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Instead of having checks in AddRoleMems() and DelRoleMems(), have
the callers perform checks where it's required. In some cases it
isn't, either because the caller has already performed a check for
the same condition, or because the check couldn't possibly fail.
The "Skip permission check if nothing to do" check in each of
AddRoleMems() and DelRoleMems() is pointless. Some call sites
can't pass an empty list. Others can, but in those cases, the role
being modified is one that the current user has just created.
Therefore, they must have permission to modify it, and so no
permission check is required at all.
This patch is intended to have no user-visible consequences. It is
intended to simplify future work in this area.
Patch by me, reviewed by Mark Dilger.
Discussion: http://postgr.es/m/CA+TgmobFzTLkLwOquFrAcdsWBsOWDr-_H-jw+qBvfx-wSzMwDA@mail.gmail.com
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We were identifying the updatable generated columns of inheritance
children by transposing the calculation made for their parent.
However, there's nothing that says a traditional-inheritance child
can't have generated columns that aren't there in its parent, or that
have different dependencies than are in the parent's expression.
(At present it seems that we don't enforce that for partitioning
either, which is likely wrong to some degree or other; but the case
clearly needs to be handled with traditional inheritance.)
Hence, drop the very-klugy-anyway "extraUpdatedCols" RTE field
in favor of identifying which generated columns depend on updated
columns during executor startup. In HEAD we can remove
extraUpdatedCols altogether; in back branches, it's still there but
always empty. Another difference between the HEAD and back-branch
versions of this patch is that in HEAD we can add the new bitmap field
to ResultRelInfo, but that would cause an ABI break in back branches.
Like 4b3e37993, add a List field at the end of struct EState instead.
Back-patch to v13. The bogus calculation is also being made in v12,
but it doesn't have the same visible effect because we don't use it
to decide which generated columns to recalculate; as a consequence of
which the patch doesn't apply easily. I think that there might still
be a demonstrable bug associated with trigger firing conditions, but
that's such a weird corner-case usage that I'm content to leave it
unfixed in v12.
Amit Langote and Tom Lane
Discussion: https://postgr.es/m/CA+HiwqFshLKNvQUd1DgwJ-7tsTp=dwv7KZqXC4j2wYBV1aCDUA@mail.gmail.com
Discussion: https://postgr.es/m/2793383.1672944799@sss.pgh.pa.us
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They were accidentally copied from test_oat_hooks.
Reported-by: Justin Pryzby
Discussion: https://postgr.es/m/20230102154240.GL1153%40telsasoft.com
Reviewed-by: Pavel Borisov
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Do the same as 3f0e786ccbf5 for test_pg_db_role_setting.
Discussion: https://postgr.es/m/20221227065456.GU1153@telsasoft.com
Author: Pavel Borisov
Reviewed-by: Justin Pryzby, Tom Lane
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This fixes a couple of unused variable warnings that could be seen when
compiling with MEMORY_CONTEXT_CHECKING but not USE_ASSERT_CHECKING.
Defining MEMORY_CONTEXT_CHECKING without asserts is a little unusual,
however, we shouldn't be producing any warnings from such a build.
Author: Richard Guo
Discussion: https://postgr.es/m/CAMbWs4_D-vgLEh7eO47p=73u1jWO78NWf6Qfv1FndY1kG-Q-jA@mail.gmail.com
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We cannot rely on TransactionIdDidAbort here, since in general it may
report transactions that were in-progress at the time of an earlier hard
crash as not aborted, effectively behaving as if they were still in
progress even after crash recovery completes. Go back to defensively
verifying that xmax didn't commit instead.
Oversight in commit 79d4bf4e.
Author: Peter Geoghegan <pg@bowt.ie>
Reported-By: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/20230104035636.hy5djyr2as4gbc4q@awork3.anarazel.de
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Commit 4f627f89 switched SLRU truncation for multixacts back to being a
task performed during VACUUM, but missed some comments that continued to
reference truncation happening as part of checkpointing. Update those
comments now.
Also update comments that became obsolete when commit c3ffa731 changed
the way that vacuum_multixact_freeze_min_age is applied by VACUUM as it
computes its MultiXactCutoff cutoff (which is used by VACUUM to decide
what to freeze). Explain the same issues by referencing how OldestMxact
is the latest valid value that relminmxid can ever be advanced to at the
end of a VACUUM (following the work in commit 0b018fab).
