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When restarting the cluster fails the code introduced in 33774978c78
printed the full log contents to aid debugging. For cases when the
logfile is large this adds unnecessary overhead. Reduce to printing
the logfile path instead.
Reported-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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This one-liner makes the TAP portion of "make check-world" 7% faster on
a non-Windows machine.
Discussion: https://postgr.es/m/[email protected]
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This commit does two things:
1) Maintains inactive_since for sync slots whenever the slot is released
just like any other regular slot.
2) Ensures the value is set to the current timestamp during the promotion
of standby to help correctly interpret the time after promotion. We don't
want the slots to appear inactive for a long time after promotion if they
haven't been synchronized recently. This would also avoid the invalidation
of such slots immediately after promotion if tomorrow we have a feature
that invalidates slots based on their inactivity time. Whoever acquires
the slot i.e. makes the slot active will reset it to NULL.
Author: Bharath Rupireddy
Reviewed-by: Bertrand Drouvot, Amit Kapila, Shveta Malik, Masahiko Sawada
Discussion: https://postgr.es/m/CAA4eK1KrPGwfZV9LYGidjxHeW+rxJ=E2ThjXvwRGLO=iLNuo=Q@mail.gmail.com
Discussion: https://postgr.es/m/CALj2ACW4aUe-_uFQOjdWCEN-xXoLGhmvRFnL8SNw_TZ5nJe+aw@mail.gmail.com
Discussion: https://postgr.es/m/CA+Tgmob_Ta-t2ty8QrKHBGnNLrf4ZYcwhGHGFsuUoFrAEDw4sA@mail.gmail.com
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warnings
This checks that certain I/O-related Perl functions properly check
their return value. Some parts of the PostgreSQL code had been a bit
sloppy about that. The new perlcritic warnings are fixed here. I
didn't design any beautiful error messages, mostly just used "or die
$!", which mostly matches existing code, and also this is
developer-level code, so having the system error plus source code
reference should be ok.
Initially, we only activate this check for a subset of what the
perlcritic check would warn about. The effective list is
chmod flock open read rename seek symlink system
The initial set of functions is picked because most existing code
already checked the return value of those, so any omissions are
probably unintended, or because it seems important for test
correctness.
The actual perlcritic configuration is written as an exclude list.
That seems better so that we are clear on what we are currently not
checking. Maybe future patches want to investigate checking some of
the other functions. (In principle, we might eventually want to check
all of them, but since this is test and build support code, not
production code, there are probably some reasonable compromises to be
made.)
Reviewed-by: Daniel Gustafsson <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/88b7d4f2-46d9-4cc7-b1f7-613c90f9a76a%40eisentraut.org
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This routine has been removed in 39969e2a1e4d with the exclusive backup
mode but there were still references to it.
Issue noticed while working on 071e3ad59d6f.
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Roles with MAINTAIN on a relation may run VACUUM, ANALYZE, REINDEX,
REFRESH MATERIALIZE VIEW, CLUSTER, and LOCK TABLE on the relation.
Roles with privileges of pg_maintain may run those same commands on
all relations.
This was previously committed for v16, but it was reverted in
commit 151c22deee due to concerns about search_path tricks that
could be used to escalate privileges to the table owner. Commits
2af07e2f74, 59825d1639, and c7ea3f4229 resolved these concerns by
restricting search_path when running maintenance commands.
Bumps catversion.
Reviewed-by: Jeff Davis
Discussion: https://postgr.es/m/20240305161235.GA3478007%40nathanxps13
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In be7800674 and followups, we failed to notice that there was
already a better way to do it: instead of using DROP DATABASE
IF EXISTS, we can check the list of existing DBs. Also, there
seems no reason not to merge this into the pre-existing code
for getting rid of unwanted module databases.
Discussion: https://postgr.es/m/[email protected]
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Apparently, buildfarm animal crake has the adminpack regression DB
named as "regression_adminpack" in some branches. Not clear why
I didn't see that when testing here. In any case, drop that too.
