Thomas Munro [Thu, 7 Jul 2022 23:21:46 +0000 (11:21 +1200)]
Remove HP/Intel Itanium support.
This CPU architecture has been discontinued. We already removed HP-UX
support, we never supported Windows/Itanium, and the open source
operating systems that a vintage hardware owner might hope to run have
all either ended Itanium support or never fully released support (NetBSD
may eventually). The extra code we carry for this rare ISA is now
untested. It seems like a good time to remove it.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/
1415825.
1656893299%40sss.pgh.pa.us
Thomas Munro [Thu, 7 Jul 2022 23:17:47 +0000 (11:17 +1200)]
Remove HP-UX port.
HP-UX hardware is no longer produced, build farm coverage recently
ended, and there are no known active maintainers targeting this OS.
Since there is a major rewrite of the build system in the pipeline for
PostgreSQL 16, and that requires development, testing and maintainance
for each OS and tool chain, it seems like a good time to drop support
for:
* HP-UX, the operating system.
* HP aCC, the HP-UX native compiler.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://postgr.es/m/
1415825.
1656893299%40sss.pgh.pa.us
Andrew Dunstan [Thu, 7 Jul 2022 21:40:02 +0000 (17:40 -0400)]
Only allow returning string types or bytea from json_serialize
These are documented to be the allowed types for the RETURNING clause,
but the restriction was not being enforced, which caused a segfault if
another type was specified. Add some testing for this.
Per report from a.kozhemyakin
Backpatch to release 15.
Tom Lane [Thu, 7 Jul 2022 15:23:40 +0000 (11:23 -0400)]
Remove stray references to lefttree/righttree in the executor.
The general convention in the executor is to refer to child plans
and planstates via the outerPlan[State] and innerPlan[State]
macros, but a few places didn't do it like that. For consistency
and readability, convert all the stragglers to use the macros.
(See also commit
40f42d2a3, which did some similar cleanup a few
years ago, but missed these cases.)
Richard Guo
Discussion: https://postgr.es/m/CAMbWs4-vYhh1xsa_veah4PUed2Xq=Ed_YH3=Mqt5A3Y=EgfCEg@mail.gmail.com
Fujii Masao [Thu, 7 Jul 2022 13:37:54 +0000 (22:37 +0900)]
Add checkpoint and REDO LSN to log_checkpoints message.
It is useful for debugging purposes to report the checkpoint LSN and
REDO LSN in log_checkpoints message. It can give more context while
analyzing checkpoint-related issues. pg_controldata reports the last
checkpoint LSN and REDO LSN, but having this information alongside
the log message helps analyze issues that happened previously,
connect the dots and identify the root cause.
Author: Bharath Rupireddy, Kyotaro Horiguchi
Reviewed-by: Michael Paquier, Julien Rouhaud, Nathan Bossart, Fujii Masao, Greg Stark
Discussion: https://postgr.es/m/CALj2ACWt6kqriAHrO+AJj+OmP=suwbktHT5JoYAn-nqZe2gd2g@mail.gmail.com
Dean Rasheed [Thu, 7 Jul 2022 12:08:08 +0000 (13:08 +0100)]
Fix alias matching in transformLockingClause().
When locking a specific named relation for a FOR [KEY] UPDATE/SHARE
clause, transformLockingClause() finds the relation to lock by
scanning the rangetable for an RTE with a matching eref->aliasname.
However, it failed to account for the visibility rules of a join RTE.
If a join RTE doesn't have a user-supplied alias, it will have a
generated eref->aliasname of "unnamed_join" that is not visible as a
relation name in the parse namespace. Such an RTE needs to be skipped,
otherwise it might be found in preference to a regular base relation
with a user-supplied alias of "unnamed_join", preventing it from being
locked.
In addition, if a join RTE doesn't have a user-supplied alias, but
does have a join_using_alias, then the RTE needs to be matched using
that alias rather than the generated eref->aliasname, otherwise a
misleading "relation not found" error will be reported rather than a
"join cannot be locked" error.
Backpatch all the way, except for the second part which only goes back
to 14, where JOIN USING aliases were added.
Dean Rasheed, reviewed by Tom Lane.
Discussion: https://postgr.es/m/CAEZATCUY_KOBnqxbTSPf=7fz9HWPnZ5Xgb9SwYzZ8rFXe7nb=w@mail.gmail.com
Etsuro Fujita [Thu, 7 Jul 2022 07:25:00 +0000 (16:25 +0900)]
postgres_fdw: Fix grammar.
Oversight in commit
4036bcbbb; back-patch to v15 where that appeared.
Peter Eisentraut [Thu, 7 Jul 2022 06:30:52 +0000 (08:30 +0200)]
Convert macros to static inline functions (block.h)
Remove BlockIdIsValid(), which wasn't used and is unnecessary.
Remove BlockIdCopy(), which wasn't used and can be done by struct
assignment.
(BlockIdEquals() also isn't used, but seems reasonable to keep
around.)
Reviewed-by: Amul Sul <sulamul@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/
5b558da8-99fb-0a99-83dd-
f72f05388517%40enterprisedb.com
Michael Paquier [Thu, 7 Jul 2022 04:25:45 +0000 (13:25 +0900)]
Make Windows 10 the minimal runtime requirement for WIN32
This commit bumps the runtime value of _WIN32_WINNT to be 0x0A00 for any
builds on Windows. Hence, this makes Windows 10 the minimal requirement
when running PostgreSQL under WIN32, be it for builds of Cygwin, MinGW
or Visual Studio.
The previous minimal runtime version was either Windows Vista when
building with at least Visual Studio 2015 or Windows XP for the rest.
Windows 10 is the most modern version supported by Microsoft, and per
discussion, as we don't have buildfarm members that run older versions
anymore, this is the minimal supported version that suits better for our
needs. This will actually make easier the development of some patches,
two being async I/O and large page handling by avoiding a lot of
compatibility gotchas, on platforms that have most likely few users
anyway.
It is possible to remove MIN_WINNT in win32.h and the macros
IsWindowsXXXOrGreater() that were used in the code at runtime to check
which version of Windows was getting used. The change in pg_locale.c
comes from Juan. Note that all my tests passed, and that the CI is
green. The buildfarm will quickly tell if this needs more adjustments.
Author: Michael Paquier, Juan José Santamaría Flecha
Reviewed-by: Thomas Munro
Discussion: https://postgr.es/m/Yo7tHKD8VCkeNi71@paquier.xyz
Amit Kapila [Thu, 7 Jul 2022 03:30:27 +0000 (09:00 +0530)]
Re-order disable_on_error in tab-complete.
By convention, the tab-complete subscription parameters are listed in the
COMPLETE_WITH lists in alphabetical order, but when the "disable_on_error"
parameter was introduced this was not done.
This patch just tidies that up.
Reported-by: Peter Smith
Author: Peter Smith
Reviewed-by: Euler Taveira, Takamichi Osumi
Backpatch-through: 15, where it was introduced
Discussion: https://postgr.es/m/CAHut+PucvKZgg_eJzUW--iL6DXHg1Jwj6F09tQziE3kUF67uLg@mail.gmail.com
Michael Paquier [Thu, 7 Jul 2022 01:13:01 +0000 (10:13 +0900)]
Clean up some includes and comments in TAP test scripts
A few tests included File::Path::rmtree without using it, and a comment
related to the segment size for replication slot limits was wrong.
Author: Pavel Borisov, Bharath Rupireddy
Reviewed-by: Maxim Orlov
Discussion: https://postgr.es/m/CALj2ACU4-aNLX=DrUM8F7QDwynJKzYRiqOj_33NhnGbhDs5-kQ@mail.gmail.com
Andres Freund [Wed, 6 Jul 2022 22:50:38 +0000 (15:50 -0700)]
pgstat: slru: remove outdated comment
That comment might have been true at some point during development, but
definitely isn't anymore.
Reported-By: Melanie Plageman <melanieplageman@gmail.com>
Backpatch: 15-
Tom Lane [Wed, 6 Jul 2022 21:26:27 +0000 (17:26 -0400)]
Fix wrong field order in _readMergeWhenClause().
