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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 82b08ac4d1dfb5febd26bb493d0055cc5d71d513
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Spotted mostly by Fabien Coelho.
Discussion: https://www.postgresql.org/message-id/alpine.DEB.2.21.1901230947050.16643@lancre
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To avoid the sorts of problems complained of by Jakob Egger, it'd be
best if configure didn't emit any references to the sysroot path at all.
In the case of PL/Tcl, we can do that just by keeping our hands off the
TCL_INCLUDE_SPEC string altogether. In the case of PL/Perl, we need to
substitute -iwithsysroot for -I in the compile commands, which is easily
handled if we change to using a configure output variable that includes
the switch not only the directory name. Since PL/Tcl and PL/Python
already do it like that, this seems like good consistency cleanup anyway.
Hence, this replaces the advice given to Perl-related extensions in commit
5e2217131; instead of writing "-I$(perl_archlibexp)/CORE", they should
just write "$(perl_includespec)". (The old way continues to work, but not
on recent macOS.)
It's still the case that configure needs to be aware of the sysroot
path internally, but that's cleaner than what we had before.
As before, back-patch to all supported versions.
Discussion: https://postgr.es/m/20840.1537850987@sss.pgh.pa.us
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Apple's latest rearrangements of the system-supplied headers have broken
building of PL/Perl and PL/Tcl. The only practical way to fix PL/Tcl is to
start using the "-isysroot" compiler flag to point to SDK-supplied headers,
as Apple expects. We must also start distinguishing where to find Perl's
headers from where to find its shared library; but that seems like good
cleanup anyway.
Extensions that formerly did something like -I$(perl_archlibexp)/CORE
should now do -I$(perl_includedir)/CORE instead. perl_archlibexp
is still the place to look for libperl.so, though.
If for some reason you don't like the default -isysroot setting, you can
override that by setting PG_SYSROOT in configure's arguments. I don't
currently think people would need to do so, unless maybe for cross-version
build purposes.
In addition, teach configure where to find tclConfig.sh. Our traditional
method of searching $auto_path hasn't worked for the last couple of macOS
releases, and it now seems clear that Apple's not going to change that.
The workaround of manually specifying --with-tclconfig was annoying
already, but Mojave's made it a lot more so because the sysroot path now
has to be included as well. Let's just wire the knowledge into configure
instead. To avoid breaking builds against non-default Tcl installations
(e.g. MacPorts) wherein the $auto_path method probably still works,
arrange to try the additional case only after all else has failed.
Back-patch to all supported versions, since at least the buildfarm
cares about that. The changes are set up to not do anything on macOS
releases that are old enough to not have functional sysroot trees.
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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 901dbb2f9c08846927a0f103adf87e234bc47844
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A collection of typos I happened to spot while reading code, as well as
grepping for common mistakes.
Backpatch to all supported versions, as applicable, to avoid conflicts
when backporting other commits in the future.
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To distinguish SQL statements that are INSERT/UPDATE/DELETE from other
ones, exec_stmt_execsql looked at the post-rewrite form of the statement
rather than the original. This is problematic because it did that only
during first execution of the statement (in a session), but the correct
answer could change later due to addition or removal of DO INSTEAD rules
during the session. That could lead to an Assert failure, as reported
by Tushar Ahuja and Robert Haas. In non-assert builds, there's a hazard
that we would fail to enforce STRICT behavior when we'd be expected to.
That would happen if an initially present DO INSTEAD, that replaced the
original statement with one of a different type, were removed; after that
the statement should act "normally", including strictness enforcement, but
it didn't. (The converse case of enforcing strictness when we shouldn't
doesn't seem to be a hazard, as addition of a DO INSTEAD that changes the
statement type would always lead to acting as though the statement returned
zero rows, so that the strictness error could not fire.)
To fix, inspect the original form of the statement not the post-rewrite
form, making it valid to assume the answer can't change intra-session.
