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Since the executor can't cope with a utility statement appearing
as a node of a plan tree, we can't support cases where a rewrite
rule inserts a NOTIFY into an INSERT/UPDATE/DELETE command appearing
in a WITH clause of a larger query. (One can imagine ways around
that, but it'd be a new feature not a bug fix, and so far there's
been no demand for it.) RewriteQuery checked for this, but it
missed the case where the DML command rewrites to *only* a NOTIFY.
That'd lead to crashes later on in planning. Add the missed check,
and improve the level of testing of this area.
Per bug #17094 from Yaoguang Chen. It's been busted since WITH
was introduced, so back-patch to all supported branches.
Discussion: https://postgr.es/m/17094-bf15dff55eaf2e28@postgresql.org
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There was talk about adding units all the way up to yottabytes but it
seems quite far-fetched that anyone would need those. Since such large
units are not exactly commonplace, it seems unlikely that having
pg_size_pretty outputting unit any larger than petabytes would actually be
helpful to anyone.
Since petabytes are on the horizon, let's just add those only. Maybe one
day we'll get to add additional units, but it will likely be a while
before we'll need to think beyond petabytes in regards to the size of a
database.
Author: David Christensen
Discussion: https://postgr.es/m/CAOxo6XKmHc_WZip-x5QwaOqFEiCq_SVD0B7sbTZQk+qqcn2qaw@mail.gmail.com
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Due to how pg_size_pretty(bigint) was implemented, it's possible that when
given a negative number of bytes that the returning value would not match
the equivalent positive return value when given the equivalent positive
number of bytes. This was due to two separate issues.
1. The function used bit shifting to convert the number of bytes into
larger units. The rounding performed by bit shifting is not the same as
dividing. For example -3 >> 1 = -2, but -3 / 2 = -1. These two
operations are only equivalent with positive numbers.
2. The half_rounded() macro rounded towards positive infinity. This meant
that negative numbers rounded towards zero and positive numbers rounded
away from zero.
Here we fix #1 by dividing the values instead of bit shifting. We fix #2
by adjusting the half_rounded macro always to round away from zero.
Additionally, adjust the pg_size_pretty(numeric) function to be more
explicit that it's using division rather than bit shifting. A casual
observer might have believed bit shifting was used due to a static
function being named numeric_shift_right. However, that function was
calculating the divisor from the number of bits and performed division.
Here we make that more clear. This change is just cosmetic and does not
affect the return value of the numeric version of the function.
Here we also add a set of regression tests both versions of
pg_size_pretty() which test the values directly before and after the
function switches to the next unit.
This bug was introduced in 8a1fab36a. Prior to that negative values were
always displayed in bytes.
Author: Dean Rasheed, David Rowley
Discussion: https://postgr.es/m/CAEZATCXnNW4HsmZnxhfezR5FuiGgp+mkY4AzcL5eRGO4fuadWg@mail.gmail.com
Backpatch-through: 9.6, where the bug was introduced.
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Most error messages about a relkind that was not supported or
appropriate for the command was of the pattern
"relation \"%s\" is not a table, foreign table, or materialized view"
This style can become verbose and tedious to maintain. Moreover, it's
not very helpful: If I'm trying to create a comment on a TOAST table,
which is not supported, then the information that I could have created
a comment on a materialized view is pointless.
Instead, write the primary error message shorter and saying more
directly that what was attempted is not possible. Then, in the detail
message, explain that the operation is not supported for the relkind
the object was. To simplify that, add a new function
errdetail_relkind_not_supported() that does this.
In passing, make use of RELKIND_HAS_STORAGE() where appropriate,
instead of listing out the relkinds individually.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://www.postgresql.org/message-id/flat/dc35a398-37d0-75ce-07ea-1dd71d98f8ec@2ndquadrant.com
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Similar to 50e17ad28, which allowed hash tables to be used for IN clauses
with a set of constants, here we add the same feature for NOT IN clauses.
NOT IN evaluates the same as: WHERE a <> v1 AND a <> v2 AND a <> v3.
Obviously, if we're using a hash table we must be exactly equivalent to
that and return the same result taking into account that either side of
the condition could contain a NULL. This requires a little bit of
special handling to make work with the hash table version.
