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This has always worked, but you'd be unlikely to guess it
from the documentation. Add an example showing it.
Lack of docs noted by David Johnston. Back-patch to v13;
the documentation layout we used before that was not very
amenable to squeezing in multiple examples.
Discussion: https://postgr.es/m/CAKFQuwZ4Vy1Xty0G5Ok+ot=NDrU3C6hzF1JwUk-FEkwe3V9_RA@mail.gmail.com
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Rearrange the discussion of user-private schemas so that details
applying only to upgraded-from-pre-v15 databases are in a follow-on
paragraph, not in the main description of how to set up this pattern.
This seems a little clearer even today, and it'll get more so as
pre-v15 systems fade into the sunset.
Wording contributions from Robert Haas, Tom Lane, Noah Misch.
Discussion: https://postgr.es/m/CA+TgmoYUHsfp90inEMAP0yNr7Y_L6EphPH1YOon1JKtBztXHyQ@mail.gmail.com
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This doc patch (master hash 66bc9d2d3e) was decided to be too
significant for backpatching, so reverted in all but master. Also fix
SGML file header comment in master.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/c6304b19-6ff7-f3af-0148-cf7aa7e2fbfd@enterprisedb.com
Backpatch-through: 11
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This also adds references to this new chapter at relevant sections of
our documentation. Previously much of these internal details were
exposed to users, but not explained. This also updates RELEASE
SAVEPOINT.
Discussion: https://postgr.es/m/CANbhV-E_iy9fmrErxrCh8TZTyenpfo72Hf_XD2HLDppva4dUNA@mail.gmail.com
Author: Simon Riggs, Laurenz Albe
Reviewed-by: Bruce Momjian
Backpatch-through: 11
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The Hunspell project moved from Sourceforge to Github sometime
in 2016, so update our links to match the new URL. Backpatch
the doc changes to all supported versions.
Discussion: https://postgr.es/m/DC9A662A-360D-4125-A453-5A6CB9C6C4B4@yesql.se
Backpatch-through: v11
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This column is new in v16, but it was listed in the v15 docs too
via a back-patching fumble.
Per report from Peter Gigowski; diagnosis by Julien Rouhaud.
Discussion: https://postgr.es/m/CAM7cJ6XY_PAmx0kGn6U307EKZ+qXDFEBH27WP87-_ygetnBuxQ@mail.gmail.com
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Commit fede15417 introduced FILTER by jamming it into the existing
example introducing HAVING, which seems pedagogically poor to me;
and it added no information about what the keyword actually does.
Not to mention that the claimed output didn't match the sample
data being used in this running example.
Revert that and instead make an independent example using FILTER.
To help drive home the point that it's a per-aggregate filter,
we need to use two aggregates not just one; for consistency
expand all the examples in this segment to do that.
Also adjust the example using WHERE ... LIKE so that it'd produce
nonempty output with this sample data, and show that output.
Back-patch, as the previous patch was. (Sadly, v10 is now out
of scope.)
Discussion: https://postgr.es/m/166794307526.652.9073408178177444190@wrigleys.postgresql.org
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As usual, the release notes for other branches will be made by cutting
these down, but put them up for community review first.
Also as usual for a .1 release, there are some entries here that
are not really relevant for v15 because they already appeared in 15.0.
Those'll be removed later.
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In the docs, the GUC flags that pg_settings_get_flags() reported were
listed using <simplelist>. But the list was treated as separate lines
in the existing function table and didn't look good. For better view,
this commit separates the list from the table entry for
pg_settings_get_flags() and adds the table for it at the bottom of
the existing function table.
Author: Fujii Masao
Reviewed-by: Alvaro Herrera, Michael Paquier
Discussion: https://postgr.es/m/f093edf9-6e5a-b119-ee50-6a2c97c79ee8@oss.nttdata.com
Back-patch of f2d0c7f18 into v15.
Discussion: https://postgr.es/m/20221103123320.GQ16921@telsasoft.com
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pg_ident_file_mappings.line_number was described as a line number in
pg_ident.conf for a "rule" number, but this should refer to a "map".
The same inconsistent term was used in the main paragraph describing the
view.
Extracted from a patch by the same author. Issue introduced by
a2c8499 where this view has been added.
Author: Julien Rouhaud
Discussion: https://postgr.es/m/20221026031948.cbrnzgy5e7glsq2d@jrouhaud
Backpatch-through: 15
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This name was incorrect in the underlying commit message. (The
correct name is already listed.)
Reported-by: Mark Wong
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This entry was listed as a "string", but it is a "number. The other
fields are correctly described, on a second look.
