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OpenSSL in FIPS mode rejects several encrypted private keys used in
the test suites ssl and ssl_passphrase_callback. This is because they
are in a "traditional" OpenSSL format that uses MD5 for key
generation. The fix is to convert them to the more standard PKCS#8
format that uses SHA1 for key derivation.
This commit contains the converted keys, with the conversion done like
this:
openssl pkcs8 -topk8 -in src/test/modules/ssl_passphrase_callback/server.key -passin pass:FooBaR1 -out src/test/modules/ssl_passphrase_callback/server.key.new -passout pass:FooBaR1
mv src/test/modules/ssl_passphrase_callback/server.key.new src/test/modules/ssl_passphrase_callback/server.key
etc., as well as updated build rules to generate the keys in the new
format if they need to be regenerated.
Reviewed-by: Jacob Champion <jchampion@timescale.com>
Discussion: https://www.postgresql.org/message-id/flat/64de784b-8833-e055-3bd4-7420e6675351%40eisentraut.org
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Interval values now generate an error when the user has multiple
consecutive units or a unit without a value. Previously, it was
possible to specify multiple units consecutively which is contrary to
what the documentation allows, so it was possible to finish with
confusing interval values.
This is a follow-up of the work done in 165d581f146b.
Author: Joseph Koshakow
Reviewed-by: Jacob Champion, Gurjeet Singh, Reid Thompson
Discussion: https://postgr.es/m/CAAvxfHd-yNO+XYnUxL=GaNZ1n+eE0V-oE0+-cC1jdjdU0KS3iw@mail.gmail.com
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This commit Restrict the unit "ago" to only appear at the end of the
interval. According to the documentation, a direction can only be
defined at the end of an interval, but it was possible to define it in
the middle of the string or define it multiple times.
In spirit, this is similar to the error handling improvements done in
5b3c5953553b or bcc704b524904.
Author: Joseph Koshakow
Reviewed-by: Jacob Champion, Gurjeet Singh, Reid Thompson
Discussion: https://postgr.es/m/CAAvxfHd-yNO+XYnUxL=GaNZ1n+eE0V-oE0+-cC1jdjdU0KS3iw@mail.gmail.com
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Adding an extra LOG for connections that have not set an authn ID, like
when the "trust" authentication method is used, is useful for audit
purposes.
A couple of TAP tests for SSL and authentication need to be tweaked to
adapt to this new LOG generated, as some scenarios expected no logs but
they now get a hit.
Reported-by: Shaun Thomas
Author: Jacob Champion
Reviewed-by: Robert Haas, Michael Paquier
Discussion: https://postgr.es/m/CAFdbL1N7-GF-ZXKaB3XuGA+CkSmnjFvqb8hgjMnDfd+uhL2u-A@mail.gmail.com
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Commit 252dcb32 used cp -a, but apparently Solaris doesn't like that. Use cp
-RPp instead.
Author: Thomas Munro <thomas.munro@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/CA+hUKGL10AoQVMMqgOJ8CTjoz9MLidD8ik2e8PibzLNMz0+aRg@mail.gmail.com
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Per buildfarm member Hippopotamus
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We now create contype='n' pg_constraint rows for not-null constraints.
We propagate these constraints to other tables during operations such as
adding inheritance relationships, creating and attaching partitions and
creating tables LIKE other tables. We also spawn not-null constraints
for inheritance child tables when their parents have primary keys.
These related constraints mostly follow the well-known rules of
conislocal and coninhcount that we have for CHECK constraints, with some
adaptations: for example, as opposed to CHECK constraints, we don't
match not-null ones by name when descending a hierarchy to alter it,
instead matching by column name that they apply to. This means we don't
require the constraint names to be identical across a hierarchy.
For now, we omit them for system catalogs. Maybe this is worth
reconsidering. We don't support NOT VALID nor DEFERRABLE clauses
either; these can be added as separate features later (this patch is
already large and complicated enough.)
psql shows these constraints in \d+.
pg_dump requires some ad-hoc hacks, particularly when dumping a primary
key. We now create one "throwaway" not-null constraint for each column
in the PK together with the CREATE TABLE command, and once the PK is
created, all those throwaway constraints are removed. This avoids
having to check each tuple for nullness when the dump restores the
primary key creation.
pg_upgrading from an older release requires a somewhat brittle procedure
to create a constraint state that matches what would be created if the
database were being created fresh in Postgres 17. I have tested all the
scenarios I could think of, and it works correctly as far as I can tell,
but I could have neglected weird cases.