When processing NOT IN, the ScalarArrayOpExpr's operator will be the <>
operator. To be able to build and lookup a hash table we must use the
<>'s negator operator. The planner checks if that exists and is hashable
and sets the relevant fields in ScalarArrayOpExpr to instruct the executor
to use hashing.
Author: David Rowley, James Coleman
Reviewed-by: James Coleman, Zhihong Yu
Discussion: https://postgr.es/m/CAApHDvoF1mum_FRk6D621edcB6KSHBi2+GAgWmioj5AhOu2vwQ@mail.gmail.com
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The original coding was not quoting the complete failing command, and it
wasn't printing the reason for the failure either. Do both.
This is cosmetic only, so no backpatch.
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/202106301524.eq5pblzstapj@alvherre.pgsql
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In 741d7f104, I tried to make the reports from canceled steps come out
after the pg_cancel_backend() steps, since that was the most common
ordering before. However, that doesn't ensure that a canceled step
doesn't report even later, as shown in a recent failure on buildfarm
member idiacanthus. Rather than complicating things even more with
additional annotations, let's just force the cancel's effect to be
reported first. It's not *that* unnatural-looking.
Back-patch to v14 where these test cases appeared.
Report: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=idiacanthus&dt=2021-07-02%2001%3A40%3A04
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Formerly various numeric aggregate functions supported parallel
aggregation by having each worker convert partial aggregate values to
Numeric and use numeric_send() as part of serializing their state.
That's problematic, since the range of Numeric is smaller than that of
NumericVar, so it's possible for it to overflow (on either side of the
decimal point) in cases that would succeed in non-parallel mode.
Fix by serializing NumericVars instead, to avoid the overflow risk and
ensure that parallel and non-parallel modes work the same.
A side benefit is that this improves the efficiency of the
serialization/deserialization code, which can make a noticeable
difference to performance with large numbers of parallel workers.
No back-patch due to risk from changing the binary format of the
aggregate serialization states, as well as lack of prior field
complaints and low probability of such overflows in practice.
Patch by me. Thanks to David Rowley for review and performance
testing, and Ranier Vilela for an additional suggestion.
Discussion: https://postgr.es/m/CAEZATCUmeFWCrq2dNzZpRj5+6LfN85jYiDoqm+ucSXhb9U2TbA@mail.gmail.com
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Commit 0e69f705cc1a introduced code to analyze partitioned table;
however, that code fails to preserve pg_class.relhasindex correctly.
Fix by observing whether any indexes exist rather than accidentally
falling through to assuming none do.
Backpatch to 14.
Author: Alexander Pyhalov <a.pyhalov@postgrespro.ru>
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Zhihong Yu <zyu@yugabyte.com>
Discussion: https://postgr.es/m/CALNJ-vS1R3Qoe5t4tbzxrkpBtzRbPq1dDcW4RmA_a+oqweF30w@mail.gmail.com
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The prove_installcheck recipe in src/Makefile.global.in was emitting
bogus paths for a couple of elements when used with PGXS. Here we create
a separate recipe for the PGXS case that does it correctly. We also take
the opportunity to make the make the file more readable by breaking up
the prove_installcheck and prove_check recipes across several lines, and
to remove the setting for REGRESS_SHLIB to src/test/recovery/Makefile,
which is the only set of tests that actually need it.
Backpatch to all live branches
Discussion: https://postgr.es/m/f2401388-936b-f4ef-a07c-a0bcc49b3300@dunslane.net
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There is a syntactic ambiguity in the SQL standard. Since UNBOUNDED
is a non-reserved word, it could be the name of a function parameter
and be used as an expression. There is a grammar hack to resolve such
cases as the keyword. Add some tests to record this behavior.
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/b2a09a77-3c8f-7c68-c9b7-824054f87d98%40enterprisedb.com
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* Fix enumeration of the multirange operators in calc_multirangesel() and
calc_multirangesel() switches.
* Add more regression tests for matching to empty ranges/multiranges.
Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/c5269c65-f967-77c5-ff7c-15e621c47f6a%40gmail.com
Author: Alexander Korotkov
Backpatch-through: 14, where multiranges were introduced
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The original coding required that PQpipelineSync had been called before
the first call to PQgetResult, and failure to do that would result in an
unexpected NULL result being returned. Fix by setting the right state
when a query is sent, rather than leaving it unchanged and having
PQpipelineSync apply the necessary state change.