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Combine multiple LOCK TABLE commands to reduce the number of
round trips to the server. This is particularly helpful when
dumping from a remote server, but it seems useful even without
that. In particular, shortening the time from seeing a table
in pg_class to acquiring lock on it reduces the window for
trouble from concurrent DDL.
Aleksander Alekseev, reviewed by FabrÃzio de Royes Mello,
Gilles Darold, and Andres Freund
Discussion: https://postgr.es/m/CAJ7c6TO4z1+OBa-R+fC8FnaUgbEWJUf2Kq=nRngTW5EXtKru2g@mail.gmail.com
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Author: Richard Guo
Discussion: https://postgr.es/m/CAMbWs483CYjHoLH32_hd3Yq1NJfravNdL2zy7+e7pwvFPJF1RQ@mail.gmail.com
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This brings dbname strings in line with namespace and relation name
strings.
Author: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAH2-WzkQ1TKU-DdNvnGeL870di3+CU1UTo-7nw7xFDpVE-XGjA@mail.gmail.com
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pg_xact lookups are relatively expensive. Move the xmin/xmax commit
status checks from the point that freeze plans are prepared to the point
that they're actually executed. Otherwise we'll repeat many commit
status checks whenever multiple successive VACUUM operations scan the
same pages and decide against freezing each time, which is a waste of
cycles.
Oversight in commit 1de58df4, which added page-level freezing.
Author: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAH2-WzkZpe4K6qMfEt8H4qYJCKc2R7TPvKsBva7jc9w7iGXQSw@mail.gmail.com
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Improve comments added by commit 1de58df4 which describe the
lazy_scan_prune "freeze the page" path. These newly revised comments
are based on suggestions from Jeff Davis.
In passing, remove nearby visibility_cutoff_xid comments left over from
commit 6daeeb1f.
Author: Peter Geoghegan <pg@bowt.ie>
Reviewed-By: Jeff Davis <pgsql@j-davis.com>
Discussion: https://postgr.es/m/ebc857107fe3edd422ef8a65191ca4a8da568b9b.camel@j-davis.com
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Windows can enumerate the locales that are either installed or
supported by calling EnumSystemLocalesEx(), similar to what is already
done in the READ_LOCALE_A_OUTPUT switch. We can refactor some of the
logic already used in that switch into a new function
create_collation_from_locale().
The enumerated locales have BCP 47 shape, that is with a hyphen
between language and territory, instead of POSIX's underscore. The
created collations will retain the BCP 47 shape, but we will also
create a POSIX alias, so xx-YY will have an xx_YY alias.
A new test collate.windows.win1252 is added that is like
collate.linux.utf8.
Author: Juan Jose Santamaria Flecha <juanjo.santamaria@gmail.com>
Reviewed-by: Dmitry Koval <d.koval@postgrespro.ru>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/0050ec23-34d9-2765-9015-98c04f0e18ac@postgrespro.ru
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While on it, newlines are removed from the end of two elog() strings.
The others are simple grammar mistakes. One comment in pg_upgrade
referred incorrectly to sequences since a7e5457.
Author: Justin Pryzby
Discussion: https://postgr.es/m/20221230231257.GI1153@telsasoft.com
Backpatch-through: 11
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When considering an empty grouping set, we fetched
phasedata->eqfunctions[-1]. Because the eqfunctions array is
palloc'd, that would always be an aset pointer in released versions,
and thus the code accidentally failed to malfunction (since it would
do nothing unless it found a null pointer). Nonetheless this seems
like trouble waiting to happen, so add a check for length == 0.
It's depressing that our valgrind testing did not catch this.
Maybe we should reconsider the choice to not mark that word NOACCESS?
Richard Guo
Discussion: https://postgr.es/m/CAMbWs4-vZuuPOZsKOYnSAaPYGKhmacxhki+vpOKk0O7rymccXQ@mail.gmail.com
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Backpatch-through: 11
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The term "truncation" has been ambiguous since commit 10a8d13823 added
line pointer array truncation during heap pruning. Clear things up by
specifying that we're talking about rel truncation here, to match nearby
comments that apply to tuples with storage.
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Don't allow VACUUM to WAL-log the value FrozenTransactionId as the
snapshotConflictHorizon of freezing or visibility map related WAL
records.
The only special XID value that's an allowable snapshotConflictHorizon
is InvalidTransactionId, which is interpreted as "record definitely
doesn't require a recovery conflict".