This patch has been very long in the making. The first patch was
written by Bernd Helmle in 2010 to add a new pg_constraint.contype value
('n'), which I (Álvaro) then hijacked in 2011 and 2012, until that one
was killed by the realization that we ought to use contype='c' instead:
manufactured CHECK constraints. However, later SQL standard
development, as well as nonobvious emergent properties of that design
(mostly, failure to distinguish them from "normal" CHECK constraints as
well as the performance implication of having to test the CHECK
expression) led us to reconsider this choice, so now the current
implementation uses contype='n' again. During Postgres 16 this had
already been introduced by commit e056c557aef4, but there were some
problems mainly with the pg_upgrade procedure that couldn't be fixed in
reasonable time, so it was reverted.
In 2016 Vitaly Burovoy also worked on this feature[1] but found no
consensus for his proposed approach, which was claimed to be closer to
the letter of the standard, requiring an additional pg_attribute column
to track the OID of the not-null constraint for that column.
[1] https://postgr.es/m/CAKOSWNkN6HSyatuys8xZxzRCR-KL1OkHS5-b9qd9bf1Rad3PLA@mail.gmail.com
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Author: Bernd Helmle <mailings@oopsware.de>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
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When running all (or just many) of our tests, a significant portion of both
CPU time and IO is spent running initdb. Most of those initdb runs don't
specify any options influencing properties of the created data directory.
Avoid most of that overhead by creating a "template" data directory, alongside
the temporary installation. Instead of running initdb, pg_regress and tap
tests can copy that data directory. When a tap test specifies options to
initdb, the template data directory is not used. That could be relaxed for
some options, but it's not clear it's worth the effort.
There unfortunately is some duplication between pg_regress.c and Cluster.pm,
but there are no easy ways of sharing that code without introducing additional
complexity.
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/20220120021859.3zpsfqn4z7ob7afz@alap3.anarazel.de
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This code is insufficiently covered by tests, so add a few small test
cases to immortalize its behavior before it gets rewritten completely by
the project to catalog NOT NULL constraints.
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getprotobyname returns undefined on some CI machines. It's not clear
why. The code overall still works, but it raises a warning.
In PostgreSQL C code, we always call socket() with 0 for the protocol
argument, so we should be able to do the same in Perl (since the Perl
documentation says that the arguments of the socket function are the
same as in C). So do that, to avoid the issue.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
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This commit introduces functions for converting numbers to their
equivalent binary and octal representations. Also, the base
conversion code for these functions and to_hex() has been moved to
a common helper function.
Co-authored-by: Eric Radman
Reviewed-by: Ian Barwick, Dag Lem, Vignesh C, Tom Lane, Peter Eisentraut, Kirk Wolak, Vik Fearing, John Naylor, Dean Rasheed
Discussion: https://postgr.es/m/Y6IyTQQ/TsD5wnsH%40vm3.eradman.com
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This commit fixes the function of $subject for shared relations. This
feature has been added by e042678. Unfortunately, this new behavior got
removed by 5891c7a when moving statistics to shared memory.
Reported-by: Mitsuru Hinata
Author: Masahiro Ikeda
Reviewed-by: Kyotaro Horiguchi, Masahiko Sawada
Discussion: https://postgr.es/m/7cc69f863d9b1bc677544e3accd0e4b4@oss.nttdata.com
Backpatch-through: 15
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This new view, wrapped around a SRF, shows some information known about
wait events, as of:
- Name.
- Type (Activity, I/O, Extension, etc.).
- Description.
All the information retrieved comes from wait_event_names.txt, and the
description is the same as the documentation with filters applied to
remove any XML markups. This view is useful when joined with
pg_stat_activity to get the description of a wait event reported.
Custom wait events for extensions are included in the view.
Original idea by Yves Colin.