A new test case to verify the behavior is added, which relies on the new
PQsendFlushRequest() function added by commit a7192326c74d.
Backpatch to 14, where pipeline mode was added.
Reported-by: Boris Kolpackov <boris@codesynthesis.com>
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/boris.20210616110321@codesynthesis.com
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Commit efbfb6424 added logic for reporting exactly which existing
partition conflicts when complaining that a new hash partition's
modulus isn't compatible with the existing ones. However, it
misunderstood the partitioning data structure, and would select
the wrong partition in some cases, or crash outright due to fetching
a bogus table OID in other cases.
Per bug #17076 from Alexander Lakhin. Fix by Amit Langote;
some further work on the code comments by me.
Discussion: https://postgr.es/m/17076-89a16ae835d329b9@postgresql.org
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As a side effect, this corrects dumps of public schema ACLs in databases
where the DBA dropped and recreated that schema.
Reviewed by Asif Rehman.
Discussion: https://postgr.es/m/20201229134924.GA1431748@rfd.leadboat.com
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Along the way make a slight adjustment to
src/include/utils/queryjumble.h to avoid an unused typedef.
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83158f7 has improved index_set_state_flags() so as it is possible to use
transactional updates when updating pg_index state flags, but there was
not really a test case which stressed directly the possibility it fixed.
This commit adds such a test, using a predicate that looks valid in
appearance but calls a stable function.
Author: Andrey Lepikhov
Discussion: https://postgr.es/m/9b905019-5297-7372-0ad2-e1a4bb66a719@postgrespro.ru
Backpatch-through: 9.6
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specscanner.l leaked a kilobyte of memory per token of the spec file.
Apparently somebody thought that the introductory code block would be
executed once; but it's once per yylex() call.
A couple of functions in isolationtester.c leaked small amounts of
memory due to not bothering to free one-time allocations. Might
as well improve these so that valgrind gives this program a clean
bill of health. Also get rid of an ugly static variable.
Coverity complained about one of the one-time leaks, which led me
to try valgrind'ing isolationtester, which led to discovery of the
larger leak.
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ALTER SUBSCRIPTION DROP PUBLICATION does not actually support
copy_data option, so remove it from tab completion.
Also, reword the error message that is thrown when all the
publications from a subscription are specified to be dropped.
Also, made few doc and cosmetic adjustments.
Author: Vignesh C <vignesh21@gmail.com>
Reviewed-by: Bharath Rupireddy <bharath.rupireddy@enterprisedb.com>
Reviewed-by: Japin Li <japinli@hotmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CALDaNm21RwsDzs4xj14ApteAF7auyyomHNnp+NEL-sH8m-jMvQ@mail.gmail.com
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For no obvious reason, isolationtester has always insisted that
session and step names be written with double quotes. This is
fairly tedious and does little for test readability, especially
since the names that people actually choose almost always look
like normal identifiers. Hence, let's tweak the lexer to allow
SQL-like identifiers not only double-quoted strings.
(They're SQL-like, not exactly SQL, because I didn't add any
case-folding logic. Also there's no provision for U&"..." names,
not that anyone's likely to care.)
There is one incompatibility introduced by this change: if you write
"foo""bar" with no space, that used to be taken as two identifiers,
but now it's just one identifier with an embedded quote mark.
I converted all the src/test/isolation/ specfiles to remove
unnecessary double quotes, but stopped there because my
eyes were glazing over already.
Like 741d7f104, back-patch to all supported branches, so that this
isn't a stumbling block for back-patching isolation test changes.
Discussion: https://postgr.es/m/759113.1623861959@sss.pgh.pa.us
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Previously, isolationtester displayed SQL query results using some
ad-hoc code that clearly hadn't had much effort expended on it.
Field values longer than 14 characters weren't separated from
the next field, and usually caused misalignment of the columns
too. Also there was no visual separation of a query's result
from subsequent isolationtester output. This made test result
files confusing and hard to read.
To improve matters, let's use libpq's PQprint() function. Although
that's long since unused by psql, it's still plenty good enough
for the purpose here.
Like 741d7f104, back-patch to all supported branches, so that this
isn't a stumbling block for back-patching isolation test changes.