This should lead to the same answer in every case except when there is a
DO INSTEAD that changes the statement type; we will now set mod_stmt=true
anyway, while we would not have done so before. That breaks the Assert
in the SPI_OK_REWRITTEN code path, which expected the latter behavior.
It might be all right to assert mod_stmt rather than !mod_stmt there,
but I'm not entirely convinced that that'd always hold, so just remove
the assertion altogether.
This has been broken for a long time, so back-patch to all supported
branches.
Discussion: https://postgr.es/m/CA+TgmoZUrRN4xvZe_BbBn_Xp0BDwuMEue-0OyF0fJpfvU2Yc7Q@mail.gmail.com
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 8807686cb166e570052e709ab45103c4e8ca2e29
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Python 3.7 removes the trailing comma in the repr() of
BaseException (see <https://bugs.python.org/issue30399>), leading to
test output differences. Work around that by composing the equivalent
test output in a more manual way.
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For years, our makefiles have correctly observed that "there is no correct
way to write a rule that generates two files". However, what we did is to
provide empty rules that "generate" the secondary output files from the
primary one, and that's not right either. Depending on the details of
the creating process, the primary file might end up timestamped later than
one or more secondary files, causing subsequent make runs to consider the
secondary file(s) out of date. That's harmless in a plain build, since
make will just re-execute the empty rule and nothing happens. But it's
fatal in a VPATH build, since make will expect the secondary file to be
rebuilt in the build directory. This would manifest as "file not found"
failures during VPATH builds from tarballs, if we were ever unlucky enough
to ship a tarball with apparently out-of-date secondary files. (It's not
clear whether that has ever actually happened, but it definitely could.)
To ensure that secondary output files have timestamps >= their primary's,
change our makefile convention to be that we provide a "touch $@" action
not an empty rule. Also, make sure that this rule actually gets invoked
during a distprep run, else the hazard remains.
It's been like this a long time, so back-patch to all supported branches.
In HEAD, I skipped the changes in src/backend/catalog/Makefile, because
those rules are due to get replaced soon in the bootstrap data format
patch, and there seems no need to create a merge issue for that patch.
If for some reason we fail to land that patch in v11, we'll need to
back-fill the changes in that one makefile from v10.
Discussion: https://postgr.es/m/18556.1521668179@sss.pgh.pa.us
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The test to exit the loop if the integer control value would overflow
an int32 turns out not to work on some ICC versions, as it's dependent
on the assumption that the compiler will execute the code as written
rather than "optimize" it. ICC lacks any equivalent of gcc's -fwrapv
switch, so it was optimizing on the assumption of no integer overflow,
and that breaks this. Rewrite into a form that in fact does not
do any overflowing computations.
Per Tomas Vondra and buildfarm member fulmar. It's been like this
for a long time, although it was not till we added a regression test
case covering the behavior (in commit dd2243f2a) that the problem
became apparent. Back-patch to all supported versions.
Discussion: https://postgr.es/m/50562fdc-0876-9843-c883-15b8566c7511@2ndquadrant.com
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 4b11a4320dc2d543629ae1b61cc39112cc8f3947
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plpython_error_callback() reported the name of the function associated
with the topmost PL/Python execution context. This was not merely
wrong if there were nested PL/Python contexts, but it risked a core
dump if the topmost one is an inline code block rather than a named
function. That will have proname = NULL, and so we were passing a NULL
pointer to snprintf("%s"). It seems that none of the PL/Python-testing
machines in the buildfarm will dump core for that, but some platforms do,
as reported by Marina Polyakova.
Investigation finds that there actually is an existing regression test
that used to prove that the behavior was wrong, though apparently no one
had noticed that it was printing the wrong function name. It stopped
showing the problem in 9.6 when we adjusted psql to not print CONTEXT
by default for NOTICE messages. The problem is masked (if your platform
avoids the core dump) in error cases, because PL/Python will throw away
the originally generated error info in favor of a new traceback produced
at the outer level.
Repair by using ErrorContextCallback.arg to pass the correct context to
the error callback. Add a regression test illustrating correct behavior.
Back-patch to all supported branches, since they're all broken this way.