Author: Bertrand Drouvot
Reviewed-by: Kyotaro Horiguchi, Masahiro Ikeda, Tom Lane, Michael
Paquier
Discussion: https://postgr.es/m/0e2ae164-dc89-03c3-cf7f-de86378053ac@gmail.com
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There was a warning that FORMAT JSON has no effect on json/jsonb
types, which is true, but it's not clear why we should issue a warning
about it. The SQL standard does not say anything about this, which
should generally govern the behavior here. So remove it.
Discussion: https://www.postgresql.org/message-id/flat/dfec2cae-d17e-c508-6d16-c2dba82db486%40eisentraut.org
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The OAT hooks are added in ALTER TABLE for the following subcommands:
- { ENABLE | DISABLE | [NO] FORCE } ROW LEVEL SECURITY
- { ENABLE | DISABLE } TRIGGER
- { ENABLE | DISABLE } RULE. Note that there was hook for pg_rewrite,
but not for relation ALTER'ed in pg_class.
Tests are added to test_oat_hook for all the subcommand patterns gaining
hooks here. Based on an ask from Legs Mansion.
Discussion: https://postgr.es/m/tencent_083B3850655AC6EE04FA0A400766D3FE8309@qq.com
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We had essentially the same error in several different wordings.
Unify that.
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Currently, the names of the custom wait event must be registered for
each backend, requiring all these to link to the shared memory area of
an extension, even if these are not loaded with
shared_preload_libraries.
This patch relaxes the constraints related to this infrastructure by
storing the wait events and their names in two dynamic hash tables in
shared memory. This has the advantage to simplify the registration of
custom wait events to a single routine call that returns an event ID
ready for consumption:
uint32 WaitEventExtensionNew(const char *wait_event_name);
The caller of this routine can then cache locally the ID returned, to be
used for pgstat_report_wait_start(), WaitLatch() or a similar routine.
The implementation uses two hash tables: one with a key based on the
event name to avoid duplicates and a second using the event ID as key
for event lookups, like on pg_stat_activity. These tables can hold a
minimum of 16 entries, and a maximum of 128 entries, which should be plenty
enough.
The code changes done in worker_spi show how things are simplified (most
of the code removed in this commit comes from there):
- worker_spi_init() is gone.
- No more shared memory hooks required (size requested and
initialization).
- The custom wait event ID is cached in the process that needs to set
it, with one single call to WaitEventExtensionNew() to retrieve it.
Per suggestion from Andres Freund.
Author: Masahiro Ikeda, with a few tweaks from me.
Discussion: https://postgr.es/m/20230801032349.aaiuvhtrcvvcwzcx@awork3.anarazel.de
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The fix itself is fine, but the test revealed other problems related
to parallel query that are not easily fixable. Remove the test for
now to fix the buildfarm.
Discussion: https://postgr.es/m/88825.1691665432@sss.pgh.pa.us
Backpatch-through: 11
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Renaming a role can affect the meaning of the special string $user, so
must cause search_path to be recalculated.
Discussion: https://postgr.es/m/186761d32c0255debbdf50b6310b581b9c973e6c.camel@j-davis.com
Reviewed-by: Nathan Bossart, Michael Paquier
Backpatch-through: 11
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Substituting such values in extension scripts facilitated SQL injection
when @extowner@, @extschema@, or @extschema:...@ appeared inside a
quoting construct (dollar quoting, '', or ""). No bundled extension was
vulnerable. Vulnerable uses do appear in a documentation example and in
non-bundled extensions. Hence, the attack prerequisite was an
administrator having installed files of a vulnerable, trusted,
non-bundled extension. Subject to that prerequisite, this enabled an
attacker having database-level CREATE privilege to execute arbitrary
code as the bootstrap superuser. By blocking this attack in the core
server, there's no need to modify individual extensions. Back-patch to
v11 (all supported versions).
Reported by Micah Gate, Valerie Woolard, Tim Carey-Smith, and Christoph
Berg.
Security: CVE-2023-39417
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If MERGE executes an UPDATE action on a table with row-level security,
the code incorrectly applied the WITH CHECK clauses from the target
table's INSERT policies to new rows, instead of the clauses from the
table's UPDATE policies. In addition, it failed to check new rows
against the target table's SELECT policies, if SELECT permissions were
required (likely to always be the case).