Author: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/CAH2-WznuNGSzF8v6OsgjaC5aYsb3cZ6HW6MLm30X0d65cmSH6A@mail.gmail.com
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Author: Melanie Plageman <melanieplageman@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAAKRu_YSOnhKsDyFcqJsKtBSrd32DP-jjXmv7hL0BPD-z0TGXQ@mail.gmail.com
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The float and numeric types accept this variant spelling of
"infinity", so it seems like the datetime types should too.
Vik Fearing, some cosmetic mods by me
Discussion: https://postgr.es/m/d0bef637-2dbd-0a5d-e539-48243b6f6c5e@postgresfriends.org
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A refcursor variable that is bound to a specific query (by declaring
it with "CURSOR FOR") now chooses a portal name in the same way as an
unbound, plain refcursor variable. Its string value starts out as
NULL, and unless that's overridden by manual assignment, it will be
replaced by a unique-within-session portal name during OPEN.
The previous behavior was to initialize such variables to contain
their own name, resulting in that also being the portal name unless
the user overwrote it before OPEN. The trouble with this is that
it causes failures due to conflicting portal names if the same
cursor variable name is used in different functions. It is pretty
non-orthogonal to have bound and unbound refcursor variables behave
differently on this point, too, so let's change it.
This change can cause compatibility problems for applications that
open a bound cursor in a plpgsql function and then use it in the
calling code without explicitly passing back the refcursor value
(portal name). If the calling code simply assumes that the portal
name matches the called function's variable name, it will now fail.
That can be fixed by explicitly assigning a string value to the
refcursor variable before OPEN, e.g.
DECLARE myc CURSOR FOR SELECT ...;
BEGIN
myc := 'myc'; -- add this
OPEN myc;
We have no documentation examples showing the troublesome usage
pattern, so we can hope it's rare in practice.
Patch by me; thanks to Pavel Stehule and Jan Wieck for review.
Discussion: https://postgr.es/m/1465101.1667345983@sss.pgh.pa.us
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Cirrus is about to shut down its macOS-on-Intel support, so it's time to
move our CI testing over to ARM instances. The Homebrew package manager
changed its default installation prefix for the new architecture, so a
couple of tests need tweaks to find binaries.
Back-patch to 15, where in-tree CI began.
Author: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://postgr.es/m/20221122225744.GF11463%40telsasoft.com
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When brin_minmax_multi_union merges summaries, we may end up with just a
single range after merge_overlapping_ranges. The summaries may contain
just one range each, and they may overlap (or be exactly the same).
With a single range there's no distance to calculate, but we happen to
call build_distances anyway - which is fine, we don't calculate the
distance in this case, except that with asserts this failed due to a
check there are at least two ranges.
The assert is unnecessarily strict, so relax it a bit and bail out if
there's just a single range. The relaxed assert would be enough, but
this way we don't allocate unnecessary memory for distance.
Backpatch to 14, where minmax-multi opclasses were introduced.
Reported-by: Jaime Casanova
Backpatch-through: 14
Discussion: https://postgr.es/m/YzVA55qS0hgz8P3r@ahch-to
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f193883 has been incorrectly setting up the precision used in the
timestamp compilations returned by the following functions:
- LOCALTIME
- LOCALTIMESTAMP
- CURRENT_TIME
- CURRENT_TIMESTAMP
Specifying an out-of-range precision for CURRENT_TIMESTAMP and
LOCALTIMESTAMP was raising a WARNING without adjusting the precision,
leading to a subsequent error. LOCALTIME and CURRENT_TIME raised a
WARNING without an error, still the precision given to the internal
routines was not correct, so let's be clean.
Ian has reported the problems in timestamp.c, while I have noticed the
ones in date.c. Regression tests are added for all of them with
precisions high enough to provide coverage for the warnings, something
that went missing up to this commit.
Author: Ian Lawrence Barwick, Michael Paquier
Discussion: https://postgr.es/m/CAB8KJ=jQEnn9sYG+N752spt68wMrhmT-ocHCh4oeNmHF82QMWA@mail.gmail.com
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There is some code that uses this function to assemble some kind of
packed binary layout, which requires a bunch of casts because of this.
Functions taking binary data plus length should take void * instead,
like memcpy() for example.
Discussion: https://www.postgresql.org/message-id/flat/a0086cfc-ff0f-2827-20fe-52b591d2666c%40enterprisedb.com
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For the jsonpath output, we don't need to squeeze out every bit of
performance, so instead use a more robust coding style. There are
similar calls in jsonb.c, which we leave alone here since there is
indeed a performance impact for bulk exports.