Discussion: https://postgr.es/m/156b989dbc6fe7c4d3223cf51da61195@postgrespro.ru
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 729c338a50b452e86cd740cb9878554be4264f32
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This is necessary for ActivePerl 5.18 onwards and for Strawberry Perl.
It is not sufficient for 32-bit builds with newer Visual Studio; these
fail with error LINK2026. Back-patch to 9.3 (all supported versions).
Reported by Victor Wagner.
Discussion: https://postgr.es/m/20160326154321.7754ab8f@wagner.wagner.home
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: bb30ba75db8403a9ce4fb8ba6b7c3fe42ac4069e
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: d316c7f205275603a833ab9758ce51a76846ec58
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Back-patch of commit 3c163a7fc76debbbdad1bdd3c43721cffe72f4db,
which see for more info.
Also throw in commit b4cc35fbb709bd6fcae8998f041fd731c9acbf42,
so Coverity doesn't whine about the back branches.
Ashutosh Sharma, some adjustments by me
Discussion: https://postgr.es/m/CANFyU97OVQ3+Mzfmt3MhuUm5NwPU=-FtbNH5Eb7nZL9ua8=rcA@mail.gmail.com
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Back-patch of commit bebe174bb4462ef079a1d7eeafb82ff969f160a4,
which see for more info.
Patch by me, with some help from Ashutosh Sharma
Discussion: https://postgr.es/m/CANFyU97OVQ3+Mzfmt3MhuUm5NwPU=-FtbNH5Eb7nZL9ua8=rcA@mail.gmail.com
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 14c4b5cb0f9330a9397159979c48e7076fa856d8
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One case in the PL/Tcl tests is observed to fail on RHEL5 with a Turkish
time zone setting. It's not clear if this is an old Tcl bug or something
odd about the zone data, but in any case that test is meant to see if the
Tcl [clock] command works at all, not what its corner-case behaviors are.
Therefore we have no need to test exactly which week a Sunday midnight is
considered to fall into. Probe the following Tuesday instead.
Discussion: https://postgr.es/m/797.1487517822@sss.pgh.pa.us
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: e7df014526482b9ee2f736d01d09cf979a4e31e2
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Backpatch to all supported versions, where applicable, to make backpatching
of future fixes go more smoothly.
Josh Soref
Discussion: https://www.postgresql.org/message-id/CACZqfqCf+5qRztLPgmmosr-B0Ye4srWzzw_mo4c_8_B_mtjmJQ@mail.gmail.com
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PLy_generate_spi_exceptions neglected to do Py_INCREF on the new exception
objects, evidently supposing that PyModule_AddObject would do that --- but
it doesn't. This left us in a situation where a Python garbage collection
cycle could result in deletion of exception object(s), causing server
crashes or wrong answers if the exception objects are used later in the
session.
In addition, PLy_generate_spi_exceptions didn't bother to test for
a null result from PyErr_NewException, which at best is inconsistent
with the code in PLy_add_exceptions. And PLy_add_exceptions, while it
did do Py_INCREF on the exceptions it makes, waited to do that till
after some PyModule_AddObject calls, creating a similar risk for
failure if garbage collection happened within those calls.
To fix, refactor to have just one piece of code that creates an
exception object and adds it to the spiexceptions module, bumping the
refcount first.
Also, let's add an additional refcount to represent the pointer we're
going to store in a C global variable or hash table. This should only
matter if the user does something weird like delete the spiexceptions
Python module, but lack of paranoia has caused us enough problems in
PL/Python already.
The fact that PyModule_AddObject doesn't do a Py_INCREF of its own
explains the need for the Py_INCREF added in commit 4c966d920, so we
can improve the comment about that; also, this means we really want
to do that before not after the PyModule_AddObject call.
The missing Py_INCREF in PLy_generate_spi_exceptions was reported and
diagnosed by Rafa de la Torre; the other fixes by me. Back-patch
to all supported branches.