In addition, if MERGE executes a DO NOTHING action for matched rows,
the code incorrectly applied the USING clauses from the target table's
DELETE policies to existing target tuples. These policies were applied
as checks that would throw an error, if they did not pass.
Fix this, so that a MERGE UPDATE action applies the same RLS policies
as a plain UPDATE query with a WHERE clause, and a DO NOTHING action
does not apply any RLS checks (other than adding clauses from SELECT
policies to the join).
Back-patch to v15, where MERGE was introduced.
Dean Rasheed, reviewed by Stephen Frost.
Security: CVE-2023-39418
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This test was recently added in 3900a02c9. It appears to be unstable in
regards to the join order presumably due to the relations at either side
of the join being equal in side. Here we add a qual to make one of them
smaller so the planner is more likely to choose to hash the smaller of the
two.
Reported-by: Nathan Bossart, Tom Lane
Discussion: https://www.postgr.es/m/20230803235403.GC1238296@nathanxps13
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Here we adjust the costs for WindowAggs so that they properly take into
account how much of their subnode they must read before outputting the
first row. Without this, we always assumed that the startup cost for the
WindowAgg was not much more expensive than the startup cost of its
subnode, however, that's going to be completely wrong in many cases. The
WindowAgg may have to read *all* of its subnode to output a single row
with certain window bound options.
Here we estimate how many rows we'll need to read from the WindowAgg's
subnode and proportionally add more of the subnode's run costs onto the
WindowAgg's startup costs according to how much of it we expect to have to
read in order to produce the first WindowAgg row.
The reason this is more important than we might have initially thought is
that we may end up making use of a path from the lower planner that works
well as a cheap startup plan when the query has a LIMIT clause, however,
the WindowAgg might mean we need to read far more rows than what the LIMIT
specifies.
No backpatch on this so as not to cause plan changes in released
versions.
Bug: #17862
Reported-by: Tim Palmer
Author: David Rowley
Reviewed-by: Andy Fan
Discussion: https://postgr.es/m/17862-1ab8f74b0f7b0611@postgresql.org
Discussion: https://postgr.es/m/CAApHDvrB0S5BMv+0-wTTqWFE-BJ0noWqTnDu9QQfjZ2VSpLv_g@mail.gmail.com
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The stats regression test attempts to ensure that Buffer Access Strategy
"reuses" are being counted in pg_stat_io by vacuuming a table which is larger
than the size of the strategy ring. However, when shared buffers are in
sufficiently high demand, another backend could evict one of the blocks in the
strategy ring before the first backend has a chance to reuse the buffer. The
backend using the strategy would then evict another shared buffer and add that
buffer to the strategy ring. This counts as an eviction and not a reuse in
pg_stat_io. Count both evictions and reuses in the test to ensure it does not
fail incorrectly.
Reported-by: Jeff Davis <pgsql@j-davis.com>,
Author: Melanie Plageman <melanieplageman@gmail.com>
Reviewed-by: Alexander Lakhin <exclusion@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/CAAKRu_bNG27AxG9TdPtwsL6wg8AWbVckjmTL2t1HF=miDQuNtw@mail.gmail.com
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Two backend routines are added to allow extension to allocate and define
custom wait events, all of these being allocated in the type
"Extension":
* WaitEventExtensionNew(), that allocates a wait event ID computed from
a counter in shared memory.
* WaitEventExtensionRegisterName(), to associate a custom string to the
wait event ID allocated.
Note that this includes an example of how to use this new facility in
worker_spi with tests in TAP for various scenarios, and some
documentation about how to use them.
Any code in the tree that currently uses WAIT_EVENT_EXTENSION could
switch to this new facility to define custom wait events. This is left
as work for future patches.