Discussion: https://www.postgresql.org/message-id/flat/a0086cfc-ff0f-2827-20fe-52b591d2666c%40enterprisedb.com
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Make data buffer argument to BufFileWrite a const pointer and bubble
this up to various callers and related APIs. This makes the APIs
clearer and more consistent.
Discussion: https://www.postgresql.org/message-id/flat/11dda853-bb5b-59ba-a746-e168b1ce4bdb%40enterprisedb.com
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Some code carefully cast all data buffer arguments for data write and
read function calls to void *, even though the respective arguments
are already void *. Remove this unnecessary clutter.
Discussion: https://www.postgresql.org/message-id/flat/11dda853-bb5b-59ba-a746-e168b1ce4bdb%40enterprisedb.com
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New versions of perl trigger warnings within perl.h with our compiler
flags. At least -Wdeclaration-after-statement, -Wshadow=compatible-local are
known to be problematic.
To avoid these warnings, conditionally use #pragma GCC system_header before
including plperl.h.
Alternatively, we could add the include paths for problematic headers with
-isystem, but that is a larger hammer and is harder to search for.
A more granular alternative would be to use #pragma GCC diagnostic
push/ignored/pop, but gcc warns about unknown warnings being ignored, so every
to-be-ignored-temporarily compiler warning would require its own pg_config.h
symbol and #ifdef.
As the warnings are voluminous, it makes sense to backpatch this change. But
don't do so yet, we first want gather buildfarm coverage - it's e.g. possible
that some compiler claiming to be gcc compatible has issues with the pragma.
Author: Andres Freund <andres@anarazel.de>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: Discussion: https://postgr.es/m/20221228182455.hfdwd22zztvkojy2@awork3.anarazel.de
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Teach VACUUM to decide on whether or not to trigger freezing at the
level of whole heap pages. Individual XIDs and MXIDs fields from tuple
headers now trigger freezing of whole pages, rather than independently
triggering freezing of each individual tuple header field.
Managing the cost of freezing over time now significantly influences
when and how VACUUM freezes. The overall amount of WAL written is the
single most important freezing related cost, in general. Freezing each
page's tuples together in batch allows VACUUM to take full advantage of
the freeze plan WAL deduplication optimization added by commit 9e540599.
Also teach VACUUM to trigger page-level freezing whenever it detects
that heap pruning generated an FPI. We'll have already written a large
amount of WAL just to do that much, so it's very likely a good idea to
get freezing out of the way for the page early. This only happens in
cases where it will directly lead to marking the page all-frozen in the
visibility map.
In most cases "freezing a page" removes all XIDs < OldestXmin, and all
MXIDs < OldestMxact. It doesn't quite work that way in certain rare
cases involving MultiXacts, though. It is convenient to define "freeze
the page" in a way that gives FreezeMultiXactId the leeway to put off
the work of processing an individual tuple's xmax whenever it happens to
be a MultiXactId that would require an expensive second pass to process
aggressively (allocating a new multi is especially worth avoiding here).
FreezeMultiXactId is eager when processing is cheap (as it usually is),
and lazy in the event of an individual multi that happens to require
expensive second pass processing. This avoids regressions related to
processing of multis that page-level freezing might otherwise cause.
Author: Peter Geoghegan <pg@bowt.ie>
Reviewed-By: Jeff Davis <pgsql@j-davis.com>
Reviewed-By: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CAH2-WzkFok_6EAHuK39GaW4FjEFQsY=3J0AAd6FXk93u-Xq3Fg@mail.gmail.com
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This restores some once-intended alphabetical orders and makes the
lists consistent between the different build systems.
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Some compilers complain about sub_rteperminfos not being
initialized, evidently because they don't detect that it
is only used and set if isGeneralSelect is true.
Make it follow the long-established pattern for its
sibling variable sub_rtable.
Per reports from Pavel Stehule and the buildfarm.
Discussion: https://postgr.es/m/CAFj8pRDOvGOi-n616kM0Cc7qSbg_nGoS=-haB+D785sUXADqSg@mail.gmail.com
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The modified error message for regcollationin failure includes
the database encoding, which it should've occurred to me is a
portability hazard for the regression tests. Adjust the test
so the expected output doesn't include that.
In passing, fix a comment typo introduced in b8c0ffbd2.
Per buildfarm.
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Given the soft-input-error feature, we can reduce these functions
to be just thin wrappers around a soft-error call of the
corresponding datatype input function. This means less code and
more certainty that the to_reg* functions match the normal input
behavior.
Notably, it also means that they will accept numeric OID input,
which they didn't before. It's not clear to me if that omission
had more than laziness behind it, but it doesn't seem like
something we need to work hard to preserve.