Reported-by: Nuko Yokohama
Author: Tatsuo Ishii
Discussion: https://postgr.es/m/CAF3Gu1awoVoDP5d0_eN=cR=QkGVwH+OtFvwJkkc5cB_ZMWjyeA@mail.gmail.com
Backpatch-through: 15
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56788d215 adjusted the parallel seq scan code so that instead of handing
out a single block at a time to parallel workers, it now hands out ranges
of blocks.
Here we update the documentation which still claimed that workers received
just 1 block at a time.
Reported-by: Zhang Mingli
Discussion: https://postgr.es/m/17c99615-2c3b-4e4e-9d0b-424a66a7bccd@Spark
Backpatch-through: 14, where 56788d215 was added.
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As currently designed, with a callback registered in a ERROR_CLEANUP
block, the shutdown callback would get called twice when updating
archive_library on SIGHUP, which is something that we want to avoid to
ease the life of extension writers.
Anyway, an ERROR in the archiver process is treated as a FATAL, stopping
it immediately, hence there is no need for a ERROR_CLEANUP block.
Instead of that, the shutdown callback is not called upon
before_shmem_exit(), giving to the modules the opportunity to do any
cleanup actions before the server shuts down its subsystems.
While on it, this commit adds some testing coverage for the shutdown
callback. Neither shell_archive nor basic_archive have been using it,
and one is added to shell_archive, whose trigger is checked in a TAP
test through a shutdown sequence.
Author: Nathan Bossart, Bharath Rupireddy
Reviewed-by: Kyotaro Horiguchi, Michael Paquier
Discussion: https://postgr.es/m/20221015221328.GB1821022@nathanxps13
Backpatch-through: 15
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It was previously easily overlooked at the end of several tables.
Reported-by: Alex Denman
Discussion: https://postgr.es/m/166335888474.659.16897487975376230364@wrigleys.postgresql.org
Backpatch-through: 10
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The fix is to run ANALYZE.
Discussion: https://postgr.es/m/YzRr+ys98UzVQJvK@momjian.us,
https://postgr.es/m/flat/CAKJS1f8DTbCHf9gedU0He6ARsd58E6qOhEHM1caomqj_r9MOiQ%40mail.gmail.com,
https://postgr.es/m/CAKJS1f80o98hcfSk8j%3DfdN09S7Sjz%2BvuzhEwbyQqvHJb_sZw0g%40mail.gmail.com
Backpatch-through: 10
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While at it, simplify wording a bit.
Author: Takamichi Osumi <osumi.takamichi@fujitsu.com>
Reviewed-by: Peter Smith <smithpb2250@gmail.com>
Discussion: https://postgr.es/m/TYCPR01MB8373F93F5D094A2BE648990DED259@TYCPR01MB8373.jpnprd01.prod.outlook.com
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The output plugin name is a mandatory option when creating a logical
slot, but the grammar documented was not described as such. While on
it, fix two comments in repl_gram.y to show that TEMPORARY is an
optional grammar choice.
Author: Ayaki Tachikake
Discussion: https://postgr.es/m/OSAPR01MB2852607B2329FFA27834105AF1229@OSAPR01MB2852.jpnprd01.prod.outlook.com
Backpatch-through: 15
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Add
After=network-online.target
Wants=network-online.target
to the suggested unit file for starting a Postgres server.
This delays startup until the network interfaces have been
configured; without that, any attempt to bind to a specific
IP address will fail.
If listen_addresses is set to "localhost" or "*", it might be
possible to get away with the less restrictive "network.target",
but I don't think we need to get into such detail here.
Per suggestion from Pablo Federico.
Discussion: https://postgr.es/m/166552157407.591805.10036014441784710940@wrigleys.postgresql.org
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Drat, forgot this ...
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current through c3b5992b91c4b0d2c4f4eab0fb856f34854c129d
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Reported-by: Elena Indrupskaya
Discussion: https://postgr.es/m/0af43b49-1646-93d0-ccf1-bb3c635c8c6f@postgrespro.ru
Author: Elena Indrupskaya
Backpatch-through: 15 only
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Reported-by: Elena Indrupskaya
Discussion: https://postgr.es/m/0af43b49-1646-93d0-ccf1-bb3c635c8c6f@postgrespro.ru
Author: Elena Indrupskaya
Backpatch-through: 15
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This reverts commit db0d67db2401eb6238ccc04c6407a4fd4f985832 and
several follow-on fixes. The idea of making a cost-based choice
of the order of the sorting columns is not fundamentally unsound,
but it requires cost information and data statistics that we don't
really have. For example, relying on procost to distinguish the
relative costs of different sort comparators is pretty pointless
so long as most such comparator functions are labeled with cost 1.0.