Author: Masahiro Ikeda
Reviewed-by: Andres Freund, Michael Paquier, Tristan Partin, Bharath
Rupireddy
Discussion: https://postgr.es/m/b9f5411acda0cf15c8fbb767702ff43e@oss.nttdata.com
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The second portion of the tests had a race condition where it would be
possible for the startup of the dynamic workers to fail, in the event
where the static workers started before them with the library loading in
shared_preload_libraries did not finish to create their respective
schemas. The conflict is caused by the fact that the dynamic and static
workers used the same IDs, overlapping each other, so, for now, switch
the dynamic workers to use different IDs, leading to different schemas
created.
Reported-by: Andres Freund
Discussion: https://postgr.es/m/20230728022332.egqzobhskmlf6ntr@awork3.anarazel.de
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This commit moves worker_spi to use TAP tests. sql/worker_spi.sql is
gone, replaced by an equivalent set of queries in a TAP script, without
worker_spi loaded in shared_preload_libraries:
- One query to launch a worker dynamically, relying now on "postgres" as
the default database to connect to.
- Two wait queries with poll_query_until(), one to wait for the worker
schema to be initialized and a second to wait for a tuple processed by
the worker.
- Server reload to accelerate the main loop of the spawned worker.
More coverage is added for workers registered when the library is loaded
with shared_preload_libraries, while on it, checking that these are
connecting to the database set in the GUC worker_spi.database.
A local run of these test is showing that TAP is slightly faster than
the original, while providing more coverage (3.7s vs 4.4s). There was
also some discussions about keeping the SQL tests, but this would
require initializing twice a cluster, increasing the runtime of the
tests up to 5.6s here.
These tests will be expanded more in an upcoming patch aimed at adding
support for custom wait events for the Extension class, still under
discussion, to check the new in-core APIs with and without a library set
in shared_preload_libraries.
Bharath has written the part where shared_preload_libraries is used,
while I have migrated the existing SQL tests to TAP.
Author: Bharath Rupireddy, Michael Paquier
Reviewed-by: Masahiro Ikeda
Discussion: https://postgr.es/m/CALj2ACWR9ncAiDF73unqdJF1dmsA2R0efGXX2624X+YVxcAVWg@mail.gmail.com
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This Patch introduces three SQL standard JSON functions:
JSON()
JSON_SCALAR()
JSON_SERIALIZE()
JSON() produces json values from text, bytea, json or jsonb values,
and has facilitites for handling duplicate keys.
JSON_SCALAR() produces a json value from any scalar sql value,
including json and jsonb.
JSON_SERIALIZE() produces text or bytea from input which containis
or represents json or jsonb;
For the most part these functions don't add any significant new
capabilities, but they will be of use to users wanting standard
compliant JSON handling.
Catversion bumped as this changes ruleutils.c.
Author: Nikita Glukhov <n.gluhov@postgrespro.ru>
Author: Teodor Sigaev <teodor@sigaev.ru>
Author: Oleg Bartunov <obartunov@gmail.com>
Author: Alexander Korotkov <aekorotkov@gmail.com>
Author: Andrew Dunstan <andrew@dunslane.net>
Author: Amit Langote <amitlangote09@gmail.com>
Reviewers have included (in no particular order) Andres Freund, Alexander
Korotkov, Pavel Stehule, Andrew Alsup, Erik Rijkers, Zihong Yu,
Himanshu Upadhyaya, Daniel Gustafsson, Justin Pryzby, Álvaro Herrera,
Peter Eisentraut
Discussion: https://postgr.es/m/cd0bb935-0158-78a7-08b5-904886deac4b@postgrespro.ru
Discussion: https://postgr.es/m/20220616233130.rparivafipt6doj3@alap3.anarazel.de
Discussion: https://postgr.es/m/abd9b83b-aa66-f230-3d6d-734817f0995d%40postgresql.org
Discussion: https://postgr.es/m/CA+HiwqE4XTdfb1nW=Ojoy_tQSRhYt-q_kb6i5d4xcKyrLC1Nbg@mail.gmail.com
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This gives a way to make a difference between workers registered when
the library is loaded with shared_preload_libraries and when these are
launched dynamically, in ps output or pg_stat_activity.
Extracted from a larger patch by the same author.