We hadn't noticed this because it's dead code: there is no
situation where we read raw parse trees from text format.
So maybe the right fix is to remove the function altogether,
but I'll forbear for now; it's not the only dead code in
readfuncs.c, I think.
Noted while comparing existing code to the results of
Peter's auto-generation script.
David Rowley [Wed, 6 Jul 2022 20:14:00 +0000 (08:14 +1200)]
Overload index_form_tuple to allow the memory context to be supplied
40af10b57 changed things so we make use of a generation memory context for
storing tuples to be sorted by tuplesort.c. That change does not play
nicely with the changes made in
9f03ca915 (back in 2014). That commit
changed things so that index_form_tuple() is called while switched into
the tuplestore's tuplecontext. In order to fetch the tuple from the index,
index_form_tuple() must do various memory allocations which are unrelated
to the storage of the final returned tuple. Although all of these
allocations are pfree'd, the fact that we now use a generation context
means that the memory for these pfree'd allocations won't be used again by
any other allocation due to generation.c's lack of freelists. This could
result in sorts used for building indexes exceeding maintenance_work_mem
by a very large amount.
Here we fix it so we no longer allocate anything apart from the tuple
itself into the generation context by adding a new version of
index_form_tuple named index_form_tuple_context, which can be called to
specify the MemoryContext to allocate the tuple into.
Discussion: https://postgr.es/m/CAApHDvrHQkiFRHiGiAS-LMOvJN-eK-s762=tVzBz8ZqUea-a_A@mail.gmail.com
Backpatch-through: 15, where
40af10b57 was added.
Robert Haas [Wed, 6 Jul 2022 17:05:51 +0000 (13:05 -0400)]
pg_stat_statements: Fix test that assumes wal_records = rows.
It's not very robust to assume that each inserted row will produce
exactly one WAL record and that no other WAL records will be generated
in the process, because for example a particular transaction could
always be the one that has to extend clog.
Because these tests are not run by 'make installcheck' but only by
'make check', it may be that in our current testing infrastructure
this can't be hit, but it doesn't seem like a good idea to rely on
that, since unrelated changes to the regression tests or the way
write-ahead logging is done could easily cause it to start happening,
and debugging such failures is a pain.
Adjust the regression test to be less sensitive.
Anton Melnikov, reviewed by Julien Rouhaud
Discussion: http://postgr.es/m/
1ccd00d9-1723-6b68-ae56-
655aab00d406@inbox.ru
Andres Freund [Wed, 6 Jul 2022 15:53:25 +0000 (08:53 -0700)]
pgstat: drop subscription stats without slot as well, fix comment
There's no reason anymore to only drop subscription stats if associated with a
slot, now that stats drops are transactional. And since there's now no other
cleanup of stats, this would lead to stats for slot-less subscriptions to get
leaked (however most slot-less subs won't have stats).
Additionally, the comment referring to autovacuum cleaning up stats was
clearly outdated.
Author: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/CAD21AoAwiby3HeJE7vJe16Gr75RFfJ640dyHqvsiUhyKJTXPtw@mail.gmail.com
Backpatch: 15-
Robert Haas [Wed, 6 Jul 2022 15:39:09 +0000 (11:39 -0400)]
Change internal RelFileNode references to RelFileNumber or RelFileLocator.
We have been using the term RelFileNode to refer to either (1) the
integer that is used to name the sequence of files for a certain relation
within the directory set aside for that tablespace/database combination;
or (2) that value plus the OIDs of the tablespace and database; or
occasionally (3) the whole series of files created for a relation
based on those values. Using the same name for more than one thing is
confusing.
Replace RelFileNode with RelFileNumber when we're talking about just the
single number, i.e. (1) from above, and with RelFileLocator when we're
talking about all the things that are needed to locate a relation's files
on disk, i.e. (2) from above. In the places where we refer to (3) as
a relfilenode, instead refer to "relation storage".
Since there is a ton of SQL code in the world that knows about
pg_class.relfilenode, don't change the name of that column, or of other
SQL-facing things that derive their name from it.
On the other hand, do adjust closely-related internal terminology. For
example, the structure member names dbNode and spcNode appear to be
derived from the fact that the structure itself was called RelFileNode,
so change those to dbOid and spcOid. Likewise, various variables with
names like rnode and relnode get renamed appropriately, according to
how they're being used in context.
Hopefully, this is clearer than before. It is also preparation for
future patches that intend to widen the relfilenumber fields from its
current width of 32 bits. Variables that store a relfilenumber are now
declared as type RelFileNumber rather than type Oid; right now, these
are the same, but that can now more easily be changed.
Dilip Kumar, per an idea from me. Reviewed also by Andres Freund.
I fixed some whitespace issues, changed a couple of words in a
comment, and made one other minor correction.
Discussion: http://postgr.es/m/CA+TgmoamOtXbVAQf9hWFzonUo6bhhjS6toZQd7HZ-pmojtAmag@mail.gmail.com
Discussion: http://postgr.es/m/CA+Tgmobp7+7kmi4gkq7Y+4AM9fTvL+O1oQ4-5gFTT+6Ng-dQ=g@mail.gmail.com
Discussion: http://postgr.es/m/CAFiTN-vTe79M8uDH1yprOU64MNFE+R3ODRuA+JWf27JbhY4hJw@mail.gmail.com
Andres Freund [Wed, 6 Jul 2022 15:11:39 +0000 (08:11 -0700)]
Remove LLVM_CONFIG from Makefile.global.in
LLVM_CONFIG is only used inside configure.
Reviewed-By: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://postgr.es/m/
0e81e45c-c9a5-e95b-2782-
ab2dfec8bf57@enterprisedb.com
Peter Eisentraut [Wed, 6 Jul 2022 08:32:40 +0000 (10:32 +0200)]
Tiny capitalization adjustment in pkg-config files
This makes the output match that produced by meson (and also matches
other packages and pkg-config's own documentation better).
David Rowley [Wed, 6 Jul 2022 07:40:32 +0000 (19:40 +1200)]
Remove size increase in ExprEvalStep caused by hashed saops
50e17ad28 increased the size of ExprEvalStep from 64 bytes up to 88 bytes.
Lots of effort was spent during the development of the current expression
evaluation code to make an instance of this struct as small as possible.
Making this struct larger than needed reduces CPU cache efficiency during
expression evaluation which causes noticeable slowdowns during query
execution.
In order to reduce the size of the struct, here we remove the fn_addr
field. The values from this field can be obtained via fcinfo, just with
some extra pointer dereferencing. The extra indirection does not seem to
cause any noticeable slowdowns.
Various other fields have been moved into the ScalarArrayOpExprHashTable
struct. These fields are only used when the ScalarArrayOpExprHashTable
pointer has already been dereferenced, so no additional pointer
dereferences occur for these. Here we also make hash_fcinfo_data the last
field in ScalarArrayOpExprHashTable so that we can avoid a further pointer
dereference to get the FunctionCallInfoBaseData. This also saves a call to
palloc().
50e17ad28 was added in 14, but it's too late to adjust the size of the
ExprEvalStep in that version, so here we just backpatch to 15, which is
currently in beta.
Author: Andres Freund, David Rowley
Discussion: https://postgr.es/m/
20220616233130.rparivafipt6doj3@alap3.anarazel.de
Backpatch-through: 15
Peter Eisentraut [Wed, 6 Jul 2022 06:28:02 +0000 (08:28 +0200)]
Refactor sending of DataRow messages in replication protocol
Some routines open-coded the construction of DataRow messages. Use
TupOutputState struct and associated functions instead, which was
already done in some places.
SendTimeLineHistory() is a bit more complicated and isn't converted by
this.
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/
7e4fdbdc-699c-4cd0-115d-
fb78a957fc22@enterprisedb.com
Peter Eisentraut [Wed, 6 Jul 2022 05:30:16 +0000 (07:30 +0200)]
Unify DLSUFFIX on Darwin
macOS has traditionally used extension .dylib for shared libraries
(used at build time) and .so for dynamically loaded modules (used by
dlopen()). This complicates the build system a bit. Also, Meson uses
.dylib for both, so it would be worth unifying this in order to be
able to get equal build output.
