<feed xmlns='http://www.w3.org/2005/Atom'>
<title>delta/postgresql.git, branch REL_12_13</title>
<subtitle>git.postgresql.org: git/postgresql.git
</subtitle>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/'/>
<entry>
<title>Stamp 12.13.</title>
<updated>2022-11-07T21:47:13+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-07T21:47:13+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=26b9b5dddfa21ce73d9b99e79e2336c5584745bd'/>
<id>26b9b5dddfa21ce73d9b99e79e2336c5584745bd</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Translation updates</title>
<updated>2022-11-07T12:55:08+00:00</updated>
<author>
<name>Peter Eisentraut</name>
<email>peter@eisentraut.org</email>
</author>
<published>2022-11-07T12:55:08+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=81b2ffdb32385366aa45b13e669b7d1291770af0'/>
<id>81b2ffdb32385366aa45b13e669b7d1291770af0</id>
<content type='text'>
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: ff92e39b5698b83b8f5290094153a59df3056a1a
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: ff92e39b5698b83b8f5290094153a59df3056a1a
</pre>
</div>
</content>
</entry>
<entry>
<title>Release notes for 15.1, 14.6, 13.9, 12.13, 11.18, 10.23.</title>
<updated>2022-11-06T16:07:28+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-06T16:07:28+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=f658a93fdbf714fabba7dd780ce890028db3aa5a'/>
<id>f658a93fdbf714fabba7dd780ce890028db3aa5a</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Correct error message for row-level triggers with transition tables on partitioned tables.</title>
<updated>2022-11-04T10:15:06+00:00</updated>
<author>
<name>Etsuro Fujita</name>
<email>efujita@postgresql.org</email>
</author>
<published>2022-11-04T10:15:06+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=572695bcbcbd887fbf45653138e960831dd71db1'/>
<id>572695bcbcbd887fbf45653138e960831dd71db1</id>
<content type='text'>
"Triggers on partitioned tables cannot have transition tables." is
incorrect as we allow statement-level triggers on partitioned tables to
have transition tables.

This has been wrong since commit 86f575948; back-patch to v11 where that
commit came in.

Reviewed by Tom Lane.

Discussion: https://postgr.es/m/CAPmGK17gk4vXLzz2iG%2BG4LWRWCoVyam70nZ3OuGm1hMJwDrhcg%40mail.gmail.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
"Triggers on partitioned tables cannot have transition tables." is
incorrect as we allow statement-level triggers on partitioned tables to
have transition tables.

This has been wrong since commit 86f575948; back-patch to v11 where that
commit came in.

Reviewed by Tom Lane.

Discussion: https://postgr.es/m/CAPmGK17gk4vXLzz2iG%2BG4LWRWCoVyam70nZ3OuGm1hMJwDrhcg%40mail.gmail.com
</pre>
</div>
</content>
</entry>
<entry>
<title>Create FKs properly when attaching table as partition</title>
<updated>2022-11-03T19:40:21+00:00</updated>
<author>
<name>Alvaro Herrera</name>
<email>alvherre@alvh.no-ip.org</email>
</author>
<published>2022-11-03T19:40:21+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=ab70b3a52fde6f0519fc74f1aae1d7ad88cb16dd'/>
<id>ab70b3a52fde6f0519fc74f1aae1d7ad88cb16dd</id>
<content type='text'>
Commit f56f8f8da6af added some code in CloneFkReferencing that's way too
lax about a Constraint node it manufactures, not initializing enough
struct members -- initially_valid in particular was forgotten.  This
causes some FKs in partitions added by ALTER TABLE ATTACH PARTITION to
be marked as not validated.  Set initially_valid true, which fixes the
bug.

While at it, make the struct initialization more complete.  Very similar
code was added in two other places by the same commit; make them all
follow the same pattern for consistency, though no bugs are apparent
there.

This bug has never been reported: I only happened to notice while
working on commit 614a406b4ff1.  The test case that was added there with
the improper result is repaired.

Backpatch to 12.

Discussion: https://postgr.es/m/20221005105523.bhuhkdx4olajboof@alvherre.pgsql
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit f56f8f8da6af added some code in CloneFkReferencing that's way too
lax about a Constraint node it manufactures, not initializing enough
struct members -- initially_valid in particular was forgotten.  This
causes some FKs in partitions added by ALTER TABLE ATTACH PARTITION to
be marked as not validated.  Set initially_valid true, which fixes the
bug.