Author: Bharath Rupireddy
Reviewed-by: Masahiro Ikeda
Discussion: https://postgr.es/m/CALj2ACWR9ncAiDF73unqdJF1dmsA2R0efGXX2624X+YVxcAVWg@mail.gmail.com
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Because PostgreSQL::Version is very nuanced about development version
numbers, the comparison to 16beta2 makes it think that that release is
older than 16, therefore applying a database tweak that doesn't work
there (the comparison is only supposed to match when run on version 15).
As suggested by Andrew Dunstan, fix by having AdjustUpgrade.pm public
methods create a separate PostgreSQL::Version object to use for these
comparisons, that only carries the major version number.
While at it, have the same methods ensure that the objects given are of
the expected type.
Backpatch to 16. This module goes all the way back to 9.2, but there's
probably no need for this fix except where betas still live.
Co-authored-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/20230719110504.zbu74o54bqqlsufb@alvherre.pgsql
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On OpenBSD, setlocale() does not fail on an ICU-specific
locale. Remove the test.
Reported-by: Andres Freund
Discussion: https://postgr.es/m/20230702165615.k6waysygrefdeiiw@awork3.anarazel.de
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Applying add_outer_joins_to_relids() to a child join doesn't actually
work, even if we've built a SpecialJoinInfo specialized to the child,
because that function will also compare the join's relids to elements
of the main join_info_list, which only deal in regular relids not
child relids. This mistake escaped detection by the existing
partitionwise join tests because they didn't test any cases where
add_outer_joins_to_relids() needs to add additional OJ relids (that
is, any cases where join reordering per identity 3 is possible).
Instead, let's apply adjust_child_relids() to the relids of the parent
join. This requires minor code reordering to collect the relevant
AppendRelInfo structures first, but that's work we'd do shortly anyway.
Report and fix by Richard Guo; cosmetic changes by me
Discussion: https://postgr.es/m/CAMbWs49NCNbyubZWgci3o=_OTY=snCfAPtMnM-32f3mm-K-Ckw@mail.gmail.com
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Currently, the database name to connect is initialized only when the
module is loaded with shared_preload_libraries, causing any call of
worker_spi_launch() to fail if the library is not loaded for a dynamic
bgworker launch. Rather than making the GUC defining the database to
connect to a PGC_POSTMASTER, this commit switches worker_spi.database to
PGC_SIGHUP, loaded even if the module's library is loaded dynamically
for a worker.
We have been discussing about the integration of more advanced tests in
this module, with and without shared_preload_libraries set, so this
eases a bit the work planned in this area.
No backpatch is done as, while this is a bug, it changes the definition
of worker_spi.database.
Author: Masahiro Ikeda
Reviewed-by: Bharath Rupireddy
Discussion: https://postgr.es/m/d30d3ea7d21cb7c9e1e3cc47e301f1b6@oss.nttdata.com
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Due to an oversight in reviewing, this used functionality not
compatible with old versions of OpenSSL.
This reverts commit 75ec5e7bec700577d39d653c316e3ae6c505842c.
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This adds the X509 attributes notBefore and notAfter to sslinfo
as well as pg_stat_ssl to allow verifying and identifying the
validity period of the current client certificate.
Author: Cary Huang <cary.huang@highgo.ca>
Discussion: https://postgr.es/m/182b8565486.10af1a86f158715.2387262617218380588@highgo.ca
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Rather than specifying a validity of 10 000 days into the future
during test certificate generation, this hardcodes the notBefore
and notAfter attributes to known values. This will allow writing
tests on the validity of the certificates without knowing when a
specific certificate was regenerated.
This is done as a prerequisite for an upcoming patch which adds
notBefore and notAfter to pg_stat_ssl and sslinfo.
Discussion: https://postgr.es/m/EE288A58-947E-479A-9D99-C46C273D7A23@yesql.se
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With the addition of INHERIT and SET options for role grants,
the historical display of role memberships in \du/\dg is woefully
inadequate. Besides those options, there are pre-existing
shortcomings that you can't see the ADMIN option nor the grantor.
To fix this, remove the "Member of" column from \du/\dg altogether
(making that output usefully narrower), and invent a new meta-command
"\drg" that is specifically for displaying role memberships. It
shows one row for each role granted to the selected role(s), with
the grant options and grantor.