There doesn't appear to be any reason to use any particular extension
for dlopened modules, since dlopen() will accept anything and
PostgreSQL is well-factored to be able to deal with any extension.
Other software packages that I have handy appear to be about 50/50
split on which extension they use for their plugins. So it seems
possible to change this safely.
Discussion: https://www.postgresql.org/message-id/flat/
bcc45f78-e3c3-8fb3-7c42-
5371b48b5266%40enterprisedb.com
Peter Eisentraut [Wed, 6 Jul 2022 05:16:46 +0000 (07:16 +0200)]
Reorder ecpg_config.h.in alphabetically
This makes it easier to maintain the order if we automate the
generation of this file.
Michael Paquier [Wed, 6 Jul 2022 00:55:30 +0000 (09:55 +0900)]
autho_explain: Add GUC to log query parameters
auto_explain.log_parameter_max_length is a new GUC part of the
extension, similar to the corresponding core setting, that controls the
inclusion of query parameters in the logged explain output.
More tests are added to check the behavior of this new parameter: when
parameters logged in full (the default of -1), when disabled (value of
0) and when partially truncated (value different than the two others).
Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87ee09mohb.fsf@wibble.ilmari.org
Tom Lane [Tue, 5 Jul 2022 22:23:19 +0000 (18:23 -0400)]
Tighten pg_upgrade's new check for non-upgradable anyarray usages.
We only need to reject cases when the aggregate or operator is
itself declared with a polymorphic type. Per buildfarm.
Discussion: https://postgr.es/m/
3383880.QJadu78ljV@vejsadalnx
Andres Freund [Fri, 17 Jun 2022 19:48:34 +0000 (12:48 -0700)]
pgstat: reduce timer overhead by leaving timer running.
Previously the timer was enabled whenever there were any pending stats after
executing a statement, just to then be disabled again when not idle
anymore. That lead to an increase in GetCurrentTimestamp() calls from within
timeout.c compared to 14.
To avoid that increase, leave the timer enabled until stats are reported,
rather than until idle. The timer is only disabled once the pending stats have
been reported.
For me this fixes the increase in GetCurrentTimestamp() calls, there now are
fewer calls in 15 than in 14, in the previously slowed down workload.
While at it, also update assertion in pgstat_report_stat() to be more precise.
Author: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/
20220616233130.rparivafipt6doj3@alap3.anarazel.de
Backpatch: 15-
Andres Freund [Fri, 17 Jun 2022 01:33:42 +0000 (18:33 -0700)]
expression eval: Fix EEOP_JSON_CONSTRUCTOR and EEOP_JSONEXPR size.
The new expression step types increased the size of ExprEvalStep by ~4 for all
types of expression steps, slowing down expression evaluation noticeably. Move
them out of line.
There's other issues with these expression steps, but addressing them is
largely independent of this aspect.
Author: Andres Freund <andres@anarazel.de>
Reviewed-By: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/
20220616233130.rparivafipt6doj3@alap3.anarazel.de
Backpatch: 15-
Andres Freund [Tue, 5 Jul 2022 18:01:10 +0000 (11:01 -0700)]
Revert 019_replslot_limit.pl related debugging aids.
This reverts most of
91c0570a791,
f28bf667f60,
fe0972ee5e6,
afdeff10526. The
only thing left is the retry loop in 019_replslot_limit.pl that avoids
spurious failures by retrying a couple times.
We haven't seen any hard evidence that this is caused by anything but slow
process shutdown. We did not find any cases where walsenders did not vanish
after waiting for longer. Therefore there's no reason for this debugging code
to remain.
Discussion: https://postgr.es/m/
20220530190155.47wr3x2prdwyciah@alap3.anarazel.de
Backpatch: 15-
Robert Haas [Tue, 5 Jul 2022 17:31:42 +0000 (13:31 -0400)]
Rename pg_checkpointer predefined role to pg_checkpoint.
This is more consistent with how other predefined roles that confer
specific privileges are named.
Nathan Bosart
Discussion: http://postgr.es/m/CA+TgmoatH7+yYe+A8uJFNogg3VUDtFE6c-77yHAY8TRWR7oqyw@mail.gmail.com
Tom Lane [Tue, 5 Jul 2022 17:06:31 +0000 (13:06 -0400)]
Fix pg_upgrade to detect non-upgradable anyarray usages.
When we changed some built-in functions to use anycompatiblearray
instead of anyarray, we created a dump/restore hazard for user-defined
operators and aggregates relying on those functions: the user objects
have to be modified to change their signatures similarly. This causes
pg_upgrade to fail partway through if the source installation contains
such objects. We generally try to have pg_upgrade detect such hazards
and fail before it does anything exciting, so add logic to detect
this case too.
Back-patch to v14 where the change was made.
Justin Pryzby, reviewed by Andrey Borodin
Discussion: https://postgr.es/m/
3383880.QJadu78ljV@vejsadalnx
Tom Lane [Tue, 5 Jul 2022 15:12:33 +0000 (11:12 -0400)]
Fix errors in copyfuncs/equalfuncs support for JSON node types.
Noted while comparing existing code to the output of the proposed
patch to automate creation of these functions. Some of the changes
are just cosmetic, but others represent real bugs. I've not
attempted to analyze the user-visible impact.
Back-patch to v15 where this code came in.
Discussion: https://postgr.es/m/
1794155.
1656984188@sss.pgh.pa.us
Alvaro Herrera [Tue, 5 Jul 2022 12:21:20 +0000 (14:21 +0200)]
libpq: Improve idle state handling in pipeline mode
We were going into IDLE state too soon when executing queries via
PQsendQuery in pipeline mode, causing several scenarios to misbehave in
different ways -- most notably, as reported by Daniele Varrazzo, that a
warning message is produced by libpq:
message type 0x33 arrived from server while idle
But it is also possible, if queries are sent and results consumed not in
lockstep, for the expected mediating NULL result values from PQgetResult
to be lost (a problem which has not been reported, but which is more
serious).
Fix this by introducing two new concepts: one is a command queue element
PGQUERY_CLOSE to tell libpq to wait for the CloseComplete server
response to the Close message that is sent by PQsendQuery. Because the
application is not expecting any PGresult from this, the mechanism to
consume it is a bit hackish.
The other concept, authored by Horiguchi-san, is a PGASYNC_PIPELINE_IDLE
state for libpq's state machine to differentiate "really idle" from
merely "the idle state that occurs in between reading results from the
server for elements in the pipeline". This makes libpq not go fully
IDLE when the libpq command queue contains entries; in normal cases, we
only go IDLE once at the end of the pipeline, when the server response
to the final SYNC message is received. (However, there are corner cases
it doesn't fix, such as terminating the query sequence by
PQsendFlushRequest instead of PQpipelineSync; this sort of scenario is
what requires PGQUERY_CLOSE bit above.)
This last bit helps make the libpq state machine clearer; in particular
we can get rid of an ugly hack in pqParseInput3 to avoid considering
IDLE as such when the command queue contains entries.
A new test mode is added to libpq_pipeline.c to tickle some related
problematic cases.
Reported-by: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Co-authored-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/CA+mi_8bvD0_CW3sumgwPvWdNzXY32itoG_16tDYRu_1S2gV2iw@mail.gmail.com
Alvaro Herrera [Tue, 5 Jul 2022 11:38:26 +0000 (13:38 +0200)]
BRIN: improve documentation on summarization
The existing wording wasn't clear enough and some details weren't
anywhere, such as the fact that autosummarization is off by default.
Improve.
Authors: Roberto Mello, Jaime Casanova, Justin Pryzby, Álvaro Herrera
Discussion: https://postgr.es/m/CAKz==bK_NoJytRyQfX8K-erCW3Ff7--oGYpiB8+ePVS7dRVW_A@mail.gmail.com
Discussion: https://postgr.es/m/
20220224193520.GY9008@telsasoft.com
Peter Eisentraut [Tue, 5 Jul 2022 08:26:36 +0000 (10:26 +0200)]
Fix pg_prepared_statements.result_types for DML statements
Amendment to
84ad713cf85aeffee5dd39f62d49a1b9e34632da: Not all
prepared statements have a result descriptor. As currently coded,
this would crash when reading pg_prepared_statements. Make those
cases return null for result_types instead. Also add a test case for
it.