Discussion: https://postgr.es/m/3910031.1672095600@sss.pgh.pa.us
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This is not really complete, but it catches most cases of practical
interest. The main omissions are:
* regtype, regprocedure, and regoperator parse type names by
calling the main grammar, so any grammar-detected syntax error
will still be a hard error. Also, if one includes a type
modifier in such a type specification, errors detected by the
typmodin function will be hard errors.
* Lookup errors are handled just by passing missing_ok = true
to the relevant catalog lookup function. Because we've used
quite a restrictive definition of "missing_ok", this means that
edge cases such as "the named schema exists, but you lack
USAGE permission on it" are still hard errors.
It would make sense to me to replace most/all missing_ok
parameters with an escontext parameter and then allow these
additional lookup failure cases to be trapped too. But that's
a job for some other day.
Discussion: https://postgr.es/m/3342239.1671988406@sss.pgh.pa.us
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This is slightly tedious because the adjustments cascade through
a couple of levels of subroutines, but it's not very hard.
I chose to avoid changing function signatures more than absolutely
necessary, by passing the escontext pointer in existing structs
where possible.
tsquery's nuisance NOTICEs about empty queries are suppressed in
soft-error mode, since they're not errors and we surely don't want
them to be shown to the user anyway. Maybe that whole behavior
should be reconsidered.
Discussion: https://postgr.es/m/3824377.1672076822@sss.pgh.pa.us
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Historically these input functions just called strtoul or strtoull
and returned the result, with no error detection whatever. Upgrade
them to reject garbage input and out-of-range values, similarly to
our other numeric input routines.
To share the code for this with type oid, adjust the existing
"oidin_subr" to be agnostic about the SQL name of the type it is
handling, and move it to numutils.c; then clone it for 64-bit types.
Because the xid types previously accepted hex and octal input by
reason of calling strtoul[l] with third argument zero, I made the
common subroutine do that too, with the consequence that type oid
now also accepts hex and octal input. In view of 6fcda9aba, that
seems like a good thing.
While at it, simplify the existing over-complicated handling of
syntax errors from strtoul: we only need one ereturn not three.
Discussion: https://postgr.es/m/3526121.1672000729@sss.pgh.pa.us
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When VACUUM determines that an existing MultiXact should use a freeze
plan that sets xmax to InvalidTransactionId, the original Multi may or
may not be before OldestMxact. Remove an incorrect assertion that
expected it to always be from before OldestMxact.
Oversight in commit 4ce3af.
Author: Peter Geoghegan <pg@bowt.ie>
Reported-By: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://postgr.es/m/TYAPR01MB5866B24104FD80B5D7E65C3EF5ED9@TYAPR01MB5866.jpnprd01.prod.outlook.com
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002_pg_upgrade.pl gains support for a new environment variable called
"filter_rules", that can be used to point to a file that includes a
set of custom regular expressions that would be applied to the dumps of
the origin and target clusters when doing a cross-version test (aka when
defining olddump and oldinstall), to give the possibility to reshape
dynamically the dumps in the same way as the internals of the buildfarm
code so as the tests are able to pass in scenarios where one expects
them to even if pg_dump generates slightly-different outputs depending
on the versions involved.
This option is not used when pg_upgrade runs with the same version for
the origin and target clusters, and it is the last piece I see as
required to be able to plug-in more efficiently the TAP tests of
pg_upgrade with the buildfarm or just a CI.
Author: Anton A. Melnikov
Discussion: https://postgr.es/m/49f389ba-95ce-8a9b-09ae-f60650c0e7c7@inbox.ru
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The error message used on fclose() failure was incorrect, so fix it.
Oversight in d497093, that I have somehow managed to miss.
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This option extracts (potentially decompressing) full-page images
included in WAL records into a given target directory. These images are
subject to the same filtering rules as the normal display of the WAL
records, hence with --relation one can for example extract only the FPIs
issued on the relation defined. By default, the records are printed or
their stats computed (--stats), using --quiet would only save the images
without any output generated.
This is a tool aimed mostly for very experienced users, useful for
fixing page-level corruption or just analyzing the past state of a page,
and there were no easy way to do that with the in-core tools up to now
when looking at WAL.
Each block is saved in a separate file, to ease their manipulation, with
the file respecting <lsn>.<ts>.<db>.<rel>.<blk>_<fork> with as format.
For instance, 00000000-010000C0.1663.1.6117.123_main refers to:
- WAL record LSN in hexa format (00000000-010000C0).