Discussion: https://postgr.es/m/[email protected]
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The DROP DATABASE step needs an "if exists" option, as the oldest
branches we test don't have the contrib_regression_adminpack DB.
Also remove unnecessary command to drop the extension from the
regression database; no version has installed it there during
buildfarm testing.
Discussion: https://postgr.es/m/[email protected]
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The fix in be78006741 only accounted for supported versions of postgres
but the crossversion test use 11 as the source version, which is an EOL
version. Fix by removing the lower bound in the adminpack cleanup.
Discussion: https://postgr.es/m/[email protected]
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Commit cc09e6549f which removed the adminpack extension failed to
instrument the crossversion pg_upgrade test to drop the extension
before attempting an upgrade to v17.
Discussion: https://postgr.es/m/[email protected]
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Per a demand from the author and the reviewer of this commit, this adds
to Cluster.pm a helper routine that can be used to monitor when a
process reaches a wanted wait event. This can be used in combination
with the module injection_points for the "wait" callback, though it is
not limited to it as this monitors pg_stat_activity for a wait_event and
a backend_type.
Author: Bertrand Drouvot
Reviewed-by: Andrey Borodin
Discussion: https://postgr.es/m/[email protected]
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Removing the get_columns_length() function from regress.so
means we have to drop it when testing upgrades from versions
that had it. Per buildfarm.
Discussion: https://postgr.es/m/[email protected]
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This option is useful to bypass the default behavior of init() which
would create the data folder of a new cluster by copying it from a
template previously initdb'd, if any. Copying the data folder is much
cheaper than running initdb, but some tests may want to force that. For
example, one scenario of pg_combinebackup updated in this commit needs a
different system ID for two nodes.
Previously, this could only be achieved by unsetting
$ENV{'INITDB_TEMPLATE'}, which could become a problem in complex node
setups by making tests less efficient.
Author: Amul Sul
Reviewed-by: Robert Haas, Michael Paquier
Discussion: https://postgr.es/m/[email protected]
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Before the previous commit, the test could hang until
LOG_SNAPSHOT_INTERVAL_MS (15s), until checkpoint_timeout (300s), or
indefinitely. An indefinite hang was awfully improbable. It entailed
the test reaching checkpoint_timeout before the
DecodingContextFindStartpoint() of a CREATE SUBSCRIPTION, yet after the
preceding WAL record. Back-patch to v16, which introduced the test.
Bertrand Drouvot, reported by Noah Misch.
Discussion: https://postgr.es/m/[email protected]
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Setting the environment variable PG_TEST_INITDB_EXTRA_OPTS passes
extra options to initdb run by pg_regress or
PostgreSQL::Test::Cluster's init.
This can be useful for a wide variety of uses, like running all tests
with checksums enabled, or with JIT enabled, or with different GUC
settings, or with different locale settings. (Not all tests are going
to pass with arbitrary options, but it is useful to run this against
specific test suites.)
Reviewed-by: Ian Lawrence Barwick <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/d4d2ad9f-1c1d-47a1-bb4d-c10a747d4f15%40eisentraut.org
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Due to the commit c5385929 which made all Perl warnings to fatal, use
of PostgreSQL::Test::Cluster:psql() and safe_psql() with timeout
started to fail with the following error:
Use of uninitialized value $ret in bitwise and (&) at
..src/test/perl/PostgreSQL/Test/Cluster.pm line 2015.
Fix that by placing $ret conversion code in psql() in an if (defined
$ret) block.
With this change, the behavior of psql() becomes same as before, that
is, the whole function returns undef on timeout, which is usefully
different from returning 0.
Author: Bharath Rupireddy <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
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Reported-by: Michael Paquier
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 12
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There are a lot of Perl scripts in the tree, mostly code generation
and TAP tests. Occasionally, these scripts produce warnings. These
are probably always mistakes on the developer side (true positives).