Michael Paquier [Tue, 5 Jul 2022 07:17:51 +0000 (16:17 +0900)]
Simplify a bit the special rules generating unaccent.rules
As noted by Thomas Munro, CLDR 36 has added SOUND RECORDING COPYRIGHT
(U+2117), and we use CLDR 41, so this can be removed from the set of
special cases.
The set of regression tests is expanded for degree signs, which are two
of the special cases, and a fancy case with U+210C in Latin-ASCII.xml
that we have discovered about when diving into what could be done for
Cyrillic characters (this last part is material for a future patch, not
tackled yet).
While on it, some of the assertions of generate_unaccent_rules.py are
expanded to report the codepoint on which a failure is found, something
useful for debugging.
Extracted from a larger patch by the same author.
Author: Przemysław Sztoch
Discussion: https://postgr.es/m/
8478da0d-3b61-d24f-80b4-
ce2f5e971c60@sztoch.pl
Peter Eisentraut [Tue, 5 Jul 2022 05:21:40 +0000 (07:21 +0200)]
Add result_types column to pg_prepared_statements view
Containing the types of the columns returned by the prepared
statement.
Prompted by question from IRC user mlvzk.
Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://www.postgresql.org/message-id/flat/871qwpo7te.fsf@wibble.ilmari.org
Michael Paquier [Tue, 5 Jul 2022 03:54:25 +0000 (12:54 +0900)]
Remove durable_rename_excl()
A previous commit replaced all the calls to this function with
durable_rename() as of
dac1ff3, making it used nowhere in the tree.
Using it in extension code is also risky based on the issues described
in this previous commit, so let's remove it. This makes possible the
removal of HAVE_WORKING_LINK.
Author: Nathan Bossart
Reviewed-by: Robert Haas, Kyotaro Horiguchi, Michael Paquier
Discussion: https://postgr.es/m/
20220407182954.GA1231544@nathanxps13
Michael Paquier [Tue, 5 Jul 2022 01:16:12 +0000 (10:16 +0900)]
Replace durable_rename_excl() by durable_rename(), take two
durable_rename_excl() attempts to avoid overwriting any existing files
by using link() and unlink(), and it falls back to rename() on some
platforms (aka WIN32), which offers no such overwrite protection. Most
callers use durable_rename_excl() just in case there is an existing
file, but in practice there shouldn't be one (see below for more
details).
Furthermore, failures during durable_rename_excl() can result in
multiple hard links to the same file. As per Nathan's tests, it is
possible to end up with two links to the same file in pg_wal after a
crash just before unlink() during WAL recycling. Specifically, the test
produced links to the same file for the current WAL file and the next
one because the half-recycled WAL file was re-recycled upon restarting,
leading to WAL corruption.
This change replaces all the calls of durable_rename_excl() to
durable_rename(). This removes the protection against accidentally
overwriting an existing file, but some platforms are already living
without it and ordinarily there shouldn't be one. The function itself
is left around in case any extensions are using it. It will be removed
on HEAD via a follow-up commit.
Here is a summary of the existing callers of durable_rename_excl() (see
second discussion link at the bottom), replaced by this commit. First,
basic_archive used it to avoid overwriting an archive concurrently
created by another server, but as mentioned above, it will still
overwrite files on some platforms. Second, xlog.c uses it to recycle
past WAL segments, where an overwrite should not happen (origin of the
change at
f0e37a8) because there are protections about the WAL segment
to select when recycling an entry. The third and last area is related
to the write of timeline history files. writeTimeLineHistory() will
write a new timeline history file at the end of recovery on promotion,
so there should be no such files for the same timeline.
What remains is writeTimeLineHistoryFile(), that can be used in parallel
by a WAL receiver and the startup process, and some digging of the
buildfarm shows that EEXIST from a WAL receiver can happen with an error
of "could not link file \"pg_wal/xlogtemp.NN\" to \"pg_wal/MM.history\",
which would cause an automatic restart of the WAL receiver as it is
promoted to FATAL, hence this should improve the stability of the WAL
receiver as rename() would overwrite an existing TLI history file
already fetched by the startup process at recovery.
This is a bug fix, but knowing the unlikeliness of the problem involving
one or more crashes at an exceptionally bad moment, no backpatch is
done. Also, I want to be careful with such changes (
aaa3aed did the
opposite of this change by removing HAVE_WORKING_LINK so as Windows
would do a link() rather than a rename() but this was not
concurrent-safe). A backpatch could be revisited in the future. This
is the second time this change is attempted,
ccfbd92 being the first
one, but this time no assertions are added for the case of a TLI history
file written concurrently by the WAL receiver or the startup process
because we can expect one to exist (some of the TAP tests are able to
trigger with a proper timing).
Author: Nathan Bossart
Reviewed-by: Robert Haas, Kyotaro Horiguchi, Michael Paquier
Discussion: https://postgr.es/m/
20220407182954.GA1231544@nathanxps13
Discussion: https://postgr.es/m/Ym6GZbqQdlalSKSG@paquier.xyz
Peter Eisentraut [Mon, 4 Jul 2022 05:25:26 +0000 (07:25 +0200)]
Refactor sending of RowDescription messages in replication protocol
Some routines open-coded the construction of RowDescription messages.
Instead, we have support for doing this using tuple descriptors and
DestRemoteSimple, so use that instead.
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/
7e4fdbdc-699c-4cd0-115d-
fb78a957fc22@enterprisedb.com
Alvaro Herrera [Mon, 4 Jul 2022 12:52:12 +0000 (14:52 +0200)]
Implement List support for TransactionId
Use it for RelationSyncEntry->streamed_txns, which is currently using an
integer list.
The API support is not complete, not because it is hard to write but
because it's unclear that it's worth the code space, there being so
little use of XID lists.
Discussion: https://postgr.es/m/
202205130830.g5ntonhztspb@alvherre.pgsql
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Michael Paquier [Mon, 4 Jul 2022 06:48:52 +0000 (15:48 +0900)]
Prevent write operations on large objects in read-only transactions
Attempting such an operation would already fail, but in various and
confusing ways. For example, while in recovery, some elog() messages
would be reported, but these should never be user-facing. This commit
restricts any write operations done on large objects in a read-only
context, so as the errors generated are more user-friendly. This is per
the discussion done with Tom Lane and Robert Haas.
Some regression tests are added to check the case of all the SQL
functions working on large objects (including an update of the test's
alternate output).
Author: Yugo Nagata
Discussion: https://postgr.es/m/
20220527153028.
61a4608f66abcd026fd3806f@sraoss.co.jp
Peter Eisentraut [Mon, 4 Jul 2022 06:06:05 +0000 (08:06 +0200)]
Fix for change timeline field of IDENTIFY_SYSTEM to int8
Amendment to
ec40f3422412cfdc140b5d3f67db7fd2dac0f1e2: We also need to
change the way the datum is supplied to int8. Otherwise, the value is
still cut off as an int4, and it will crash on 32-bit platforms.
Peter Eisentraut [Mon, 4 Jul 2022 05:25:26 +0000 (07:25 +0200)]
Change timeline field of IDENTIFY_SYSTEM to int8
It was int4, but in the other replication commands, timelines are
returned as int8.
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/
7e4fdbdc-699c-4cd0-115d-
fb78a957fc22@enterprisedb.com
Peter Eisentraut [Mon, 4 Jul 2022 05:25:26 +0000 (07:25 +0200)]
Fix attlen in RowDescription of BASE_BACKUP response
Should be 8 for int8, not -1.
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/
7e4fdbdc-699c-4cd0-115d-
fb78a957fc22@enterprisedb.com
Tom Lane [Mon, 4 Jul 2022 01:38:32 +0000 (21:38 -0400)]
Use a short socket directory path in pg_upgrade testing.
Several buildfarm members are failing the pg_upgrade test in
REL_15_STABLE, though the identical test is fine in HEAD.