Discussion: https://postgr.es/m/CA+Fz15kR1OXZv43mDrJb3XY+1MuQYWhx5kx3ea6BRKQp6ezGkg@mail.gmail.com
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For a very long time, pltcl's spi_exec and spi_execp commands have had
a behavior of storing the current row number as an element of output
arrays, but this was never documented. Fix that.
For an equally long time, pltcl_trigger_handler had a behavior of silently
ignoring ".tupno" as an output column name, evidently so that the result
of spi_exec could be used directly as a trigger result tuple. Not sure
how useful that really is, but in any case it's bad that it would break
attempts to use ".tupno" as an actual column name. We can fix it by not
checking for ".tupno" until after we check for a column name match. This
comports with the effective behavior of spi_exec[p] that ".tupno" is only
magic when you don't have an actual column named that.
In passing, wordsmith the description of returning modified tuples from
a pltcl trigger.
Noted while working on Jim Nasby's patch to support composite results
from pltcl. The inability to return trigger tuples using ".tupno" as
a column name is a bug, so back-patch to all supported branches.
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We must do this in case the expression evaluation results in calling
another plpgsql function (or, really, anything using SPI). I missed
the need for this when I converted exec_cast_value() from doing a
simple InputFunctionCall() to doing ExecEvalExpr() in commit 1345cc67b.
There is a SPI_push_conditional in InputFunctionCall(), so that there
was no bug before that.
Per bug #14414 from Marcos Castedo. Add a regression test based on his
example, which was that a plpgsql function in a domain check constraint
didn't work when assigning to a domain-type variable within plpgsql.
Report: <20161106010947.1387.66380@wrigleys.postgresql.org>
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 2c7265d5e5c1d7858c6636bd366f28c41ed5173e
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These types are storage-compatible with real arrays, but they don't support
toasting, so of course they can't support expansion either.
Per bug #14289 from Michael Overmeyer. Back-patch to 9.5 where expanded
arrays were introduced.
Report: <20160818174414.1529.37913@wrigleys.postgresql.org>
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: f1a1631efd7a51f9b1122f22cf688a3124bf1342
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Another peculiarity of Danish locale is that it has an unusual idea
of how to sort upper vs. lower case. One of the pltcl test cases has
an issue with that. Now that COLLATE works in all supported branches,
we can just change the test to be locale-independent, and get rid of
the variant expected file that used to support non-C locales.
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Since IMPORT FOREIGN SCHEMA has an INTO clause, pl/pgsql needs to be
aware of that and avoid capturing the INTO as an INTO-variables clause.
This isn't hard, though it's annoying to have to make IMPORT a plpgsql
keyword just for this. (Fortunately, we have the infrastructure now
to make it an unreserved keyword, so at least this shouldn't break any
existing pl/pgsql code.)
Per report from Merlin Moncure. Back-patch to 9.5 where IMPORT FOREIGN
SCHEMA was introduced.
Report: <CAHyXU0wpHf2bbtKGL1gtUEFATCY86r=VKxfcACVcTMQ70mCyig@mail.gmail.com>
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Per report from Andreas Seltenreich. Back-patch to affected versions.
Report: <874m8nn0hv.fsf@elite.ansel.ydns.eu>
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 7a7a803d44fad7952cf6b1a1da29df2b06b1b380
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It turns out that those PyErr_Clear() calls I removed from plpy_elog.c
in 7e3bb080387f4143 et al were not quite as random as they appeared: they
mask a Python 2.3.x bug. (Specifically, it turns out that PyType_Ready()
can fail if the error indicator is set on entry, and PLy_traceback's fetch
of frame.f_code may be the first operation in a session that requires the
"frame" type to be readied. Ick.) Put back the clear call, but in a more
centralized place closer to what it's protecting, and this time with a
comment warning what it's really for.
Per buildfarm member prairiedog. Although prairiedog was only failing
on HEAD, it seems clearly possible for this to occur in older branches
as well, so back-patch to 9.2 the same as the previous patch.