While at it, make the struct initialization more complete.  Very similar
code was added in two other places by the same commit; make them all
follow the same pattern for consistency, though no bugs are apparent
there.

This bug has never been reported: I only happened to notice while
working on commit 614a406b4ff1.  The test case that was added there with
the improper result is repaired.

Backpatch to 12.

Discussion: https://postgr.es/m/20221005105523.bhuhkdx4olajboof@alvherre.pgsql
</pre>
</div>
</content>
</entry>
<entry>
<title>Avoid crash after function syntax error in a replication worker.</title>
<updated>2022-11-03T16:01:57+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-03T16:01:57+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=d9ffccf8db4b5c1d4013d6ebd57d165057180342'/>
<id>d9ffccf8db4b5c1d4013d6ebd57d165057180342</id>
<content type='text'>
If a syntax error occurred in a SQL-language or PL/pgSQL-language
CREATE FUNCTION or DO command executed in a logical replication worker,
we'd suffer a null pointer dereference or assertion failure.  That
seems like a rather contrived case, but nonetheless worth fixing.

The cause is that function_parse_error_transpose assumes it must be
executing within the context of a Portal, but logical/worker.c
doesn't create a Portal since it's not running the standard executor.
We can just back off the hard Assert check and make it fail gracefully
if there's not an ActivePortal.  (I have a feeling that the aggressive
check here was my fault originally, probably because I wasn't sure if
the case would always hold and wanted to find out.  Well, now we know.)

The hazard seems to exist in all branches that have logical replication,
so back-patch to v10.

Maxim Orlov, Anton Melnikov, Masahiko Sawada, Tom Lane

Discussion: https://postgr.es/m/b570c367-ba38-95f3-f62d-5f59b9808226@inbox.ru
Discussion: https://postgr.es/m/adf0452f-8c6b-7def-d35e-ab516c80088e@inbox.ru
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If a syntax error occurred in a SQL-language or PL/pgSQL-language
CREATE FUNCTION or DO command executed in a logical replication worker,
we'd suffer a null pointer dereference or assertion failure.  That
seems like a rather contrived case, but nonetheless worth fixing.

The cause is that function_parse_error_transpose assumes it must be
executing within the context of a Portal, but logical/worker.c
doesn't create a Portal since it's not running the standard executor.
We can just back off the hard Assert check and make it fail gracefully
if there's not an ActivePortal.  (I have a feeling that the aggressive
check here was my fault originally, probably because I wasn't sure if
the case would always hold and wanted to find out.  Well, now we know.)

The hazard seems to exist in all branches that have logical replication,
so back-patch to v10.

Maxim Orlov, Anton Melnikov, Masahiko Sawada, Tom Lane

Discussion: https://postgr.es/m/b570c367-ba38-95f3-f62d-5f59b9808226@inbox.ru
Discussion: https://postgr.es/m/adf0452f-8c6b-7def-d35e-ab516c80088e@inbox.ru
</pre>
</div>
</content>
</entry>
<entry>
<title>Allow use of __sync_lock_test_and_set for spinlocks on any machine.</title>
<updated>2022-11-02T21:37:26+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-02T21:37:26+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=5ecf836e9b5e12e15cc2b9258c3dbd5ff4f7abc1'/>
<id>5ecf836e9b5e12e15cc2b9258c3dbd5ff4f7abc1</id>
<content type='text'>
If we have no special-case code in s_lock.h for the current platform,
but the compiler has __sync_lock_test_and_set, use that instead of
failing.  It's unlikely that anybody's __sync_lock_test_and_set
would be so awful as to be worse than our semaphore-based fallback,
but if it is, they can (continue to) use --disable-spinlocks.

This allows removal of the RISC-V special case installed by commit
c32fcac56, which generated exactly the same code but only on that
platform.  Usefully, the RISC-V buildfarm animals should now test
at least the int variant of this patch.

I've manually tested both variants on ARM by dint of removing the
ARM-specific stanza.  We don't want to drop that, because it already
has some special knowledge and is likely to grow more over time.
Likewise, this is not meant to preclude installing special cases
for other arches if that proves worthwhile.

Per discussion of a request to install the same code for loongarch64.
Like the previous patch, we might as well back-patch to supported
branches.

Discussion: https://postgr.es/m/761ac43d44b84d679ba803c2bd947cc0@HSMAILSVR04.hs.handsome.com.cn
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If we have no special-case code in s_lock.h for the current platform,
but the compiler has __sync_lock_test_and_set, use that instead of
failing.  It's unlikely that anybody's __sync_lock_test_and_set
would be so awful as to be worse than our semaphore-based fallback,
but if it is, they can (continue to) use --disable-spinlocks.