On thorntail it's possible to see that the problem is an
overlength socket path name, and I bet the same is true
on the others.
The normally-started postmasters used in the test are already
set up with short socket directory paths, but we neglected to
tell pg_upgrade itself to do likewise when starting child
postmasters, and indeed it seems to be explicitly selecting
the test directory instead.
Back-patch to v15 where the current test script was introduced.
(The previous script might have the same issue, because I don't
see any use of -s/--socketdir in it either; but we've had no
complaints, so leave it alone for now.)
Discussion: https://postgr.es/m/
1410025.
1656890531@sss.pgh.pa.us
Andrew Dunstan [Sun, 3 Jul 2022 21:08:25 +0000 (17:08 -0400)]
Remove %error-verbose directive from jsonpath parser
None of the other bison parsers contains this directive, and it gives
rise to some unfortunate and impenetrable messages, so just remove it.
Backpatch to release 12, where it was introduced.
Per gripe from Erik Rijkers
Discussion: https://postgr.es/m/
ba069ce2-a98f-dc70-dc17-
2ccf2a9bf7c7@xs4all.nl
Tom Lane [Sun, 3 Jul 2022 20:49:12 +0000 (16:49 -0400)]
Allow makeaclitem() to accept multiple privilege names.
Interpret its privileges argument as a comma-separated list of
privilege names, as in has_table_privilege and other functions.
This is actually net less code, since the support routine to
parse that already exists, and we can drop convert_priv_string()
which had no other use-case.
Robins Tharakan
Discussion: https://postgr.es/m/
e5a05dc54ba64408b3dd260171c1abaf@EX13D05UWC001.ant.amazon.com
Noah Misch [Sun, 3 Jul 2022 20:07:17 +0000 (13:07 -0700)]
Add Windows file version information to libpq/test programs.
Back-patch to v15, the first version to install these programs.
Discussion: https://postgr.es/m/
20220501080706.GA1542365@rfd.leadboat.com
Tom Lane [Sun, 3 Jul 2022 19:27:27 +0000 (15:27 -0400)]
Simplify tab completion of extension versions, redux.
After commit
662dbe2c8, psql tab completion didn't conveniently
support the case of "ALTER EXTENSION foo UPDATE". It'd always
add "TO", which is fine if you want to specify a target version
but not if you don't ... and surely the latter is the much more
common case.
To fix, remove "TO" from the initially offered completion; you now
need to press TAB one additional time to get that. We won't try to
duplicate the old behavior of attempting initial completion on the
target version along with TO. It's too squirrelly to get the quoting
right, and this is such an infrequent usage that it doesn't seem worth
expending a lot of effort and special code on.
Noted by Noah Misch. Back-patch to v15.
Discussion: https://postgr.es/m/
20220703083217.GB2476530@rfd.leadboat.com
Peter Eisentraut [Sun, 3 Jul 2022 18:11:05 +0000 (20:11 +0200)]
Remove redundant null pointer checks before PQclear and PQconninfoFree
These functions already had the free()-like behavior of handling null
pointers as a no-op. But it wasn't documented, so add it explicitly
to the documentation, too.
Discussion: https://www.postgresql.org/message-id/flat/
dac5d2d0-98f5-94d9-8e69-
46da2413593d%40enterprisedb.com
Peter Eisentraut [Thu, 16 Jun 2022 19:50:56 +0000 (21:50 +0200)]
Remove redundant null pointer checks before free()
Per applicable standards, free() with a null pointer is a no-op.
Systems that don't observe that are ancient and no longer relevant.
Some PostgreSQL code already required this behavior, so this change
does not introduce any new requirements, just makes the code more
consistent.
Discussion: https://www.postgresql.org/message-id/flat/
dac5d2d0-98f5-94d9-8e69-
46da2413593d%40enterprisedb.com
Peter Eisentraut [Fri, 17 Jun 2022 09:51:38 +0000 (11:51 +0200)]
Remove redundant null pointer checks before pg_free()
These are especially useless because the whole point of pg_free() was
to do that very check before calling free().
pg_free() could be removed altogether, but I'm keeping it here to keep
the API consistent.
Discussion: https://www.postgresql.org/message-id/flat/
dac5d2d0-98f5-94d9-8e69-
46da2413593d%40enterprisedb.com
Noah Misch [Sun, 3 Jul 2022 04:03:19 +0000 (21:03 -0700)]
Fix previous commit's ecpg_clocale for ppc Darwin.
Per buildfarm member prairiedog, this platform rejects uninitialized
global variables in shared libraries. Back-patch to v10, like the
addition of the variable.
Reviewed by Tom Lane.
Discussion: https://postgr.es/m/
20220703030619.GB2378460@rfd.leadboat.com
Noah Misch [Sat, 2 Jul 2022 20:00:30 +0000 (13:00 -0700)]
ecpglib: call newlocale() once per process.
ecpglib has been calling it once per SQL query and once per EXEC SQL GET
DESCRIPTOR. Instead, if newlocale() has not succeeded before, call it
while establishing a connection. This mitigates three problems:
- If newlocale() failed in EXEC SQL GET DESCRIPTOR, the command silently
proceeded without the intended locale change.
- On AIX, each newlocale()+freelocale() cycle leaked memory.
- newlocale() CPU usage may have been nontrivial.
Fail the connection attempt if newlocale() fails. Rearrange
ecpg_do_prologue() to validate the connection before its uselocale().
The sort of program that may regress is one running in an environment
where newlocale() fails. If that program establishes connections
without running SQL statements, it will stop working in response to this
change. I'm betting against the importance of such an ECPG use case.
Most SQL execution (any using ECPGdo()) has long required newlocale()
success, so there's little a connection could do without newlocale().
Back-patch to v10 (all supported versions).
Reviewed by Tom Lane. Reported by Guillaume Lelarge.
Discussion: https://postgr.es/m/
20220101074055.GA54621@rfd.leadboat.com
Jeff Davis [Sat, 2 Jul 2022 18:20:45 +0000 (11:20 -0700)]
Emit debug message when executing extension script.
Allows extension authors to more easily debug problems related to the
sequence of update scripts that are executed.
Discussion: https://postgr.es/m/
5636a7534a4833884172fe4369d825b26170b3cc.camel%40j-davis.com
Reviewed-by: Peter Eisentraut, Nathan Bossart
Peter Eisentraut [Sat, 2 Jul 2022 10:33:07 +0000 (12:33 +0200)]
Reformat some node comments
Reformat some comments in node field definitions to avoid long lines.
This makes room for per-field annotations in a future patch to
generate node support functions automatically.
Discussion: https://www.postgresql.org/message-id/
c5906b07-220a-a3d4-8ff3-
8ee593009424@enterprisedb.com
Thomas Munro [Sat, 2 Jul 2022 04:06:47 +0000 (16:06 +1200)]
Default to dynamic_shared_memory_type=sysv on Solaris.
POSIX shm_open() can sleep for a long time and fail spuriously because
of contention on an internal lock file on Solaris (and presumably
illumos). Commit
389869af fixed the main problem with this, namely that
we could crash, but it's now clear that "posix" is not a good default.
Therefore, choose "sysv" at initdb time on Solaris and illumos. Other
choices are still available by editing the postgresql.conf file.
Back-patch only to 15, because contention is much less likely further
back, and it doesn't seem like a good idea to change this in released
branches. This should clear up the failures on build farm animal
margay.
Discussion: https://postgr.es/m/CA%2BhUKGKqKrCV5xKWfh9rnm%3Do%3DDwZLTLtnsj_XpUi9g5%3DV%2B9oyg%40mail.gmail.com
Michael Paquier [Sat, 2 Jul 2022 03:30:45 +0000 (12:30 +0900)]
Introduce pg_attribute_nonnull(...)
pg_attribute_nonnull(...) can be used to generate compiler warnings
when a function is called with the specified arguments set to NULL, as
per an idea from Andres Freund. An empty argument list indicates that
no pointer arguments can be NULL. pg_attribute_nonnull() only works for
compilers that support the nonnull function attribute. If nonnull is
not supported, pg_attribute_nonnull() has no effect.