Typical examples are warnings from genbki.pl or related when you make
a mess in the catalog files during development, or warnings from tests
when they massage a config file that looks different on different
hosts, or mistakes during merges (e.g., duplicate subroutine
definitions), or just mistakes that weren't noticed because there is a
lot of output in a verbose build.
This changes all warnings into fatal errors, by replacing
use warnings;
by
use warnings FATAL => 'all';
in all Perl files.
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
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Commit 664d75753 pulled 010_tab_completion.pl's infrastructure for
invoking an interactive psql session out into a generally-useful test
function, but it didn't move enough stuff. We need to set up various
environment variables that readline will look at, both to ensure
stability of test results and to prevent test actions from cluttering
the calling user's ~/.psql_history. Expecting calling scripts to
remember to do that is too failure-prone: the other existing caller
001_password.pl did not do it. Hence, remove those initialization
steps from 010_tab_completion.pl and put them into interactive_psql().
Since interactive_psql was already making a local ENV hash, this has
no effect on calling scripts.
Discussion: https://postgr.es/m/[email protected]
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This is a function that makes a node jump by N WAL segments, which is
something a couple of tests have been relying on for some cases related
to streaming, replication slot limits and logical decoding on standbys.
Hence, this centralizes the logic, while making it cheaper by relying on
pg_logical_emit_message() to emit WAL records before switching to a new
segment.
Author: Bharath Rupireddy
Reviewed-by: Kyotaro Horiguchi, Euler Taveira
Discussion: https://postgr.es/m/CALj2ACU3R8QFCvDewHCMKjgb2w_-CMCyd6DAK=Jb-af14da5eg@mail.gmail.com
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To take an incremental backup, you use the new replication command
UPLOAD_MANIFEST to upload the manifest for the prior backup. This
prior backup could either be a full backup or another incremental
backup. You then use BASE_BACKUP with the INCREMENTAL option to take
the backup. pg_basebackup now has an --incremental=PATH_TO_MANIFEST
option to trigger this behavior.
An incremental backup is like a regular full backup except that
some relation files are replaced with files with names like
INCREMENTAL.${ORIGINAL_NAME}, and the backup_label file contains
additional lines identifying it as an incremental backup. The new
pg_combinebackup tool can be used to reconstruct a data directory
from a full backup and a series of incremental backups.
Patch by me. Reviewed by Matthias van de Meent, Dilip Kumar, Jakub
Wartak, Peter Eisentraut, and Álvaro Herrera. Thanks especially to
Jakub for incredibly helpful and extensive testing.
Discussion: http://postgr.es/m/CA+TgmoYOYZfMCyOXFyC-P+-mdrZqm5pP2N7S-r0z3_402h9rsA@mail.gmail.com
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Previously, a background psql session uses the default timeout and it
cannot be overridden. This change adds a new option to set the timeout
during start.
There are no users of this new option. It is needed for an upcoming
patch adding tests for XID wraparound.
Reviewed-by: Daniel Gustafsson, Noah Misch
Discussion: https://postgr.es/m/C9CF2F76-0D81-4C9D-9832-202BE8517056%40yesql.se
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Backpatch through 16 where this was introduced by 664d757531e1.
Reviewed-by: Daniel Gustafsson
Backpatch-through: 16
Discussion: http://postgr.es/m/CAD21AoBXMEqDBLoDuAWVWoTLYB4aNsxx4oYNmyJJbhfq_vGQBQ@mail.gmail.com
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The set_query_timer_restart() required an argument to define a value
to query_timer_restart, but none of the existing callers passes an
argument to this function.
This changes the function to set a value without an argument.
Backpatch through 16 where the background psql TAP functions were
refactored by 664d757531e1.