We would not normally back-patch such a feature addition post
feature freeze, but in this case the change is mainly driven by
v16 changes in the server, so it seems appropriate to include it
in v16.
Pavel Luzanov, with bikeshedding and review from a lot of people,
but particularly David Johnston
Discussion: https://postgr.es/m/b9be2d0e-a9bc-0a30-492f-a4f68e4f7740@postgrespro.ru
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If the plan itself is parallel-safe, and the initPlans are too,
there's no reason anymore to prevent the plan from being marked
parallel-safe. That restriction (dating to commit ab77a5a45) was
really a special case of the fact that we couldn't transmit subplans
to parallel workers at all. We fixed that in commit 5e6d8d2bb and
follow-ons, but this case never got addressed.
We still forbid attaching initPlans to a Gather node that's
inserted pursuant to debug_parallel_query = regress. That's because,
when we hide the Gather from EXPLAIN output, we'd hide the initPlans
too, causing cosmetic regression diffs. It seems inadvisable to
kluge EXPLAIN to the extent required to make the output look the
same, so just don't do it in that case.
Along the way, this also takes care of some sloppiness about updating
path costs to match when we move initplans from one place to another
during createplan.c and setrefs.c. Since all the planning decisions
are already made by that point, this is just cosmetic; but it seems
good to keep EXPLAIN output consistent with where the initplans are.
The diff in query_planner() might be worth remarking on. I found that
one because after fixing things to allow parallel-safe initplans, one
partition_prune test case changed plans (as shown in the patch) ---
but only when debug_parallel_query was active. The reason proved to
be that we only bothered to mark Result nodes as potentially
parallel-safe when debug_parallel_query is on. This neglects the fact
that parallel-safety may be of interest for a sub-query even though
the Result itself doesn't parallelize.
Discussion: https://postgr.es/m/1129530.1681317832@sss.pgh.pa.us
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Commit 89e46da5e5 allowed using BTREE indexes that are neither
PRIMARY KEY nor REPLICA IDENTITY on the subscriber during apply of
update/delete. This patch extends that functionality to also allow HASH
indexes.
We explored supporting other index access methods as well but they don't
have a fixed strategy for equality operation which is required by the
current infrastructure in logical replication to scan the indexes.
Author: Kuroda Hayato
Reviewed-by: Peter Smith, Onder Kalaci, Amit Kapila
Discussion: https://postgr.es/m/TYAPR01MB58669D7414E59664E17A5827F522A@TYAPR01MB5866.jpnprd01.prod.outlook.com
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indisvalid is switched to true for partitioned indexes when all its
partitions have valid indexes when attaching a new partition, up to the
top-most parent if all its leaves are themselves valid when dealing with
multiple layers of partitions.
The copy of the tuple from pg_index used to switch indisvalid to true
came from the relation cache, which is incorrect. Particularly, in the
case reported by Shruthi Gowda, executing a series of commands in a
single transaction would cause the validation of partitioned indexes to
use an incorrect version of a pg_index tuple, as indexes are reloaded
after an invalidation request with RelationReloadIndexInfo(), a much
faster version than a full index cache rebuild. In this case, the
limited information updated in the cache leads to an incorrect version
of the tuple used. One of the symptoms reported was the following
error, with a replica identity update, for instance:
"ERROR: attempted to update invisible tuple"
This is incorrect since 8b08f7d, so backpatch all the way down.
Reported-by: Shruthi Gowda
Author: Michael Paquier
Reviewed-by: Shruthi Gowda, Dilip Kumar
Discussion: https://postgr.es/m/CAASxf_PBcxax0wW-3gErUyftZ0XrCs3Lrpuhq4-Z3Fak1DoW7Q@mail.gmail.com
Backpatch-through: 11
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Until now, when DROP DATABASE got interrupted in the wrong moment, the removal
of the pg_database row would also roll back, even though some irreversible
steps have already been taken. E.g. DropDatabaseBuffers() might have thrown
out dirty buffers, or files could have been unlinked. But we continued to
allow connections to such a corrupted database.
To fix this, mark databases invalid with an in-place update, just before
starting to perform irreversible steps. As we can't add a new column in the
back branches, we use pg_database.datconnlimit = -2 for this purpose.