Discussion: https://postgr.es/m/582362.1623798221@sss.pgh.pa.us
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The code to signal a running walsender when its reserved WAL size grows
too large is completely uncovered before this commit; this adds coverage
for that case.
This test involves sending SIGSTOP to walsender and walreceiver, then
advancing enough WAL for a checkpoint to trigger, then sending SIGCONT.
There's no precedent for STOP signalling in Perl tests, and my reading
of relevant manpages says it's likely to fail on Windows. Because of
this, this test is always skipped on that platform.
This version fixes a couple of rarely hit race conditions in the
previous attempt 09126984a263; most notably, both LOG string searches
are loops, not just the second one; we acquire the start-of-log position
before STOP-signalling; and reference the correct process name in the
test description. All per Tom Lane.
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/202106102202.mjw4huiix7lo@alvherre.pgsql
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We've long contended with isolation test results that aren't entirely
stable. Some test scripts insert long delays to try to force stable
results, which is not terribly desirable; but other erratic failure
modes remain, causing unrepeatable buildfarm failures. I've spent a
fair amount of time trying to solve this by improving the server-side
support code, without much success: that way is fundamentally unable
to cope with diffs that stem from chance ordering of arrival of
messages from different server processes.
We can improve matters on the client side, however, by annotating
the test scripts themselves to show the desired reporting order
of events that might occur in different orders. This patch adds
three types of annotations to deal with (a) test steps that might or
might not complete their waits before the isolationtester can see them
waiting; (b) test steps in different sessions that can legitimately
complete in either order; and (c) NOTIFY messages that might arrive
before or after the completion of a step in another session. We might
need more annotation types later, but this seems to be enough to deal
with the instabilities we've seen in the buildfarm. It also lets us
get rid of all the long delays that were previously used, cutting more
than a minute off the runtime of the isolation tests.
Back-patch to all supported branches, because the buildfarm
instabilities affect all the branches, and because it seems desirable
to keep isolationtester's capabilities the same across all branches
to simplify possible future back-patching of tests.
Discussion: https://postgr.es/m/327948.1623725828@sss.pgh.pa.us
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This reverts commit 09126984a263; the test case added there failed once
in circumstances that remain mysterious. It seems better to remove the
test for now so that 14beta2 doesn't have random failures built in.
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Commit e7eea52b2d has introduced a new function
RelationGetIdentityKeyBitmap which omits to handle the case where there is
no replica identity index on a relation.
Author: Mark Dilger
Reviewed-by: Takamichi Osumi, Amit Kapila
Discussion: https://www.postgresql.org/message-id/4C99A862-69C8-431F-960A-81B1151F1B89@enterprisedb.com
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Generalize the INDEX_CLEANUP VACUUM parameter (and the corresponding
reloption): make it into a ternary style boolean parameter. It now
exposes a third option, "auto". The "auto" option (which is now the
default) enables the "bypass index vacuuming" optimization added by
commit 1e55e7d1.
"VACUUM (INDEX_CLEANUP TRUE)" is redefined to once again make VACUUM
simply do any required index vacuuming, regardless of how few dead
tuples are encountered during the first scan of the target heap relation
(unless there are exactly zero). This gives users a way of opting out
of the "bypass index vacuuming" optimization, if for whatever reason
that proves necessary. It is also expected to be used by PostgreSQL
developers as a testing option from time to time.
"VACUUM (INDEX_CLEANUP FALSE)" does the same thing as it always has: it
forcibly disables both index vacuuming and index cleanup. It's not
expected to be used much in PostgreSQL 14. The failsafe mechanism added
by commit 1e55e7d1 addresses the same problem in a simpler way.
INDEX_CLEANUP can now be thought of as a testing and compatibility
option.
Author: Peter Geoghegan <pg@bowt.ie>
Reviewed-By: Masahiko Sawada <sawada.mshk@gmail.com>
Reviewed-By: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://postgr.es/m/CAH2-WznrBoCST4_Gxh_G9hA8NzGUbeBGnOUC8FcXcrhqsv6OHQ@mail.gmail.com
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The code to signal a running walsender when its reserved WAL size grows
too large is completely uncovered before this commit; this adds coverage
for that case.
This test involves sending SIGSTOP to walsender and walreceiver and
running a checkpoint while advancing WAL, then sending SIGCONT. There's
no precedent for this coding in Perl tests, and my reading of relevant
manpages says it's likely to fail on Windows. Because of this, this
test is always skipped on that platform.