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PLy_elog() could attempt to access strings that Python had already freed,
because the strings that PLy_get_spi_error_data() returns are simply
pointers into storage associated with the error "val" PyObject. That's
fine at the instant PLy_get_spi_error_data() returns them, but just after
that PLy_traceback() intentionally releases the only refcount on that
object, allowing it to be freed --- so that the strings we pass to
ereport() are dangling pointers.
In principle this could result in garbage output or a coredump. In
practice, I think the risk is pretty low, because there are no Python
operations between where we decrement that refcount and where we use the
strings (and copy them into PG storage), and thus no reason for Python
to recycle the storage. Still, it's clearly hazardous, and it leads to
Valgrind complaints when running under a Valgrind that hasn't been
lobotomized to ignore Python memory allocations.
The code was a mess anyway: we fetched the error data out of Python
(clearing Python's error indicator) with PyErr_Fetch, examined it, pushed
it back into Python with PyErr_Restore (re-setting the error indicator),
then immediately pulled it back out with another PyErr_Fetch. Just to
confuse matters even more, there were some gratuitous-and-yet-hazardous
PyErr_Clear calls in the "examine" step, and we didn't get around to doing
PyErr_NormalizeException until after the second PyErr_Fetch, making it even
less clear which object was being manipulated where and whether we still
had a refcount on it. (If PyErr_NormalizeException did substitute a
different "val" object, it's possible that the problem could manifest for
real, because then we'd be doing assorted Python stuff with no refcount
on the object we have string pointers into.)
So, rearrange all that into some semblance of sanity, and don't decrement
the refcount on the Python error objects until the end of PLy_elog().
In HEAD, I failed to resist the temptation to reformat some messy bits
from 5c3c3cd0a3046339 along the way.
Back-patch as far as 9.2, because the code is substantially the same
that far back. I believe that 9.1 has the bug as well; but the code
around it is rather different and I don't want to take a chance on
breaking something for what seems a low-probability problem.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 0ffb9ae13cb7e2a9480ed8ee34071074bd80a7aa
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plperl_ref_from_pg_array() didn't consider the case that postgrs arrays
can have 0 dimensions (when they're empty) and accessed the first
dimension without a check. Fix that by special casing the empty array
case.
Author: Alex Hunsaker
Reported-By: Andres Freund / valgrind / buildfarm animal skink
Discussion: 20160308063240.usnzg6bsbjrne667@alap3.anarazel.de
Backpatch: 9.1-
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A function name that's double-quoted in SQL can contain almost any
characters, but we were using that name directly as part of the name
generated for the Python-level function, and Python doesn't like
anything that isn't pretty much a standard identifier. To fix,
replace anything that isn't an ASCII letter or digit with an underscore
in the generated name. This doesn't create any risk of duplicate Python
function names because we were already appending the function OID to
the generated name to ensure uniqueness. Per bug #13960 from Jim Nasby.
Patch by Jim Nasby, modified a bit by me. Back-patch to all
supported branches.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: f323fead9293175a0c3320116c97e4be56b9be61
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Commit 803716013dc1350f installed a safeguard against loading plpython2
and plpython3 at the same time, but asserted that both could still be
used in the same database, just not in the same session. However, that's
not actually all that practical because dumping and reloading will fail
(since both libraries necessarily get loaded into the restoring session).
pg_upgrade is even worse, because it checks for missing libraries by
loading every .so library mentioned in the entire installation into one
session, so that you can have only one across the whole cluster.
We can improve matters by not throwing the error immediately in _PG_init,
but only when and if we're asked to do something that requires calling
into libpython. This ameliorates both of the above situations, since
while execution of CREATE LANGUAGE, CREATE FUNCTION, etc will result in
loading plpython, it isn't asked to do anything interesting (at least
not if check_function_bodies is off, as it will be during a restore).
It's possible that this opens some corner-case holes in which a crash
could be provoked with sufficient effort. However, since plpython
only exists as an untrusted language, any such crash would require
superuser privileges, making it "don't do that" not a security issue.
To reduce the hazards in this area, the error is still FATAL when it
does get thrown.
