror_r instead of strerror
Commit
453c4687377 introduced a use of strerror() into libpq, but that
is not thread-safe. Fix by using strerror_r() instead.
In passing, update some of the code comments added by
453c4687377, as
we have learned more about the reason for the change in OpenSSL that
started this.
Reviewed-by: Daniel Gustafsson <[email protected]>
Discussion: Discussion: https://postgr.es/m/
b6fb018b-f05c-4afd-abd3-
318c649faf18@highgo.ca
Heikki Linnakangas [Sat, 27 Jul 2024 10:53:16 +0000 (13:53 +0300)]
Support falling back to non-preferred readline implementation with meson
To build with -Dreadline=enabled one can use either readline or
libedit. The -Dlibedit_preferred flag is supposed to control the order
of names to lookup. This works fine when either both libraries are
present or -Dreadline is set to auto. However, explicitly enabling
readline with only libedit present, but not setting libedit_preferred,
or alternatively enabling readline with only readline present, but
setting libedit_preferred, too, are both broken. This is because
cc.find_library will throw an error for a not found dependency as soon
as the first required dependency is checked, thus it's impossible to
fallback to the alternative.
Here we only check the second of the two dependencies for
requiredness, thus we only fail when none of the two can be found.
Author: Wolfgang Walther
Reviewed-by: Nazir Bilal Yavuz, Alvaro Herrera, Peter Eisentraut
Reviewed-by: Tristan Partin
Discussion: https://www.postgresql.org/message-id/
ca8f37e1-a2c3-40e2-91f6-
59c3d3652ad4@technowledgy.de
Backpatch: 16-, where meson support was added
Heikki Linnakangas [Sat, 27 Jul 2024 10:53:14 +0000 (13:53 +0300)]
Support absolute bindir/libdir in regression tests with meson
Passing an absolute bindir/libdir will install the binaries and
libraries to <build>/tmp_install/<bindir> and
<build>/tmp_install/<libdir> respectively.
This path is correctly passed to the regression test suite via
configure/make, but not via meson, yet. This is because the "/"
operator in the following expression throws away the whole left side
when the right side is an absolute path:
test_install_location / get_option('libdir')
This was already correctly handled for dir_prefix, which is likely
absolute as well. This patch handles both bindir and libdir in the
same way - prefixing absolute paths with the tmp_install path
correctly.
Author: Wolfgang Walther
Reviewed-by: Nazir Bilal Yavuz, Alvaro Herrera, Peter Eisentraut
Reviewed-by: Tristan Partin
Discussion: https://www.postgresql.org/message-id/
ca8f37e1-a2c3-40e2-91f6-
59c3d3652ad4@technowledgy.de
Backpatch: 16-, where meson support was added
Heikki Linnakangas [Sat, 27 Jul 2024 10:53:11 +0000 (13:53 +0300)]
Fallback to clang in PATH with meson
Some distributions put clang into a different path than the llvm
binary path.
For example, this is the case on NixOS / nixpkgs, which failed to find
clang with meson before this patch.
Author: Wolfgang Walther
Reviewed-by: Nazir Bilal Yavuz, Alvaro Herrera, Peter Eisentraut
Reviewed-by: Tristan Partin
Discussion: https://www.postgresql.org/message-id/
ca8f37e1-a2c3-40e2-91f6-
59c3d3652ad4@technowledgy.de
Backpatch: 16-, where meson support was added
Heikki Linnakangas [Sat, 27 Jul 2024 10:53:08 +0000 (13:53 +0300)]
Fallback to uuid for ossp-uuid with meson
The upstream name for the ossp-uuid package / pkg-config file is
"uuid". Many distributions change this to be "ossp-uuid" to not
conflict with e2fsprogs.
This lookup fails on distributions which don't change this name, for
example NixOS / nixpkgs. Both "ossp-uuid" and "uuid" are also checked
in configure.ac.
Author: Wolfgang Walther
Reviewed-by: Nazir Bilal Yavuz, Alvaro Herrera, Peter Eisentraut
Reviewed-by: Tristan Partin
Discussion: https://www.postgresql.org/message-id/
ca8f37e1-a2c3-40e2-91f6-
59c3d3652ad4@technowledgy.de
Backpatch: 16-, where meson support was added
Daniel Gustafsson [Fri, 26 Jul 2024 14:29:52 +0000 (16:29 +0200)]
Fix building with MSVC for TLS session disabling
Commit
274bbced85 omitted the required changes for the MSVC build
system in v16 through v12. Per buildfarm animal hamerkop.