This allows removal of the RISC-V special case installed by commit
c32fcac56, which generated exactly the same code but only on that
platform.  Usefully, the RISC-V buildfarm animals should now test
at least the int variant of this patch.

I've manually tested both variants on ARM by dint of removing the
ARM-specific stanza.  We don't want to drop that, because it already
has some special knowledge and is likely to grow more over time.
Likewise, this is not meant to preclude installing special cases
for other arches if that proves worthwhile.

Per discussion of a request to install the same code for loongarch64.
Like the previous patch, we might as well back-patch to supported
branches.

Discussion: https://postgr.es/m/761ac43d44b84d679ba803c2bd947cc0@HSMAILSVR04.hs.handsome.com.cn
</pre>
</div>
</content>
</entry>
<entry>
<title>Fix copy-and-pasteo in comment.</title>
<updated>2022-11-02T09:15:06+00:00</updated>
<author>
<name>Etsuro Fujita</name>
<email>efujita@postgresql.org</email>
</author>
<published>2022-11-02T09:15:06+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=0008ad8517aefa0787c925718a88da8af1a683c1'/>
<id>0008ad8517aefa0787c925718a88da8af1a683c1</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Update time zone data files to tzdata release 2022f.</title>
<updated>2022-11-01T21:09:09+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-01T21:08:28+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=ec9a000d8b40b91f94212d7e58b186bd7138ec3c'/>
<id>ec9a000d8b40b91f94212d7e58b186bd7138ec3c</id>
<content type='text'>
DST law changes in Chile, Fiji, Iran, Jordan, Mexico, Palestine,
and Syria.  Historical corrections for Chile, Crimea, Iran, and
Mexico.

Also, the Europe/Kiev zone has been renamed to Europe/Kyiv
(retaining the old name as a link).

The following zones have been merged into nearby, more-populous zones
whose clocks have agreed since 1970: Antarctica/Vostok, Asia/Brunei,
Asia/Kuala_Lumpur, Atlantic/Reykjavik, Europe/Amsterdam,
Europe/Copenhagen, Europe/Luxembourg, Europe/Monaco, Europe/Oslo,
Europe/Stockholm, Indian/Christmas, Indian/Cocos, Indian/Kerguelen,
Indian/Mahe, Indian/Reunion, Pacific/Chuuk, Pacific/Funafuti,
Pacific/Majuro, Pacific/Pohnpei, Pacific/Wake and Pacific/Wallis.
(This indirectly affects zones that were already links to one of
these: Arctic/Longyearbyen, Atlantic/Jan_Mayen, Iceland,
Pacific/Ponape, Pacific/Truk, and Pacific/Yap.)  America/Nipigon,
America/Rainy_River, America/Thunder_Bay, Europe/Uzhgorod, and
Europe/Zaporozhye were also merged into nearby zones after discovering
that their claimed post-1970 differences from those zones seem to have
been errors.

While the IANA crew have been working on merging zones that have no
post-1970 differences for some time, this batch of changes affects
some zones that are significantly more populous than those merged
in the past, notably parts of Europe.  The loss of pre-1970 timezone
history for those zones may be troublesome for applications
expecting consistency of timestamptz display.  As an example, the
stored value '1944-06-01 12:00 UTC' would previously display as
'1944-06-01 13:00:00+01' if the Europe/Stockholm zone is selected,
but now it will read out as '1944-06-01 14:00:00+02'.

There exists a "packrat" option that will build the timezone data
files with this old data preserved, but the problem is that it also
resurrects a bunch of other, far less well-attested data; so much so
that actually more zones' contents change from 2022a with that option
than without it.  I have chosen not to do that here, for that reason
and because it appears that no major OS distributions are using the
"packrat" option, so that doing so would cause Postgres' behavior
to diverge significantly depending on whether it was built with
--with-system-tzdata.  However, for anyone for whom these changes pose
significant problems, there is a solution: build a set of timezone
files with the "packrat" option and use those with Postgres.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
DST law changes in Chile, Fiji, Iran, Jordan, Mexico, Palestine,
and Syria.  Historical corrections for Chile, Crimea, Iran, and
Mexico.

Also, the Europe/Kiev zone has been renamed to Europe/Kyiv
(retaining the old name as a link).