Per a report from Paul Jones. Back-patch to 9.2, which is as far back
as the patch applies without work. (It could be made to work in 9.1,
but given the lack of previous complaints, I'm disinclined to expend
effort so far back. We've been pretty desultory about support for
Python 3 in 9.1 anyway.)
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The error message wording for AttributeError has changed in Python 3.5.
For the plpython_error test, add a new expected file. In the
plpython_subtransaction test, we didn't really care what the exception
is, only that it is something coming from Python. So use a generic
exception instead, which has a message that doesn't vary across
versions.
Back-patch of commit f16d52269a196f7f303abe3b978d95ade265f05f, which
was previously back-patched into 9.2-9.4, but missed 9.5.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 3b0ccc27cf917446ea0a6c680b70534cfcaba81e
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This should make Coverity deduce that plperl_call_perl_func() does not
dereference NULL argtypes. Back-patch to 9.5, where the affected code
was introduced.
Michael Paquier
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Silly mistake in my commit 09cecdf285ea9f51, reported by Erik Rijkers.
The fact that the buildfarm didn't find this implies that we are not
testing Perl builds that lack MULTIPLICITY, which is a bit disturbing
from a coverage standpoint. Until today I'd have said nobody cared
about such configurations anymore; but maybe not.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: cd263526676705b4a8a3a708c9842461c4a2bcc3
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 23a52bc86edcd39c3c6b80ee1f7374759c8711f8
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We were passing error message texts to croak() verbatim, which turns out
not to work if the text contains non-ASCII characters; Perl mangles their
encoding, as reported in bug #13638 from Michal Leinweber. To fix, convert
the text into a UTF8-encoded SV first.
It's hard to test this without risking failures in different database
encodings; but we can follow the lead of plpython, which is already
assuming that no-break space (U+00A0) has an equivalent in all encodings
we care about running the regression tests in (cf commit 2dfa15de5).
Back-patch to 9.1. The code is quite different in 9.0, and anyway it seems
too risky to put something like this into 9.0's final minor release.
Alex Hunsaker, with suggestions from Tim Bunce and Tom Lane
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Also, rewrite one error message to make it follow our message style
guidelines better.
Euler Taveira and Tom Lane
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PLyString_ToComposite() blithely overwrote proc->result.out.d, even though
for a composite result type the other union variant proc->result.out.r is
the one that should be valid. This could result in a crash if out.r had
in fact been filled in (proc->result.is_rowtype == 1) and then somebody
later attempted to use that data; as per bug #13579 from Paweł Michalak.
Just to add insult to injury, it didn't work for RECORD results anyway,
because record_in() would refuse the case.
Fix by doing the I/O function lookup in a local PLyTypeInfo variable,
as we were doing already in PLyObject_ToComposite(). This is not a great
technique because any fn_extra data allocated by the input function will
be leaked permanently (thanks to using TopMemoryContext as fn_mcxt).
But that's a pre-existing issue that is much less serious than a crash,
so leave it to be fixed separately.
This bug would be a potential security issue, except that plpython is
only available to superusers and the crash requires coding the function
in a way that didn't work before today's patches.
Add regression test cases covering all the supported methods of converting
composite results.
Back-patch to 9.1 where the faulty coding was introduced.
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plpgsql's error location context messages ("PL/pgSQL function fn-name line
line-no at stmt-type") would misreport a CONTINUE statement as being an
EXIT, and misreport a MOVE statement as being a FETCH. These are clear
bugs that have been there a long time, so back-patch to all supported
branches.
In addition, in 9.5 and HEAD, change the description of EXECUTE from
"EXECUTE statement" to just plain EXECUTE; there seems no good reason why
this statement type should be described differently from others that have
a well-defined head keyword. And distinguish GET STACKED DIAGNOSTICS from
plain GET DIAGNOSTICS. These are a bit more of a judgment call, and also
affect existing regression-test outputs, so I did not back-patch into
stable branches.
Pavel Stehule and Tom Lane
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