- Tablespace OID (1663).
- Database OID (1).
- Relfilenode (6117).
- Block number (123).
- Fork name of the file this block came from (_main).
Author: David Christensen
Reviewed-by: Sho Kato, Justin Pryzby, Bharath Rupireddy, Matthias van de
Meent
Discussion: https://postgr.es/m/CAOxo6XKjQb2bMSBRpePf3ZpzfNTwjQUc4Tafh21=jzjX6bX8CA@mail.gmail.com
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This enables streaming or serializing changes immediately in logical
decoding. This parameter is intended to be used to test logical decoding
and replication of large transactions for which otherwise we need to
generate the changes till logical_decoding_work_mem is reached.
This helps in reducing the timing of existing tests related to logical
replication of in-progress transactions and will help in writing tests for
for the upcoming feature for parallelly applying large in-progress
transactions.
Author: Shi yu
Reviewed-by: Sawada Masahiko, Shveta Mallik, Amit Kapila, Dilip Kumar, Kuroda Hayato, Kyotaro Horiguchi
Discussion: https://postgr.es/m/OSZPR01MB63104E7449DBE41932DB19F1FD1B9@OSZPR01MB6310.jpnprd01.prod.outlook.com
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f4f2f2b was doing a sequential scan of pg_class before checking if a
relation had attributes dependent on aclitem as data typewhen building
the set of ALTER TABLE queries, but it would be costly on a regression
database.
While on it, make the query style more consistent with the rest.
Reported-by: Justin Pryzby
Discussion: https://postgr.es/m/20221223032724.GQ1153@telsasoft.com
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I missed this in my initial survey, probably because I examined
the contents of pg_type in the postgres database, which lacks
any enumerated types.
Discussion: https://postgr.es/m/CAAJ_b97KeDWUdpTKGOaFYPv0OicjOu6EW+QYWj-Ywrgj_aEy1g@mail.gmail.com
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Reviewed by Tom Lane
Discussion: https://postgr.es/m/a8dc5700-c341-3ba8-0507-cc09881e6200@dunslane.net
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While at it, use a common subroutine already.
This doesn't move the needle very far in terms of making these
functions non-throwing; the only case we're now able to trap is
numeric-OID-is-out-of-range. Still, it seems like a pretty
non-controversial step in that direction.
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ed1a88dda added support functions for the ntile(), percent_rank() and
cume_dist() window functions but neglected to actually add these support
functions to the pg_proc entry for the corresponding window function.
Also, take this opportunity to add these window functions to one of the
regression tests added in ed1a88dda to give the support functions a little
bit of exercise. If I'd done that in the first place then the omission
would have been more obvious.
Bump the catversion, again.
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The test added in commit e44dae07f931 has a thinko: it wants to read
info about a few WAL records, but it obtains the LSN of the final record
to read by asking for the WAL insert position; however,
pg_get_wal_records_info only accepts to read up to the flush position
(cf. IsFutureLSN()). In normal conditions there is no difference, since
the last record written by the preceding loop is known flushed and it's
the one the test wants; but it's possible to have some other process
insert another WAL record that isn't flushed, and that causes the whole
test to explode.
Fix by having pg_get_wal_records_info() read only up to the flushed
position. Backpatch to 15, which is where pg_walinspect appeared.
Author: Karina Litskevich <litskevichkarina@gmail.com>
Discussion: https://postgr.es/m/a5559c95-52c3-5eea-cd63-9b4f1c70ff96@gmail.com
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Fix incorrect code which was trying to convert a Bitmapset of columns at
the attnums according to a parent table and transform them into the
equivalent Bitmapset with same attnums according to the given child table.
This code is new as of a61b1f748 and was failing to do the correct
translation when there was an intermediate parent table between 'rel' and
'top_parent_rel'.
Reported-by: Ranier Vilela
Author: Richard Guo, Amit Langote
Discussion: https://postgr.es/m/CAEudQArohfB_Gy%2BhcH2-bANUkxgjJiP%3DABq01_LgTNTbcNijag%40mail.gmail.com
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An epoll fd belonging to the parent should be closed in the child. A
kqueue fd is automatically closed by fork(), but we should still adjust
our counter. For poll and Windows systems, nothing special is required.
On all systems we free the memory.
No caller yet, but we'll need this if we start using WaitEventSet in the
postmaster as planned.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKG%2BZ-HpOj1JsO9eWUP%2Bar7npSVinsC_npxSy%2BjdOMsx%3DGg%40mail.gmail.com
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