Moreover, estimating the number of comparisons done by Quicksort
requires more than just an estimate of the number of distinct values
in the input: you also need some idea of the sizes of the larger
groups, if you want an estimate that's good to better than a factor of
three or so. That's data that's often unknown or not very reliable.
Worse, to arrive at estimates of the number of calls made to the
lower-order-column comparison functions, the code needs to make
estimates of the numbers of distinct values of multiple columns,
which are necessarily even less trustworthy than per-column stats.
Even if all the inputs are perfectly reliable, the cost algorithm
as-implemented cannot offer useful information about how to order
sorting columns beyond the point at which the average group size
is estimated to drop to 1.
Close inspection of the code added by db0d67db2 shows that there
are also multiple small bugs. These could have been fixed, but
there's not much point if we don't trust the estimates to be
accurate in-principle.
Finally, the changes in cost_sort's behavior made for very large
changes (often a factor of 2 or so) in the cost estimates for all
sorting operations, not only those for multi-column GROUP BY.
That naturally changes plan choices in many situations, and there's
precious little evidence to show that the changes are for the better.
Given the above doubts about whether the new estimates are really
trustworthy, it's hard to summon much confidence that these changes
are better on the average.
Since we're hard up against the release deadline for v15, let's
revert these changes for now. We can always try again later.
Note: in v15, I left T_PathKeyInfo in place in nodes.h even though
it's unreferenced. Removing it would be an ABI break, and it seems
a bit late in the release cycle for that.
Discussion: https://postgr.es/m/TYAPR01MB586665EB5FB2C3807E893941F5579@TYAPR01MB5866.jpnprd01.prod.outlook.com
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This fixes some areas related to logical replication and custom RMGRs.
Author: Ekaterina Kiryanova
Discussion: https://postgr.es/m/fa4773f1-1396-384a-bcd7-85b5e013f399@postgrespro.ru
Backpatch-through: 15
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The compression parameter to PQsslAttribute has never returned the
compression method used, it has always returned "on" or "off since
it was added in commit 91fa7b4719ac. Backpatch through v10.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/B9EC60EC-F665-47E8-A221-398C76E382C9@yesql.se
Backpatch-through: v10
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Commit ebc8b7d44 intended to change the behavior of
PQsslAttribute(NULL, "library"), but accidentally also changed
what happens with a non-NULL conn pointer. Undo that so that
only the intended behavior change happens. Clarify some
associated documentation.
Per bug #17625 from Heath Lord. Back-patch to v15.
Discussion: https://postgr.es/m/17625-fc47c78b7d71b534@postgresql.org
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Reported-by: Tom Lane
Discussion: https://postgr.es/m/3976627.1662651004@sss.pgh.pa.us
Backpatch-through: 10
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doc revert of commit 1703726488. Change was applied to irrelevant
branches, and was not detailed enough to be helpful in relevant
branches.
Reported-by: Peter Eisentraut, Noah Misch
Discussion: https://postgr.es/m/a2dc9de4-24fc-3222-87d3-0def8057d7d8@enterprisedb.com
Backpatch-through: 10
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We weren't jumbling the merge action list, so wildly different commands
would be considered to use the same query ID. Add that, mention it in
the docs, and some test lines.
Backpatch to 15.
Author: Tatsu <bt22nakamorit@oss.nttdata.com>
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://postgr.es/m/d87e391694db75a038abc3b2597828e8@oss.nttdata.com
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The change made in 9d9c02ccd also affects the dense_rank() function.
Mention this in the release notes.
Author: Jonathan S. Katz
Discussion: https://postgr.es/m/5c6d3f50-e9b5-f62d-d58a-7b22eb91d8b8@postgresql.org
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Per suggestions from Justin Pryzby.
Discussion: https://postgr.es/m/20220925215009.GC21938@telsasoft.com
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I'd misunderstood how it worked in 5f1048881.
Discussion: https://postgr.es/m/20220925215009.GC21938@telsasoft.com
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current through 15113bfb467a84688744b57b74a14550878d0224
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This has been removed in HEAD by commit a234177906, so doing just backpatch
to 15 where it was introduced in commit 860ea46ba7.
Author: Zhang Mingli
Discussion: https://postgr.es/m/OS0PR01MB57162559C01FE2848C12E8F7944D9@OS0PR01MB5716.jpnprd01.prod.outlook.com
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Use "prepared transaction" instead of "two-phrase transaction". This
is in line with c5d67881d343a507269bde124a49df19e0296157.