As a beginning, this commit uses it for the DefineCustomXXXVariable()
functions to generate warnings when the "name" and "value" arguments are
set to NULL. This will likely be expanded to other places in the
future, where it makes sense.
Author: Nathan Bossart
Reviewed by: Michael Paquier, Tom Lane
Discussion: https://postgr.es/m/
20220525061739.ur7x535vtzyzkmqo@alap3.anarazel.de
Noah Misch [Sat, 2 Jul 2022 01:27:50 +0000 (18:27 -0700)]
Replace PGISOLATIONTIMEOUT with 2 * PG_TEST_TIMEOUT_DEFAULT.
Now that the more-generic variable exists, use it.
Discussion: https://postgr.es/m/
20220219024136.GA3670392@rfd.leadboat.com
Noah Misch [Sat, 2 Jul 2022 01:27:18 +0000 (18:27 -0700)]
Fix race condition in t/028_pitr_timelines.pl.
Per buildfarm members sungazer and mylodon. Back-patch to v15, which
introduced this test.
Discussion: https://postgr.es/m/
20220627070457.GA2176699@rfd.leadboat.com
Tom Lane [Fri, 1 Jul 2022 22:39:30 +0000 (18:39 -0400)]
Remove no-longer-used parameter for create_groupingsets_path().
numGroups is unused since commit
b5635948a; let's get rid of it.
XueJing Zhao, reviewed by Richard Guo
Discussion: https://postgr.es/m/DM6PR05MB64923CC8B63A2CAF3B2E5D47B7AD9@DM6PR05MB6492.namprd05.prod.outlook.com
Peter Eisentraut [Fri, 1 Jul 2022 14:41:46 +0000 (16:41 +0200)]
Add missing GETTEXT_FLAGS entry
Peter Eisentraut [Fri, 1 Jul 2022 08:51:45 +0000 (10:51 +0200)]
Add construct_array_builtin, deconstruct_array_builtin
There were many calls to construct_array() and deconstruct_array() for
built-in types, for example, when dealing with system catalog columns.
These all hardcoded the type attributes necessary to pass to these
functions.
To simplify this a bit, add construct_array_builtin(),
deconstruct_array_builtin() as wrappers that centralize this hardcoded
knowledge. This simplifies many call sites and reduces the amount of
hardcoded stuff that is spread around.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/
2914356f-9e5f-8c59-2995-
5997fc48bcba%40enterprisedb.com
Fujii Masao [Fri, 1 Jul 2022 05:19:52 +0000 (14:19 +0900)]
doc: Add index entry for MERGE SQL command.
Back-patch to v15, where MERGE command was supported.
Author: Fujii Masao
Reviewed-by: Alvaro Herrera
Discussion: https://postgr.es/m/
4e7a4b38-c34a-ce2c-c71e-
832d2b768b29@oss.nttdata.com
John Naylor [Fri, 1 Jul 2022 04:41:36 +0000 (11:41 +0700)]
Clarify that pg_dump takes ACCESS SHARE lock
Add link to the description of lock levels to avoid confusing "shared locks"
with SHARE locks.
Florin Irion
Reviewed-by: Álvaro Herrera, Tom Lane, and Nathan Bossart
Discussion: https://www.postgresql.org/message-id/flat/
d0f30cc2-3c76-1d43-f291-
7c4b2872d653@gmail.com
Thomas Munro [Fri, 1 Jul 2022 00:05:52 +0000 (12:05 +1200)]
Harden dsm_impl.c against unexpected EEXIST.
Previously, we trusted the OS not to report EEXIST unless we'd passed in
IPC_CREAT | IPC_EXCL or O_CREAT | O_EXCL, as appropriate. Solaris's
shm_open() can in fact do that, causing us to crash because we didn't
ereport and then we blithely assumed the mapping was successful.
Let's treat EEXIST just like any other error, unless we're actually
trying to create a new segment. This applies to shm_open(), where this
behavior has been seen, and also to the equivalent operations for our
sysv and mmap modes just on principle.
Based on the underlying reason for the error, namely contention on a
lock file managed by Solaris librt for each distinct name, this problem
is only likely to happen on 15 and later, because the new shared memory
stats system produces shm_open() calls for the same path from
potentially large numbers of backends concurrently during
authentication. Earlier releases only shared memory segments between a
small number of parallel workers under one Gather node. You could
probably hit it if you tried hard enough though, and we should have been
more defensive in the first place. Therefore, back-patch to all
supported releases.
Per build farm animal margay. This isn't the end of the story, though,
it just changes random crashes into random "File exists" errors; more
work needed for a green build farm.
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Discussion: https://postgr.es/m/CA%2BhUKGKqKrCV5xKWfh9rnm%3Do%3DDwZLTLtnsj_XpUi9g5%3DV%2B9oyg%40mail.gmail.com
Michael Paquier [Fri, 1 Jul 2022 00:37:17 +0000 (09:37 +0900)]
Fix code comments still referring to pg_start/stop_backup()
pg_start_backup() and pg_stop_backup() have been respectively renamed to
pg_backup_start() and pg_backup_stop() as of
39969e2, but a few comments
did not get the call.
Reviewed-by: Kyotaro Horiguchi, David Steele
Discussion: https://postgr.es/m/YrqGlj1+4DF3dbZ/@paquier.xyz
Michael Paquier [Fri, 1 Jul 2022 00:13:57 +0000 (09:13 +0900)]
Refactor the TAP test of auto_explain
Previously, the tests were structured so as all the queries whose plans
are checked run first, followed by pattern checks using the full set of
server logs. This can be problematic when extending the tests, as this
increases query plan overlaps, where two tests finish by having similar
plan outputs potentially invalidating the tests wanted.
The tests are refactored so as log content matches are checked in
isolation of each query run, by grabbing the position of the server logs
before running each query whose plan is generated in the logs. This
avoids issues when extending the tests, something that would become a
larger problem with a follow-up patch that adds a new GUC in
auto_explain to control the size of the each parameter logged.
Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87ee09mohb.fsf@wibble.ilmari.org
Peter Eisentraut [Thu, 30 Jun 2022 22:16:38 +0000 (00:16 +0200)]
Change some unnecessary MemSet calls
MemSet() with a value other than 0 just falls back to memset(), so the
indirection is unnecessary if the value is constant and not 0. Since
there is some interest in getting rid of MemSet(), this gets some easy
cases out of the way. (There are a few MemSet() calls that I didn't
change to maintain the consistency with their surrounding code.)
Discussion: https://www.postgresql.org/message-id/flat/CAEudQApCeq4JjW1BdnwU=m=-DvG5WyUik0Yfn3p6UNphiHjj+w@mail.gmail.com
Peter Eisentraut [Thu, 30 Jun 2022 18:10:13 +0000 (19:10 +0100)]
Avoid unnecessary MemSet call
The variable in question was changed from a struct to a pointer some
time ago (
77947c51c08). Using MemSet to zero it still works but is
obviously unidiomatic and confusing, so change it to a straight
assignment.
Author: Ranier Vilela <ranier.vf@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAEudQApCeq4JjW1BdnwU=m=-DvG5WyUik0Yfn3p6UNphiHjj+w@mail.gmail.com
Tom Lane [Thu, 30 Jun 2022 15:26:40 +0000 (11:26 -0400)]
Stamp HEAD as 16devel.
Let the hacking begin ...
Tom Lane [Thu, 30 Jun 2022 15:08:12 +0000 (11:08 -0400)]
Add
82d0ffae3 to git-blame-ignore-revs.
Tom Lane [Thu, 30 Jun 2022 15:03:03 +0000 (11:03 -0400)]
pgindent run prior to branching v15.
pgperltidy and reformat-dat-files too. Not many changes.
Bruce Momjian [Tue, 28 Jun 2022 20:35:32 +0000 (16:35 -0400)]
relnotes: update item about public schema permission change
Also mention the bootstrap superuser.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/
20220628063719.GA2208244@rfd.leadboat.com
Tom Lane [Mon, 27 Jun 2022 20:11:56 +0000 (16:11 -0400)]
Stamp 15beta2.