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/202106102202.mjw4huiix7lo@alvherre.pgsql
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Ordinarily, a pg_policy.polroles array wouldn't list the same role
more than once; but CREATE POLICY does not prevent that. If we
perform DROP OWNED BY on a role that is listed more than once,
RemoveRoleFromObjectPolicy either suffered an assertion failure
or encountered a tuple-updated-by-self error. Rewrite it to cope
correctly with duplicate entries, and add a CommandCounterIncrement
call to prevent the other problem.
Per discussion, there's other cleanup that ought to happen here,
but this seems like the minimum essential fix.
Per bug #17062 from Alexander Lakhin. It's been broken all along,
so back-patch to all supported branches.
Discussion: https://postgr.es/m/17062-11f471ae3199ca23@postgresql.org
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The fast default code added in Release 11 omitted to check that the
table a fast default was being added to was a plain table. Thus one
could be added to a foreign table, which predicably blows up. Here we
perform that check.
In addition, on the back branches, since some of these might have
escaped into the wild, if we encounter a missing value for
an attribute of something other than a plain table we ignore it.
Fixes bug #17056
Backpatch to release 11,
Reviewed by: Andres Freund, Álvaro Herrera and Tom Lane
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This should have been updated in 533e9c6b0, but it was overlooked.
Given the lack of complaints, I won't bother back-patching.
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aborted-keyrevoke_2.out was apparently needed when it was added (in
commit 0ac5ad513) to handle the case of serializable transaction mode.
However, the output in serializable mode actually matches the regular
aborted-keyrevoke.out file, and AFAICT has done so for a long time.
There's no need to keep dragging this variant along.
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TestLib::perl2host can take a file argument as well as a directory
argument, so that code becomes substantially simpler. Also add comments
on why we're using forward slashes, and why we're setting
PERL_BADLANG=0.
Discussion: https://postgr.es/m/e9947bcd-20ee-027c-f0fe-01f736b7e345@dunslane.net
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Reported-by: Tom Lane
Discussion: https://postgr.es/m/CAPpHfdvcnw3x7jdV3r52p4%3D5S4WUxBCzcQKB3JukQHoicv1LSQ%40mail.gmail.com
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It has been spotted that multiranges lack of ability to decompose them into
individual ranges. Subscription and proper expanded object representation
require substantial work, and it's too late for v14. This commit
provides the implementation of unnest(multirange) and cast multirange as
an array of ranges, which is quite trivial.
unnest(multirange) is defined as a polymorphic procedure. The catalog
description of the cast underlying procedure is duplicated for each multirange
type because we don't have anyrangearray polymorphic type to use here.
Catversion is bumped.
Reported-by: Jonathan S. Katz
Discussion: https://postgr.es/m/flat/60258efe-bd7e-4886-82e1-196e0cac5433%40postgresql.org
Author: Alexander Korotkov
Reviewed-by: Justin Pryzby, Jonathan S. Katz, Zhihong Yu
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This should have been updated in d2d8a229b, but it was overlooked.
According to 31a877f18 which added it, this file is meant to show the
results you get under default_transaction_isolation = serializable.
We've largely lost track of that goal in other isolation tests, but
as long as we've got this one, it should be right.
Noted while fooling about with the isolationtester.
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This should have been removed in 43e084197, which removed the
corresponding spec file. Noted while fooling about with the
isolationtester.
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An object found as dropped when digging into the list of objects
returned by pg_event_trigger_ddl_commands() could cause a cache lookup
error, as the calls grabbing for the object address and the type name
would fail if the object was missing.
Those lookup errors could be seen with combinations of ALTER TABLE
sub-commands involving identity columns. The lookup logic is changed in
this code path to get a behavior similar to any other SQL-callable
function by ignoring objects that are not found, taking advantage of
2a10fdc. The back-branches are not changed, as they require this commit
that is too invasive for stable branches.
While on it, add test cases to exercise event triggers with identity
columns, and stress more cases with the event ddl_command_end for
relations.