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Rearrange, reword, clarify, fix markup, etc etc.
Also include commit bd8ac900d.
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Improve a couple of things I noticed while working on v15
release notes.
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Account for commits since 2022-06-11.
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The extended query protocol implementation I added in commit
acb7e4eb6b1c has bugs when used in pipeline mode. Rather than spend
more time trying to fix it, remove that code and make the function rely
on simple query protocol only, meaning it can no longer be used in
pipeline mode.
Users can easily change their applications to use PQsendQueryParams
instead. We leave PQsendQuery in place for Postgres 14, just in case
somebody is using it and has not hit the mentioned bugs; but we should
recommend that it not be used.
Backpatch to 15.
Per bug report from Gabriele Varrazzo.
Discussion: https://postgr.es/m/CA+mi_8ZGSQNmW6-mk_iSR4JZB_LJ4ww3suOF+1vGNs3MrLsv4g@mail.gmail.com
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Jonathan Katz (word-smithed a bit by me)
Discussion: https://postgr.es/m/a6661e2c-72e0-b4bd-9301-9225bdddda4c@postgresql.org
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We previously thought that allowing such cases can confuse users when they
specify DROP TABLES IN SCHEMA but that doesn't seem to be the case based
on discussion. This helps to uplift the restriction during
ALTER TABLE ... SET SCHEMA which used to ensure that we couldn't end up
with a publication having both a schema and the same schema's table.
To allow this, we need to forbid having any schema on a publication if
column lists on a table are specified (and vice versa). This is because
otherwise we still need a restriction during ALTER TABLE ... SET SCHEMA to
forbid cases where it could lead to a publication having both a schema and
the same schema's table with column list.
Based on suggestions by Peter Eisentraut.
Author: Hou Zhijie and Vignesh C
Reviewed-By: Peter Smith, Amit Kapila
Backpatch-through: 15, where it was introduced
Discussion: https://postgr.es/m/2729c9e2-9aac-8cda-f2f4-34f2bcc18f4e@enterprisedb.com
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This may be a bit too subtle, but removing that word from there makes
this clause no longer a perfect parallel of the GRANT variant "ALL
TABLES IN SCHEMA": indeed, for publications what we record is the schema
itself, not the tables therein, which means that any tables added to the
schema in the future are also published. This is completely different
to what GRANT does, which is affect only the tables that exist when the
command is executed.
There isn't resounding support for this change, but there are a few
positive votes and no opposition. Because the time to 15 RC1 is very
short, let's get this out now.
Backpatch to 15.
Discussion: https://postgr.es/m/2729c9e2-9aac-8cda-f2f4-34f2bcc18f4e
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Commit 5ef1eefd76f404ddc59b885d50340e602b70f05f, which added
archive_library, purged most mentions of archive_command from the
documentation. This is inappropriate, since archive_command is still
a feature in use and users will want to see information about it.
This restores all the removed mentions and rephrases things so that
archive_command and archive_library are presented as alternatives of
each other.
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://www.postgresql.org/message-id/9366d634-a917-85a9-4991-b2a4859edaf9@enterprisedb.com
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The bounds hardcoded in compression.c since ffd5365 (minimum at 1 and
maximum at 22) do not match the reality of what zstd is able to
handle, these values being available via ZSTD_maxCLevel() and
ZSTD_minCLevel() at run-time. The maximum of 22 is actually correct
in recent versions, but the minimum was not as the library can go down
to -131720 by design. This commit changes the code to use the run-time
values in the code instead of some hardcoded ones.
Zstd seems to assume that these bounds could change in the future, and
Postgres will be able to adapt automatically to such changes thanks to
what's being done in this commit.
Reported-by: Justin Prysby
Discussion: https://postgr.es/m/20220922033716.GL31833@telsasoft.com
Backpatch-through: 15
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Commit 6c2003f8a1 changed the snapshot names mentioned in
SET TRANSACTION docs, however, there was one place that
the commit missed updating the name.
Back-patch to all supported versions.
Author: Japin Li
Reviewed-by: Fujii Masao
Discussion: https://postgr.es/m/MEYP282MB1669BD4280044501165F8B07B64F9@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
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The parameter controlling if two-phase transactions can be decoded was
named "two_phase" in the documentation while its procedure defines
"twophase".
Author: Florin Irion
Discussion: https://postgr.es/m/5eeabd10-1aff-ea61-f92d-9fa0d9a7e207@gmail.com
Backpatch-through: 14
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