Magnus Hagander [Mon, 27 Jun 2022 17:43:27 +0000 (19:43 +0200)]
Remove outdated recommendation for manual VACUUM
We have had a working and tunable autovacuum
for at least a decade now, so remove the recommendation to
manually vacuum tables at least every night.
Autovacuum is now also triggered by INSERTs, so we can also
remove the recommendation to run VACUUM (ANALYZE) after lots
of INSERTs or DELETEs.
Instead, suggest using autovacuum by moving the respective
paragraph up to where the importance of VACUUM is emphasized.
Author: Laurenz Albe <laurenz.albe@cybertec.at>
Reviewed-By: Magnus Hagander, Peter Geoghegan
Discussion: https://postgr.es/m/
6f5e3da98fec14640f389d7b84c3b413833697f4.camel@cybertec.at
Peter Eisentraut [Mon, 27 Jun 2022 10:53:05 +0000 (12:53 +0200)]
PL/Python: Update guide to alternative expected files
plpython_unicode_3.out was already removed a long time ago, so it
being listed here was very out of date.
plpython_types_3.out was removed with the Python 2 removal.
Peter Eisentraut [Mon, 27 Jun 2022 07:06:44 +0000 (09:06 +0200)]
pg_upgrade: Fix version comparison for global ICU support
Reported-by: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://www.postgresql.org/message-id/
20220625151930.GH22452@telsasoft.com
Michael Paquier [Mon, 27 Jun 2022 06:33:39 +0000 (15:33 +0900)]
doc: Mention attribute "inherited" in pg_stats_ext[_exprs]
These have been added in
269b532, but the documentation did not reflect
that.
Author: Noriyoshi Shinoda
Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/DM4PR84MB17349C4E7D88A68264C18AF3EED69@DM4PR84MB1734.NAMPRD84.PROD.OUTLOOK.COM
Peter Eisentraut [Mon, 27 Jun 2022 06:19:02 +0000 (08:19 +0200)]
Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash:
46c120873f1e906cc8dab74d8d756417e1b367f6
Heikki Linnakangas [Mon, 27 Jun 2022 05:21:08 +0000 (08:21 +0300)]
Fix visibility check when XID is committed in CLOG but not in procarray.
TransactionIdIsInProgress had a fast path to return 'false' if the
single-item CLOG cache said that the transaction was known to be
committed. However, that was wrong, because a transaction is first
marked as committed in the CLOG but doesn't become visible to others
until it has removed its XID from the proc array. That could lead to an
error:
ERROR: t_xmin is uncommitted in tuple to be updated
or for an UPDATE to go ahead without blocking, before the previous
UPDATE on the same row was made visible.
The window is usually very short, but synchronous replication makes it
much wider, because the wait for synchronous replica happens in that
window.
Another thing that makes it hard to hit is that it's hard to get such
a commit-in-progress transaction into the single item CLOG cache.
Normally, if you call TransactionIdIsInProgress on such a transaction,
it determines that the XID is in progress without checking the CLOG
and without populating the cache. One way to prime the cache is to
explicitly call pg_xact_status() on the XID. Another way is to use a
lot of subtransactions, so that the subxid cache in the proc array is
overflown, making TransactionIdIsInProgress rely on pg_subtrans and
CLOG checks.
This has been broken ever since it was introduced in 2008, but the race
condition is very hard to hit, especially without synchronous
replication. There were a couple of reports of the error starting from
summer 2021, but no one was able to find the root cause then.
TransactionIdIsKnownCompleted() is now unused. In 'master', remove it,
but I left it in place in backbranches in case it's used by extensions.
Also change pg_xact_status() to check TransactionIdIsInProgress().
Previously, it only checked the CLOG, and returned "committed" before
the transaction was actually made visible to other queries. Note that
this also means that you cannot use pg_xact_status() to reproduce the
bug anymore, even if the code wasn't fixed.
Report and analysis by Konstantin Knizhnik. Patch by Simon Riggs, with
the pg_xact_status() change added by me.
Author: Simon Riggs
Reviewed-by: Andres Freund
Discussion: https://www.postgresql.org/message-id/flat/
4da7913d-398c-e2ad-d777-
f752cf7f0bbb%40garret.ru
Thomas Munro [Sun, 26 Jun 2022 22:30:15 +0000 (10:30 +1200)]
Fix relptr's encoding of the base address.
Previously, we encoded both NULL and the first byte at the base address
as 0. That confusion led to the assertion in commit
e07d4ddc, which
failed when min_dynamic_shared_memory was used. Give them distinct
encodings, by switching to 1-based offsets for non-NULL pointers. Also
improve macro hygiene in passing (missing/misplaced parentheses), and
remove open-coded access to the raw offset value from freepage.c/h.
Although
e07d4ddc was back-patched to 10, the only code that actually
makes use of relptr at the base address arrived in
84b1c63a, so no need
to back-patch further than 14 for now.
Reported-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Discussion: https://postgr.es/m/
20220519193839.GT19626%40telsasoft.com
Tom Lane [Sun, 26 Jun 2022 12:58:05 +0000 (08:58 -0400)]
Harden range_table_mutator() against null RangeTblEntry.subquery.
Commit
64919aaab made pull_up_simple_subquery set rte->subquery = NULL
after doing the deed, so that we don't waste cycles copying a
now-useless subquery tree around. This turns out to create a core dump
hazard in range_table_mutator, which supposes that that field is never
NULL. Apparently none of our own code invokes query_tree_mutator or
range_table_mutator on the top Query after subquery pullup; but it
wouldn't be surprising if outside code does, and anyway I'm working
on a v16 patch that will need it.
We can fix this cleanly by just getting rid of the special-case
handling of this field and treating it more like all the rest.
I think the special case might be left over from a time when
QTW_DONT_COPY_QUERY was the default behavior, but that was eons ago.
Thanks to Dean Rasheed for review.
Discussion: https://postgr.es/m/545569.
1656107045@sss.pgh.pa.us
Thomas Munro [Sat, 25 Jun 2022 22:40:06 +0000 (10:40 +1200)]
Don't trust signalfd() on illumos.
Since commit
6a2a70a02, we've used signalfd() to receive latch wakeups
when building with WAIT_USE_EPOLL (default for Linux and illumos), and
our traditional self-pipe when falling back to WAIT_USE_POLL (default
for other Unixes with neither epoll() nor kqueue()).
Unexplained hangs and kernel panics have been reported on illumos
systems, apparently linked to this use of signalfd(), leading illumos
users and build farm members to have to define WAIT_USE_POLL explicitly
as a work-around. A bug report exists at
https://www.illumos.org/issues/13700 but no fix is available yet.
Let's provide a way for illumos users to go back to self-pipes with
epoll(), like releases before 14, and choose that by default. No change
for Linux users. To help with development/debugging, macros
WAIT_USE_{EPOLL,POLL} and WAIT_USE_{SIGNALFD,SELF_PIPE} can be defined
explicitly to override the defaults.
Back-patch to 14, where we started using signalfd().
Reported-by: Japin Li <japinli@hotmail.com>
Reported-by: Olaf Bohlen <olbohlen@eenfach.de> (off-list)
Reviewed-by: Japin Li <japinli@hotmail.com>
Discussion: https://postgr.es/m/MEYP282MB1669C8D88F0997354C2313C1B6CA9%40MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
Noah Misch [Sat, 25 Jun 2022 16:07:41 +0000 (09:07 -0700)]
CREATE INDEX: use the original userid for more ACL checks.
Commit
a117cebd638dd02e5c2e791c25e43745f233111b used the original userid
for ACL checks located directly in DefineIndex(), but it still adopted
the table owner userid for more ACL checks than intended. That broke
dump/reload of indexes that refer to an operator class, collation, or
exclusion operator in a schema other than "public" or "pg_catalog".
Back-patch to v10 (all supported versions), like the earlier commit.
Nathan Bossart and Noah Misch
Discussion: https://postgr.es/m/
f8a4105f076544c180a87ef0c4822352@stmuk.bayern.de
Noah Misch [Sat, 25 Jun 2022 16:07:41 +0000 (09:07 -0700)]
Use --no-unlogged-table-data in t/027_stream_regress.pl.