Reviewed-by: Bharath Rupireddy, Tom Lane
Discussion: https://postgr.es/m/CAD21AoA0B6VKe_5A9nZi8i5umwSN-zJJuPVNht9DaOZ9SJumMA@mail.gmail.com
Backpatch-through: 16
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There was some discussion what the line length should be. Most output
currently clearly targets around 80 columns, but the maximum in use
currently is 95, so we set that as the current maximum. This just
ensures that there is some guidance and there are no wild deviations.
based on patch by Atsushi Torikoshi <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/[email protected]
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xl_tot_len comes first in a WAL record. Usually we don't trust it to be
the true length until we've validated the record header. If the record
header was split across two pages, previously we wouldn't do the
validation until after we'd already tried to allocate enough memory to
hold the record, which was bad because it might actually be garbage
bytes from a recycled WAL file, so we could try to allocate a lot of
memory. Release 15 made it worse.
Since 70b4f82a4b5, we'd at least generate an end-of-WAL condition if the
garbage 4 byte value happened to be > 1GB, but we'd still try to
allocate up to 1GB of memory bogusly otherwise. That was an
improvement, but unfortunately release 15 tries to allocate another
object before that, so you could get a FATAL error and recovery could
fail.
We can fix both variants of the problem more fundamentally using
pre-existing page-level validation, if we just re-order some logic.
The new order of operations in the split-header case defers all memory
allocation based on xl_tot_len until we've read the following page. At
that point we know that its first few bytes are not recycled data, by
checking its xlp_pageaddr, and that its xlp_rem_len agrees with
xl_tot_len on the preceding page. That is strong evidence that
xl_tot_len was truly the start of a record that was logged.
This problem was most likely to occur on a standby, because
walreceiver.c recycles WAL files without zeroing out trailing regions of
each page. We could fix that too, but it wouldn't protect us from rare
crash scenarios where the trailing zeroes don't make it to disk.
With reliable xl_tot_len validation in place, the ancient policy of
considering malloc failure to indicate corruption at end-of-WAL seems
quite surprising, but changing that is left for later work.
Also included is a new TAP test to exercise various cases of end-of-WAL
detection by writing contrived data into the WAL from Perl.
Back-patch to 12. We decided not to put this change into the final
release of 11.
Author: Thomas Munro <[email protected]>
Author: Michael Paquier <[email protected]>
Reported-by: Alexander Lakhin <[email protected]>
Reviewed-by: Noah Misch <[email protected]> (the idea, not the code)
Reviewed-by: Michael Paquier <[email protected]>
Reviewed-by: Sergei Kornilov <[email protected]>
Reviewed-by: Alexander Lakhin <[email protected]>
Discussion: https://postgr.es/m/17928-aa92416a70ff44a2%40postgresql.org
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The SSL tests for pg_ctl restart with an incorrect key passphrase used
the internal _update_pid method to set the pidfile after running pg_ctl
manually instead of using the supplied ->restart method. This refactors
the ->restart method to accept a fail_ok parameter like how ->start and
->stop does, and changes the SSL tests to use this instead. This removes
the need to call internal test module functions.
Reviewed-by: Melih Mutlu <[email protected]>
Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Commit 252dcb32 used cp -a, but apparently Solaris doesn't like that. Use cp
-RPp instead.
Author: Thomas Munro <[email protected]>
Reviewed-by: Daniel Gustafsson <[email protected]>
Discussion: https://postgr.es/m/CA+hUKGL10AoQVMMqgOJ8CTjoz9MLidD8ik2e8PibzLNMz0+aRg@mail.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 <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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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 <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
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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 <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Use of uninitialized value $content in concatenation (.) or string
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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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When set, this environment variable was only effective for data
directories but not for all the other temporary files created by
PostgreSQL::Test::Utils. Keeping the temporary files after a successful
run can be useful for debugging purposes.
The documentation is updated to reflect the new behavior, with contents
available in doc/ since v16 and in src/test/perl/README since v15.
Author: Jacob Champion
Reviewed-by: Daniel Gustafsson
Discussion: https://postgr.es/m/CAAWbhmgHtDH1SGZ+Fw05CsXtE0mzTmjbuUxLB9mY9iPKgM6cUw@mail.gmail.com
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 11
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The same routine to check if a specific pattern can be found in the
server logs was copied over four different test scripts. This refactors
the whole to use a single routine located in PostgreSQL::Test::Cluster,
named log_contains, to grab the contents of the server logs and check
for a specific pattern.