Author: Sven Klemm, Aleksander Alekseev, Michael Paquier
Discussion: https://postgr.es/m/CAMCrgp2R1cEXU53iYKtW6yVEp2_yKUz+z=3-CTrYpPP+xryRtg@mail.gmail.com
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The extra checks added by the recompression of toast data introduced in
bbe0a81 is proving to have a performance impact on VACUUM or CLUSTER
even if no recompression is done. This is more noticeable with more
toastable columns that contain non-NULL values.
Improvements could be done to make those extra checks less expensive,
but that's not material for 14 at this stage, and we are not sure either
if the code path of VACUUM FULL/CLUSTER is adapted for this job.
Per discussion with several people, including Andres Freund, Robert
Haas, Álvaro Herrera, Tom Lane and myself.
Discussion: https://postgr.es/m/20210527003144.xxqppojoiwurc2iz@alap3.anarazel.de
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Translate path slashes on target directory path. This was confusing old
branches, but is applied to all branches for the sake of uniformity.
Perl is perfectly able to understand paths with forward slashes.
Along the way, restore the previous archive_wait query, for the sake of
uniformity with other tests, per gripe from Tom Lane.
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This is similar to the work done in 8279f68 for TestLib.pm, where
environment variables set may cause unwanted failures if using a
temporary installation with pg_regress. The list of variables reset is
adjusted in each stable branch depending on what is supported.
Comments are added to remember that the lists in TestLib.pm and
pg_regress.c had better be kept in sync.
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/YMNR9GYDn+fHlMta@paquier.xyz
Backpatch-through: 9.6
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Several TAP tests use poll_query_until() to wait for the postmaster
to restart. They were checking to see if a trivial query
(e.g. "SELECT 1") succeeds. However, that's problematic in the wake
of commit 11e9caff8, because now that we feed said query to psql
via stdin, we risk IPC::Run whining about a SIGPIPE failure if psql
quits before reading the query. Hence, we can't use a nonempty
query in cases where we need to wait for connection failures to
stop happening.
Per the precedent of commits c757a3da0 and 6d41dd045, we can pass
"undef" as the query in such cases to ensure that IPC::Run has
nothing to write. However, then we have to say that the expected
output is empty, and this exposes a deficiency in poll_query_until:
if psql fails altogether and returns empty stdout, poll_query_until
will treat that as a success! That's because, contrary to its
documentation, it makes no actual check for psql failure, looking
neither at the exit status nor at stderr.
To fix that, adjust poll_query_until to insist on empty stderr as
well as a stdout match. (I experimented with checking exit status
instead, but it seems that psql often does exit(1) in cases that we
need to consider successes. That might be something to fix someday,
but it would be a non-back-patchable behavior change.)
Back-patch to v10. The test cases needing this exist only as far
back as v11, but it seems wise to keep poll_query_until's behavior
the same in v10, in case we back-patch another such test case in
future. (9.6 does not currently need this change, because in that
branch poll_query_until can't be told to accept empty stdout as
a success case.)
Per assorted buildfarm failures, mostly on hoverfly.
Discussion: https://postgr.es/m/CAA4eK1+zM6L4QSA1XMvXY_qqWwdUmqkOS1+hWvL8QcYEBGA1Uw@mail.gmail.com
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Commit caba8f0d43 wasn't quite right for msys, as demonstrated by
several buildfarm animals, including jacana and fairywren. We need to
use the msys perl in the archive command, but call it in such a way that
Windows will understand the path. Furthermore, inside the copy script we
need to convert a Windows path to an msys path.
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ab55d74 has introduced some tests with rows found as missing in logical
replication subscriptions for partitioned tables, relying on a logic
with a lookup of the logs generated, scanning the whole file. This
commit makes the logic more precise, by scanning the logs only from the
position before the key queries are run to the position where we check
for the logs. This will reduce the risk of issues with log patterns
overlapping with each other if those tests get more complicated in the
future.
Per discussion with Tom Lane.
Discussion: https://postgr.es/m/YMP+Gx2S8meYYHW4@paquier.xyz
Backpatch-through: 13
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apply_handle_tuple_routing(), having detected and reported that
the tuple it needed to update didn't exist, tried to update that
tuple anyway, leading to a null-pointer dereference.
logicalrep_partition_open() failed to ensure that the
LogicalRepPartMapEntry it built for a partition was fully
independent of that for the partition root, leading to
trouble if the root entry was later freed or rebuilt.