The following zones have been merged into nearby, more-populous zones
whose clocks have agreed since 1970: Antarctica/Vostok, Asia/Brunei,
Asia/Kuala_Lumpur, Atlantic/Reykjavik, Europe/Amsterdam,
Europe/Copenhagen, Europe/Luxembourg, Europe/Monaco, Europe/Oslo,
Europe/Stockholm, Indian/Christmas, Indian/Cocos, Indian/Kerguelen,
Indian/Mahe, Indian/Reunion, Pacific/Chuuk, Pacific/Funafuti,
Pacific/Majuro, Pacific/Pohnpei, Pacific/Wake and Pacific/Wallis.
(This indirectly affects zones that were already links to one of
these: Arctic/Longyearbyen, Atlantic/Jan_Mayen, Iceland,
Pacific/Ponape, Pacific/Truk, and Pacific/Yap.)  America/Nipigon,
America/Rainy_River, America/Thunder_Bay, Europe/Uzhgorod, and
Europe/Zaporozhye were also merged into nearby zones after discovering
that their claimed post-1970 differences from those zones seem to have
been errors.

While the IANA crew have been working on merging zones that have no
post-1970 differences for some time, this batch of changes affects
some zones that are significantly more populous than those merged
in the past, notably parts of Europe.  The loss of pre-1970 timezone
history for those zones may be troublesome for applications
expecting consistency of timestamptz display.  As an example, the
stored value '1944-06-01 12:00 UTC' would previously display as
'1944-06-01 13:00:00+01' if the Europe/Stockholm zone is selected,
but now it will read out as '1944-06-01 14:00:00+02'.

There exists a "packrat" option that will build the timezone data
files with this old data preserved, but the problem is that it also
resurrects a bunch of other, far less well-attested data; so much so
that actually more zones' contents change from 2022a with that option
than without it.  I have chosen not to do that here, for that reason
and because it appears that no major OS distributions are using the
"packrat" option, so that doing so would cause Postgres' behavior
to diverge significantly depending on whether it was built with
--with-system-tzdata.  However, for anyone for whom these changes pose
significant problems, there is a solution: build a set of timezone
files with the "packrat" option and use those with Postgres.
</pre>
</div>
</content>
</entry>
<entry>
<title>pg_stat_statements: fetch stmt location/length before it disappears.</title>
<updated>2022-11-01T16:48:01+00:00</updated>
<author>
<name>Tom Lane</name>
<email>tgl@sss.pgh.pa.us</email>
</author>
<published>2022-11-01T16:48:01+00:00</published>
<link rel='alternate' type='text/html' href='http://trove.baserock.org/cgit/delta/postgresql.git/commit/?id=ca4c6764b3ee5211c93cd94f4f46a4831dbcb684'/>
<id>ca4c6764b3ee5211c93cd94f4f46a4831dbcb684</id>
<content type='text'>
When executing a utility statement, we must fetch everything
we need out of the PlannedStmt data structure before calling
standard_ProcessUtility.  In certain cases (possibly only ROLLBACK
in extended query protocol), that data structure will get freed
during command execution.  The situation is probably often harmless
in production builds, but in debug builds we intentionally overwrite
the freed memory with garbage, leading to picking up garbage values
of statement location and length, typically causing an assertion
failure later in pg_stat_statements.  In non-debug builds, if
something did go wrong it would likely lead to storing garbage
for the query string.

Report and fix by zhaoqigui (with cosmetic adjustments by me).
It's an old problem, so back-patch to all supported versions.

Discussion: https://postgr.es/m/17663-a344fd0675f92128@postgresql.org
Discussion: https://postgr.es/m/1667307420050.56657@hundsun.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When executing a utility statement, we must fetch everything
we need out of the PlannedStmt data structure before calling
standard_ProcessUtility.  In certain cases (possibly only ROLLBACK
in extended query protocol), that data structure will get freed
during command execution.  The situation is probably often harmless
in production builds, but in debug builds we intentionally overwrite
the freed memory with garbage, leading to picking up garbage values
of statement location and length, typically causing an assertion
failure later in pg_stat_statements.  In non-debug builds, if
something did go wrong it would likely lead to storing garbage
for the query string.

Report and fix by zhaoqigui (with cosmetic adjustments by me).
It's an old problem, so back-patch to all supported versions.

Discussion: https://postgr.es/m/17663-a344fd0675f92128@postgresql.org
Discussion: https://postgr.es/m/1667307420050.56657@hundsun.com
</pre>
</div>
</content>
</entry>
</feed>