On HEAD, the code previously used assumed that slurp_file() could not
handle an undefined offset, setting it to zero, but slurp_file() does
do an extra fseek() before retrieving the log contents only if an offset
is defined. In two places, the test was retrieving the full log
contents with slurp_file() after calling substr() to apply an offset,
ignoring that slurp_file() would be able to handle that.
Backpatch all the way down to ease the introduction of new tests that
could rely on the new routine.
Author: Vignesh C
Reviewed-by: Andrew Dunstan, Dagfinn Ilmari Mannsåker, Michael Paquier
Discussion: https://postgr.es/m/CALDaNm0YSiLpjCmajwLfidQrFOrLNKPQir7s__PeVvh9U3uoTQ@mail.gmail.com
Backpatch-through: 11
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This commit refactors a bit the code in charge of checking for log
patterns when connections fail or succeed, by moving the log pattern
checks into their own routine, for clarity. This has come up as
something to improve while discussing the refactoring of find_in_log().
Backpatch down to 14 where these routines are used, to ease the
introduction of new tests that could rely on them.
Author: Vignesh C, Michael Paquier
Discussion: https://postgr.es/m/CALDaNm0YSiLpjCmajwLfidQrFOrLNKPQir7s__PeVvh9U3uoTQ@mail.gmail.com
Backpatch-through: 14
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That's how other boolean options are handled, so do likewise.
The previous coding with "enable" and "disable" was seemingly
modeled on gssencmode, but that's a three-way flag.
While at it, add PGGSSDELEGATION to the set of environment
variables cleared by pg_regress and Utils.pm.
Abhijit Menon-Sen, per gripe from Alvaro Herrera
Discussion: https://postgr.es/m/[email protected]
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Run pgindent, pgperltidy, and reformat-dat-files.
This set of diffs is a bit larger than typical. We've updated to
pg_bsd_indent 2.1.2, which properly indents variable declarations that
have multi-line initialization expressions (the continuation lines are
now indented one tab stop). We've also updated to perltidy version
20230309 and changed some of its settings, which reduces its desire to
add whitespace to lines to make assignments etc. line up. Going
forward, that should make for fewer random-seeming changes to existing
code.
Discussion: https://postgr.es/m/[email protected]
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Author: Bertrand Drouvot
Reviewed-by: Vignesh C, Alvaro Herrera, Amit Kapila
Discussion: https://postgr.es/m/[email protected]
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Utils.pm has a BEGIN block that editorializes on the locale-related
environment variables, primarily in order to stabilize the behavior
of child programs. It turns out that if the calling test script
has already done "use locale", this fails to affect the behavior
of Perl itself, causing locale behavior to be different between
Perl and child programs. That breaks commit cd82e5c79's attempt
to deal with locale-specific behavior in psql.
To fix, we just need to call setlocale() to redo the calculation
of locale.
Per report from Aleksander Alekseev. No back-patch for now, since
there are no locale-dependent TAP tests in prior branches, and
I'm not yet convinced that this won't have side-effects of its own.
Discussion: https://postgr.es/m/CAJ7c6TO9KpYYxoVVseWEQB5KtjWDkt8NfyAeKPcHoe2Jq+ykpw@mail.gmail.com
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This fixes many spelling mistakes in comments, but a few references to
invalid parameter names, function names and option names too in comments
and also some in string constants
Also, fix an #undef that was undefining the incorrect definition
Author: Alexander Lakhin
Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/[email protected]
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This reverts commit 3d03b24c3 (Revert Add support for Kerberos
credential delegation) which was committed on the grounds of concern
about portability, but on further review and discussion, it's clear that
we are better off explicitly requiring MIT Kerberos as that appears to
be the only GSSAPI library currently that's under proper maintenance
and ongoing development. The API used for storing credentials was added
to MIT Kerberos over a decade ago while for the other libraries which
appear to be mainly based on Heimdal, which exists explicitly to be a
re-implementation of MIT Kerberos, the API never made it to a released
version (even though it was added to the Heimdal git repo over 5 years
ago..).