Discussion: https://postgr.es/m/
7919238F-723C-4113-9742-
EBCE7A76A6B4@yesql.se
Daniel Gustafsson [Fri, 26 Jul 2024 14:29:47 +0000 (16:29 +0200)]
Fix macro placement in pg_config.h.in
Commit
274bbced85383e831dde accidentally placed the pg_config.h.in
for SSL_CTX_set_num_tickets on the wrong line wrt where autoheader
places it. Fix by re-arranging and backpatch to the same level as
the original commit.
Reported-by: Marina Polyakova <[email protected]>
Discussion: https://postgr.es/m/
48cebe8c3eaf308bae253b1dbf4e4a75@postgrespro.ru
Backpatch-through: v12
Daniel Gustafsson [Fri, 26 Jul 2024 09:09:45 +0000 (11:09 +0200)]
Disable all TLS session tickets
OpenSSL supports two types of session tickets for TLSv1.3, stateless
and stateful. The option we've used only turns off stateless tickets
leaving stateful tickets active. Use the new API introduced in 1.1.1
to disable all types of tickets.
Backpatch to all supported versions.
Reviewed-by: Heikki Linnakangas <[email protected]>
Reported-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/
20240617173803[email protected]
Backpatch-through: v12
Tom Lane [Thu, 25 Jul 2024 23:52:08 +0000 (19:52 -0400)]
Doc: fix misleading syntax synopses for targetlists.
In the syntax synopses for SELECT, INSERT, UPDATE, etc,
SELECT ... and RETURNING ... targetlists were missing { ... }
braces around an OR (|) operator. That allows misinterpretation
which could lead to confusion.
David G. Johnston, per gripe from
[email protected].
Discussion: https://postgr.es/m/
172193970148.915373.
2403176471224676074@wrigleys.postgresql.org
Thomas Munro [Thu, 25 Jul 2024 02:46:01 +0000 (14:46 +1200)]
ci: Pin MacPorts version to 2.9.3.
Commit
d01ce180 invented a new way to find the latest MacPorts version.
By bad luck, a new beta release has just been published, and it seems
to lack some packages we need. Go back to searching for this specific
version for now. We still search with a pattern so that we can find the
package for the running version of macOS, but for now we always look for
2.9.3. The code to do that had been anticipated already in a commented
out line, I just didn't expect to have to use it so soon...
Also include the whole MacPorts installation script in the cache key, so
that changes to the script cause a fresh installation. This should make
it a bit easier to reason about the effect of changes on cached state in
github accounts using CI, when we make adjustments.
Back-patch to 15, like
d01ce180.
Discussion: https://postgr.es/m/CA%2BhUKGLqJdv6RcwyZ_0H7khxtLTNJyuK%2BvDFzv3uwYbn8hKH6A%40mail.gmail.com
Thomas Munro [Wed, 24 Jul 2024 23:26:48 +0000 (11:26 +1200)]
ci: Upgrade macOS version from 13 to 14.
1. Previously we were using ghcr.io/cirruslabs/macos-XXX-base:latest
images, but Cirrus has started ignoring that and using a particular
image, currently ghcr.io/cirruslabs/macos-runner:sonoma, for github
accounts using free CI resources (as opposed to dedicated runner
machines, as cfbot uses). Let's just ask for that image anyway, to stay
in sync.
2. Instead of hard-coding a MacPorts installation URL, deduce it from
the running macOS version and the available releases. This removes the
need to keep the ci_macports_packages.sh in sync with .cirrus.task.yml,
and to advance the MacPorts version from time to time.
3. Change the cache key we use to cache the whole macports installation
across builds to include the OS major version, to trigger a fresh
installation when appropriate.
Back-patch to 15 where CI began.
Reviewed-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/CA%2BhUKGLqJdv6RcwyZ_0H7khxtLTNJyuK%2BvDFzv3uwYbn8hKH6A%40mail.gmail.com
Alvaro Herrera [Wed, 24 Jul 2024 12:13:55 +0000 (14:13 +0200)]
Fix a missing article in the documentation
Per complaint from Grant Gryczan.