Meanwhile, on the publisher's side, pgoutput_change() sometimes
attempted to apply execute_attr_map_tuple() to a NULL tuple.
The first of these was reported by Sergey Bernikov in bug #17055;
I found the other two while developing some test cases for this
sadly under-tested code.
Diagnosis and patch for the first issue by Amit Langote; patches
for the others by me; new test cases by me. Back-patch to v13
where this logic came in.
Discussion: https://postgr.es/m/17055-9ba800ec8522668b@postgresql.org
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Commit acb7e4eb6b1c added a new implementation for PQsendQuery so that
it works in pipeline mode (by using extended query protocol), but it
behaves differently from the 'Q' message (in simple query protocol) used
by regular implementation: the new one doesn't close the unnamed portal.
Change the new code to have identical behavior to the old.
Reported-by: Yura Sokolov <y.sokolov@postgrespro.ru>
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/202106072107.d4i55hdscxqj@alvherre.pgsql
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We have a dozen PQset*() functions. PQresultSetInstanceData() and this
were the libpq setter functions having a different word order. Adopt
the majority word order.
Reviewed by Alvaro Herrera and Robert Haas, though this choice of name
was not unanimous.
Discussion: https://postgr.es/m/20210605060555.GA216695@rfd.leadboat.com
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Commit 2453ea142 redefined pg_proc.proargtypes to include the types of
OUT parameters, for procedures only. While that had some advantages
for implementing the SQL-spec behavior of DROP PROCEDURE, it was pretty
disastrous from a number of other perspectives. Notably, since the
primary key of pg_proc is name + proargtypes, this made it possible to
have multiple procedures with identical names + input arguments and
differing output argument types. That would make it impossible to call
any one of the procedures by writing just NULL (or "?", or any other
data-type-free notation) for the output argument(s). The change also
seems likely to cause grave confusion for client applications that
examine pg_proc and expect the traditional definition of proargtypes.
Hence, revert the definition of proargtypes to what it was, and
undo a number of complications that had been added to support that.
To support the SQL-spec behavior of DROP PROCEDURE, when there are
no argmode markers in the command's parameter list, we perform the
lookup both ways (that is, matching against both proargtypes and
proallargtypes), succeeding if we get just one unique match.
In principle this could result in ambiguous-function failures
that would not happen when using only one of the two rules.
However, overloading of procedure names is thought to be a pretty
rare usage, so this shouldn't cause many problems in practice.
Postgres-specific code such as pg_dump can defend against any
possibility of such failures by being careful to specify argmodes
for all procedure arguments.
This also fixes a few other bugs in the area of CALL statements
with named parameters, and improves the documentation a little.
catversion bump forced because the representation of procedures
with OUT arguments changes.
Discussion: https://postgr.es/m/3742981.1621533210@sss.pgh.pa.us
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Per buildfarm member conchuela and Kyotaro Horiguchi, it's possible
for the WAL segment that the cascading standby needs to be removed
too quickly. Hopefully this will prevent that.
Kyotaro Horiguchi
Discussion: http://postgr.es/m/20210610.101240.1270925505780628275.horikyota.ntt@gmail.com
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This only happens if (1) the new standby has no WAL available locally,
(2) the new standby is starting from the old timeline, (3) the promotion
happened in the WAL segment from which the new standby is starting,
(4) the timeline history file for the new timeline is available from
the archive but the WAL files for are not (i.e. this is a race),
(5) the WAL files for the new timeline are available via streaming,
and (6) recovery_target_timeline='latest'.
Commit ee994272ca50f70b53074f0febaec97e28f83c4e introduced this
logic and was an improvement over the previous code, but it mishandled
this case. If recovery_target_timeline='latest' and restore_command is
set, validateRecoveryParameters() can change recoveryTargetTLI to be
different from receiveTLI. If streaming is then tried afterward,
expectedTLEs gets initialized with the history of the wrong timeline.
It's supposed to be a list of entries explaining how to get to the
target timeline, but in this case it ends up with a list of entries
explaining how to get to the new standby's original timeline, which
isn't right.
Dilip Kumar and Robert Haas, reviewed by Kyotaro Horiguchi.
Discussion: http://postgr.es/m/CAFiTN-sE-jr=LB8jQuxeqikd-Ux+jHiXyh4YDiZMPedgQKup0g@mail.gmail.com
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