This post-feature-freeze change was approved by the RMT.
Discussion: https://postgr.es/m/ZDDO6jaESKaBgej0%40tamriel.snowman.net
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This reverts commit 3d4fa227bce4294ce1cc214b4a9d3b7caa3f0454.
Per discussion and buildfarm, this depends on APIs that seem to not
be available on at least one platform (NetBSD). Should be certainly
possible to rework to be optional on that platform if necessary but bit
late for that at this point.
Discussion: https://postgr.es/m/[email protected]
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Author: "Drouvot, Bertrand" <[email protected]>
Author: Amit Khandekar <[email protected]>
Author: Craig Ringer <[email protected]> (in an older version)
Author: Andres Freund <[email protected]>
Reviewed-by: "Drouvot, Bertrand" <[email protected]>
Reviewed-by: Andres Freund <[email protected]>
Reviewed-by: Robert Haas <[email protected]>
Reviewed-by: Amit Kapila <[email protected]>
Reviewed-by: Fabrízio de Royes Mello <[email protected]>
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Support GSSAPI/Kerberos credentials being delegated to the server by a
client. With this, a user authenticating to PostgreSQL using Kerberos
(GSSAPI) credentials can choose to delegate their credentials to the
PostgreSQL server (which can choose to accept them, or not), allowing
the server to then use those delegated credentials to connect to
another service, such as with postgres_fdw or dblink or theoretically
any other service which is able to be authenticated using Kerberos.
Both postgres_fdw and dblink are changed to allow non-superuser
password-less connections but only when GSSAPI credentials have been
delegated to the server by the client and GSSAPI is used to
authenticate to the remote system.
Authors: Stephen Frost, Peifeng Qiu
Reviewed-By: David Christensen
Discussion: https://postgr.es/m/CO1PR05MB8023CC2CB575E0FAAD7DF4F8A8E29@CO1PR05MB8023.namprd05.prod.outlook.com
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This breaks out the background and interactive psql functionality into a
new class, PostgreSQL::Test::BackgroundPsql. Sessions are still initiated
via PostgreSQL::Test::Cluster, but once started they can be manipulated by
the new helper functions which intend to make querying easier. A sample
session for a command which can be expected to finish at a later time can
be seen below.
my $session = $node->background_psql('postgres');
$bsession->query_until(qr/start/, q(
\echo start
CREATE INDEX CONCURRENTLY idx ON t(a);
));
$bsession->quit;
Patch by Andres Freund with some additional hacking by me.
Author: Andres Freund <[email protected]>
Reviewed-by: Andrew Dunstan <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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This adds support for load balancing connections with libpq using a
connection parameter: load_balance_hosts=<string>. When setting the
param to random, hosts and addresses will be connected to in random
order. This then results in load balancing across these addresses and
hosts when multiple clients or frequent connection setups are used.
The randomization employed performs two levels of shuffling:
1. The given hosts are randomly shuffled, before resolving them
one-by-one.
2. Once a host its addresses get resolved, the returned addresses
are shuffled, before trying to connect to them one-by-one.
Author: Jelte Fennema <[email protected]>
Reviewed-by: Aleksander Alekseev <[email protected]>
Reviewed-by: Michael Banck <[email protected]>
Reviewed-by: Andrey Borodin <[email protected]>
Discussion: https://postgr.es/m/PR3PR83MB04768E2FF04818EEB2179949F7A69@PR3PR83MB0476.EURPRD83.prod.outlook.
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This simplifies a few lines of Perl test code a bit.
Author: Bertrand Drouvot
Discussion: https://postgr.es/m/[email protected]
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