This removes the need to drop unlogged relations in the src/test/regress
suite, like commit
dec8ad367e46180f826d5b6dc820fbecba1b71d2 did.
Reviewed by Thomas Munro.
Discussion: https://postgr.es/m/39945.
1650895508@sss.pgh.pa.us
Peter Eisentraut [Fri, 24 Jun 2022 11:03:59 +0000 (13:03 +0200)]
Remove unportable test
The ssl test "IPv4 host with CIDR mask does not match" apparently has
a portability problem. Some operating systems don't reject the host
name specification "192.0.2.1/32" as an IP address, and that is then
later rejected when the SNI is set, which results in a different error
message that the test is supposed to verify.
The value of the test has been questioned in the discussion, and it
was suggested that removing it would be an acceptable fix, so that's
what this is doing.
Reported-by: Nazir Bilal Yavuz <byavuz81@gmail.com>
Bug: #17522
Discussion: https://www.postgresql.org/message-id/flat/17522-
bfcd5c603b5f4daa%40postgresql.org
Amit Kapila [Fri, 24 Jun 2022 03:51:24 +0000 (09:21 +0530)]
Fix intermetent test failure in 028_row_filter.pl.
The test was not waiting for the subscriber's data synchronization to
happen after refreshing the publication on the subscriber side. This leads
subscriber's apply worker to skip applying the changes on the
corresponding relation which results in a test failure.
Reported-by: Hou Zhijie, as per buildfarm
Author: Hou Zhijie
Reviewed-by: Masahiko Sawada, Amit Kapila
Discussion: https://postgr.es/m/OS0PR01MB5716A69496A8E2F2E155DB8D94B59@OS0PR01MB5716.jpnprd01.prod.outlook.com
Amit Kapila [Fri, 24 Jun 2022 03:07:26 +0000 (08:37 +0530)]
Doc: clarify that tablesync ignores publish operation.
This patch documents that the initial data synchronization (tablesync) for
logical replication does not take into account the publication 'publish'
parameter when copying the existing table data.
Author: Peter Smith
Reviewed-by: Shi yu, Euler Taveira, Robert Haas, Amit Kapila
Discussion: https://postgr.es/m/CAHut+PtbfALjFpS2MkrvQ+wWQKByP7CNh9RtFta-r=BHEU3S3w@mail.gmail.com
Peter Eisentraut [Thu, 23 Jun 2022 20:40:52 +0000 (22:40 +0200)]
Fix missing newline at end of message
Michael Paquier [Thu, 23 Jun 2022 07:42:27 +0000 (16:42 +0900)]
Fix typo in pg_publication.c
Author: Peter Smith
Discussion: https://postgr.es/m/CAHut+PuV2XXjC4spHXy_EOhpD6MDrmmDMWnVJLYpd1_P=2+mJw@mail.gmail.com
Peter Eisentraut [Thu, 23 Jun 2022 06:59:27 +0000 (08:59 +0200)]
PL/Tcl: Don't link with -lc explicitly
It has been reported that PL/Tcl built on macOS with GCC >=11 crashes.
The reason is that there is a hash_search() function in the operating
system's libraries, and that ends up being called instead of the one
in postgres. This has something to do with how the linker resolves
references between the various possibilities it has been given, and
somehow something changed that it is now picking that one in this
configuration.
We found that removing the -lc from the link command line fixes this
problem. The -lc was introduced a long time ago in commit
e3909672f12e0ddf3e202b824fda068ad2195ef2, and we think the reasons
might be obsolete, so we decided that we'll try to just remove it and
see if any problems arise.
Discussion: https://www.postgresql.org/message-id/flat/
a78c847a-4f79-9286-be99-
e819e9e4139e%40enterprisedb.com
Amit Kapila [Thu, 23 Jun 2022 03:53:46 +0000 (09:23 +0530)]
Fix memory leak due to LogicalRepRelMapEntry.attrmap.
When rebuilding the relation mapping on subscribers, we were not releasing
the attribute mapping's memory which was no longer required.
The attribute mapping used in logical tuple conversion was refactored in
PG13 (by commit
e1551f96e6) but we forgot to update the related code that
frees the attribute map.
Author: Hou Zhijie
Reviewed-by: Amit Langote, Amit Kapila, Shi yu
Backpatch-through: 10, where it was introduced
Discussion: https://postgr.es/m/OSZPR01MB6310F46CD425A967E4AEF736FDA49@OSZPR01MB6310.jpnprd01.prod.outlook.com
Michael Paquier [Thu, 23 Jun 2022 01:49:20 +0000 (10:49 +0900)]
Fix two issues with HEADER MATCH in COPY
072132f0 used the attnum offset to access the raw_fields array when
checking that the attribute names of the header and of the relation
match, leading to incorrect results or even crashes if the attribute
numbers of a relation are changed, like on a dropped attribute. This
fixes the logic to use the correct attribute names for the header
matching requirements.
Also, this commit disallows HEADER MATCH in COPY TO as there is no
validation that can be done in this case.
The tests are expanded for HEADER MATCH with COPY FROM and dropped
columns, with cases where a relation has a dropped and re-added column,
as well as a reduced set of columns.
Author: Julien Rouhaud
Reviewed-by: Peter Eisentraut, Michael Paquier
Discussion: https://postgr.es/m/
20220607154744.vvmitnqhyxrne5ms@jrouhaud
Andres Freund [Wed, 22 Jun 2022 23:50:14 +0000 (16:50 -0700)]
pgstat: Mention pgstat_replslot.c in pgstat.c.
Oversight, by me, in commit
5891c7a8ed8.
Author: "Drouvot, Bertrand" <bdrouvot@amazon.com>
Discussion: https://postgr.es/m/
bd58e027-6598-57a2-679b-
d576d17bfaa9@amazon.com
Bruce Momjian [Wed, 22 Jun 2022 20:59:54 +0000 (16:59 -0400)]
doc: improve wording of plpgsql RAISE format text
Reported-by: pg@kirasoft.com
Discussion: https://postgr.es/m/
165455351426.573551.
7050474465030525109@wrigleys.postgresql.org
Backpatch-through: 10
Bruce Momjian [Wed, 22 Jun 2022 18:33:26 +0000 (14:33 -0400)]
doc: clarify wording about phantom reads
Reported-by: akhilhello@gmail.com
Discussion: https://postgr.es/m/
165222922369.669.
10475917322916060899@wrigleys.postgresql.org
Backpatch-through: 10
Robert Haas [Wed, 22 Jun 2022 17:11:49 +0000 (13:11 -0400)]
amcheck: Fix incorrect use of VARATT_IS_COMPRESSED.
The macro is being applied to a TOAST pointer, not a varlena header.
Therefore the use of VARATT_IS_COMPRESSED() is wrong. We can check
VARATT_EXTERNAL_IS_COMPRESSED(), but then we don't need the length
check that follows.
Report and fix by Kyotaro Horiguchi.
Discussion: http://postgr.es/m/
20220517.162719.
1671558681467343711.horikyota.ntt@gmail.com
Peter Eisentraut [Wed, 22 Jun 2022 12:24:48 +0000 (14:24 +0200)]
doc: Clean up title case use
Tom Lane [Tue, 21 Jun 2022 16:04:11 +0000 (12:04 -0400)]
Simplify tab completion of extension versions.
Second thoughts about
9cd43f6cb: given that we're staying bug-compatible
with the old behavior of using double not single quotes for extension
versions, we can simplify this completion code by pretending that
extension versions *are* identifiers, and not using VERBATIM. Then
_complete_from_query() will think that the query results are identifiers
in need of quoting, and we end up with the same behavior as before.
This doesn't work for Query_for_list_of_available_extension_versions_with_TO,
but let's just drop that: there is no other place where we handle
multi-keyword phrases that way, and it doesn't seem very desirable here
either. Handle completion of "UPDATE TO" in our more usual pattern.
Discussion: https://postgr.es/m/CAMkU=1yV+egSYrzWvbDY8VZ6bKEMrKbzxr-HTuiHi+wDgSUMgA@mail.gmail.com