An invalid database cannot be connected to anymore, but can still be
dropped.
Unfortunately we can't easily add output to psql's \l to indicate that some
database is invalid, it doesn't fit in any of the existing columns.
Add tests verifying that a interrupted DROP DATABASE is handled correctly in
the backend and in various tools.
Reported-by: Evgeny Morozov <postgresql3@realityexists.net>
Author: Andres Freund <andres@anarazel.de>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Thomas Munro <thomas.munro@gmail.com>
Discussion: https://postgr.es/m/20230509004637.cgvmfwrbht7xm7p6@awork3.anarazel.de
Discussion: https://postgr.es/m/20230314174521.74jl6ffqsee5mtug@awork3.anarazel.de
Backpatch: 11-, bug present in all supported versions
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This is cosmetic, so no backpatch.
Discussion: https://postgr.es/m/20230405233356.qs4w4jtfc3kq4obl@alvherre.pgsql
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
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Previously we only allowed unique B-tree constraints on partitions
(and only if the constraint included all the partition keys). But we
could allow exclusion constraints with the same restriction. We also
require that those columns be compared for equality, not something
like &&.
Author: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Ronan Dunklau <ronan.dunklau@aiven.io>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://www.postgresql.org/message-id/flat/ec8b1d9b-502e-d1f8-e909-1bf9dffe6fa5@illuminatedcomputing.com
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This commit adds two columns: indexes_total and indexes_processed, to
pg_stat_progress_vacuum system view to show the index vacuum
progress. These numbers are reported in the "vacuuming indexes" and
"cleaning up indexes" phases.
This uses the new parallel message type for progress reporting added
by be06506e7.
Bump catversion because this changes the definition of
pg_stat_progress_vacuum.
Author: Sami Imseih
Reviewed by: Masahiko Sawada, Michael Paquier, Nathan Bossart, Andres Freund
Discussion: https://www.postgresql.org/message-id/flat/5478DFCD-2333-401A-B2F0-0D186AB09228@amazon.com
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As coded, the code would use as a base comparison the namespace OID from
the first object scanned in pg_depend when switching its namespace
dependency entry to the new one, and use it as a base of comparison for
any follow-up checks. It would also be used as the old namespace OID to
switch *from* for the extension's pg_depend entry. Hence, if the first
object scanned has a namespace different than the one stored in the
extension, we would finish by:
- Not checking that the extension objects map with the extension's
schema.
- Not switching the extension -> namespace dependency entry to the new
namespace provided by the user, making ALTER EXTENSION ineffective.
This issue exists since this command has been introduced in d9572c4 for
relocatable extension, so backpatch all the way down to 11. The test
case has been provided by Heikki, that I have tweaked a bit to show the
effects on pg_depend for the extension.
Reported-by: Heikki Linnakangas
Author: Michael Paquier, Heikki Linnakangas
Discussion: https://postgr.es/m/20eea594-a05b-4c31-491b-007b6fceef28@iki.fi
Backpatch-through: 11
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Use of uninitialized value $content in concatenation (.) or string
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Makefile does not specify ENCODING, meson.build should not,
either. Oversight in commit 877bf52cff.
Discussion: https://postgr.es/m/ZKYpvvNQdbQuRDGx@paquier.xyz
Reported-by: Michael Paquier
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This reverts the following commits: 4dbdb82513, c2122aae63,
5b1a879943, 9e1e9d6560, ff9618e82a, 60684dd834, 4441fc704d,
and b5d6382496. A role with the MAINTAIN privilege may be able to
use search_path tricks to escalate privileges to the table owner.
Unfortunately, it is too late in the v16 development cycle to apply
the proposed fix, i.e., restricting search_path when running
maintenance commands.
Bumps catversion.
Reviewed-by: Jeff Davis
Discussion: https://postgr.es/m/E1q7j7Y-000z1H-Hr%40gemulon.postgresql.org
Backpatch-through: 16
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The restrictedToken handle was set but never read, so remove the
variable and change to a boolean style check to match other uses
of CreateRestrictedProcess().
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/62A63C81-3893-4E3F-A34E-2081DF67074E@yesql.se
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