It's a very old typo; backpatch all the way back.
Author: Laurenz Albe <
[email protected]>
Discussion: https://postgr.es/m/
172179789219.915368.
16590585529628354757@wrigleys.postgresql.org
Alvaro Herrera [Wed, 24 Jul 2024 10:38:18 +0000 (12:38 +0200)]
Reset relhassubclass upon attaching table as a partition
We don't allow inheritance parents as partitions, and have checks to
prevent this; but if a table _was_ in the past an inheritance parents
and all their children are removed, the pg_class.relhassubclass flag
may remain set, which confuses the partition pruning code (most
obviously, it results in an assertion failure; in production builds it
may be worse.)
Fix by resetting relhassubclass on attach.
Backpatch to all supported versions.
Reported-by: Alexander Lakhin <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Discussion: https://postgr.es/m/18550-
d5e047e9a897a889@postgresql.org
Nathan Bossart [Wed, 24 Jul 2024 02:59:02 +0000 (21:59 -0500)]
Detect integer overflow in array_set_slice().
When provided an empty initial array, array_set_slice() fails to
check for overflow when computing the new array's dimensions.
While such overflows are ordinarily caught by ArrayGetNItems(),
commands with the following form are accepted:
INSERT INTO t (i[-
2147483648:
2147483647]) VALUES ('{}');
To fix, perform the hazardous computations using overflow-detecting
arithmetic routines. As with commit
18b585155a, the added test
cases generate errors that include a platform-dependent value, so
we again use psql's VERBOSITY parameter to suppress printing the
message text.
Reported-by: Alexander Lakhin
Author: Joseph Koshakow
Reviewed-by: Jian He
Discussion: https://postgr.es/m/
31ad2cd1-db94-bdb3-f91a-
65ffdb4bef95%40gmail.com
Backpatch-through: 12
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
Andres Freund [Sat, 20 Jul 2024 20:51:09 +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 20:51:09 +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 20:51:09 +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 20:51:09 +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 14:44:42 +0000 (10:44 -0400)]
Test that vacuum removes tuples older than OldestXmin
If vacuum fails to prune a tuple killed before OldestXmin, it will later
find that tuple dead in lazy_scan_prune() and loop infinitely.
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.
Discussion of the bug: https://postgr.es/m/CAAKRu_Y_NJzF4-8gzTTeaOuUL3CcGoXPjXcAHbTTygT8AyVqag%40mail.gmail.com
Discussion of the test: https://postgr.es/m/CAAKRu_apNU2MPBK96V%2BbXjTq0RiZ-%3DA4ZTaysakpx9jxbq1dbQ%40mail.gmail.com
Author: Melanie Plageman
Reviewed-by: Peter Geoghegan
Melanie Plageman [Fri, 19 Jul 2024 14:44:36 +0000 (10:44 -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 will loop infinitely in lazy_scan_prune(), which compares tuples'
visibility information to OldestXmin.
Starting in version 14, which uses GlobalVisState for visibility testing
during pruning, 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.
Fix this by having vacuum always remove tuples older than OldestXmin
during pruning. 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.
Fixes BUG# 17257
Back-patched in versions 14-17
Author: Melanie Plageman
Reviewed-by: Noah Misch, Peter Geoghegan, Robert Haas, Andres Freund, and Heikki Linnakangas
Discussion: https://postgr.es/m/CAAKRu_Y_NJzF4-8gzTTeaOuUL3CcGoXPjXcAHbTTygT8AyVqag%40mail.gmail.com
Etsuro Fujita [Fri, 19 Jul 2024 04:15:03 +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 01:21:24 +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
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
Andres Freund [Mon, 15 Jul 2024 22:17:31 +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
Andres Freund [Mon, 15 Jul 2024 16:26:02 +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 16:26:02 +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 [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
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
Masahiko Sawada [Thu, 11 Jul 2024 13:48:18 +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
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 [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 16:52:52 +0000 (17:52 +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
Richard Guo [Mon, 8 Jul 2024 01:30:28 +0000 (10:30 +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
David Rowley [Sat, 6 Jul 2024 02:00:29 +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
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
Daniel Gustafsson [Thu, 4 Jul 2024 09:38:37 +0000 (11:38 +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