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This was an oversight in commit b60653bc0b75b7f3b5dda0a2968a22129aafb2b2.
Also, fix a typo spotted by Thom Brown.
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Since PostgreSQL 9.0, we've emitted a warning message when an operator
named => is created, because the SQL standard now reserves that token
for another use. But we've also shipped such an operator with hstore.
Use of the function hstore(text, text) has been recommended in
preference to =>(text, text). Per discussion, it's now time to take
the next step and stop shipping the operator. This will allow us to
prohibit the use of => as an operator name in a future release if and
when we wish to support the SQL standard use of this token.
The release notes should mention this incompatibility.
Patch by me, reviewed by David Wheeler, Dimitri Fontaine and Tom Lane.
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Make it use t_isspace() to identify whitespace, rather than relying on
sscanf which is known to get it wrong on some platform/locale combinations.
Get rid of fixed-size buffers. Make it actually continue to parse the file
after ignoring a line with untranslatable characters, as was obviously
intended.
The first of these issues is per gripe from J Smith, though not exactly
either of his proposed patches.
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Kevin Grittner
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Both dict_int and dict_xsyn were blithely assuming that whatever memory
palloc gives back will be pre-zeroed. This would typically work for
just about long enough to run their regression tests, and no longer :-(.
The pre-9.0 code in dict_xsyn was even lamer than that, as it would
happily give back a pointer to the result of palloc(0), encouraging
its caller to access off the end of memory. Again, this would just
barely fail to fail as long as memory contained nothing but zeroes.
Per a report from Rodrigo Hjort that code based on these examples
didn't work reliably.
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cleanly handle old/new database mismatches.
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These are not touched by pgindent, so clean them up a bit manually.
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'postgres' database.
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new cluster. vacuumdb, used by pg_upgrade, still has this dependency.
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in the old cluster.
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We have seen one too many reports of people trying to use 9.1 extension
files in the old-fashioned way of sourcing them in psql. Not only does
that usually not work (due to failure to substitute for MODULE_PATHNAME
and/or @extschema@), but if it did work they'd get a collection of loose
objects not an extension. To prevent this, insert an \echo ... \quit
line that prints a suitable error message into each extension script file,
and teach commands/extension.c to ignore lines starting with \echo.
That should not only prevent any adverse consequences of loading a script
file the wrong way, but make it crystal clear to users that they need to
do it differently now.
Tom Lane, following an idea of Andrew Dunstan's. Back-patch into 9.1
... there is not going to be much value in this if we wait till 9.2.
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document its use for config-only directory installs.
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directory, for config-only directory installs. Only works for PG 9.2+
servers.
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failures.
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A similar problem for pgstattuple() was fixed in April of 2010 by commit
33065ef8bc52253ae855bc959576e52d8a28ba06, but pgstatindex() seems to have
been overlooked.
Back-patch all the way, as with that commit, though not to 7.4 through
8.1, since those are now EOL.
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Arrange for any problems with pre-existing settings to be reported as
WARNING not ERROR, so that we don't undesirably abort the loading of the
incoming add-on module. The bad setting is just discarded, as though it
had never been applied at all. (This requires a change in the API of
set_config_option. After some thought I decided the most potentially
useful addition was to allow callers to just pass in a desired elevel.)
Arrange to restore the complete stacked state of the variable, rather than
cheesily reinstalling only the active value. This ensures that custom GUCs
will behave unsurprisingly even when the module loading operation occurs
within nested subtransactions that have changed the active value. Since a
module load could occur as a result of, eg, a PL function call, this is not
an unlikely scenario.
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Since gtrgm_penalty() is usually called many times in a row with the same
"newval" (to determine which item on an index page newval fits into best),
the makesign() calculation is repetitious. It's expensive enough to make
it worth caching the result, so do so. On my machine this is good for
more than a 40% savings in the time needed to build a trigram index on
/usr/share/dict/words. This is all per a suggestion of Heikki's.
In passing, make some mostly-cosmetic improvements in the caching logic in
the other functions in this file that rely on caching info in fn_extra.
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oid on 8.4, modify the toast name comparison test to only apply to old
9.0+ servers. (The test was previously 8.4+.)
Backpatch to 9.1.X.
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Because these tests require root privileges, not to mention invasive
changes to the security configuration of the host system, it's not
reasonable for them to be invoked by a regular "make check" or "make
installcheck". Instead, dike out the Makefile's knowledge of the tests,
and change chkselinuxenv (now renamed "test_sepgsql") into a script that
verifies the environment is workable and then runs the tests. It's
expected that test_sepgsql will only be run manually.
While at it, do some cleanup in the error checking in the script, and
do some wordsmithing in the documentation.
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Robert Haas and KaiGai Kohei
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This is still a bit of a hack, but it's better than the old way, for sure.
KaiGai Kohei, with one change by me to make it compile
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This is implemented as a per-column boolean option, rather than trying
to match COPY's convention of a single option listing the column names.
Shigeru Hanada, reviewed by KaiGai Kohei
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Rewrite plancache.c so that a "cached plan" (which is rather a misnomer
at this point) can support generation of custom, parameter-value-dependent
plans, and can make an intelligent choice between using custom plans and
the traditional generic-plan approach. The specific choice algorithm
implemented here can probably be improved in future, but this commit is
all about getting the mechanism in place, not the policy.
In addition, restructure the API to greatly reduce the amount of extraneous
data copying needed. The main compromise needed to make that possible was
to split the initial creation of a CachedPlanSource into two steps. It's
worth noting in particular that SPI_saveplan is now deprecated in favor of
SPI_keepplan, which accomplishes the same end result with zero data
copying, and no need to then spend even more cycles throwing away the
original SPIPlan. The risk of long-term memory leaks while manipulating
SPIPlans has also been greatly reduced. Most of this improvement is based
on use of the recently-added MemoryContextSetParent primitive.
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This addresses only those cases that are easy to fix by adding or
moving a const qualifier or removing an unnecessary cast. There are
many more complicated cases remaining.
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Add __attribute__ decorations for printf format checking to the places that
were missing them. Fix the resulting warnings. Add
-Wmissing-format-attribute to the standard set of warnings for GCC, so these
don't happen again.
The warning fixes here are relatively harmless. The one serious problem
discovered by this was already committed earlier in
cf15fb5cabfbc71e07be23cfbc813daee6c5014f.
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As per my recent proposal, this refactors things so that these typedefs and
macros are available in a header that can be included in frontend-ish code.
I also changed various headers that were undesirably including
utils/timestamp.h to include datatype/timestamp.h instead. Unsurprisingly,
this showed that half the system was getting utils/timestamp.h by way of
xlog.h.
No actual code changes here, just header refactoring.
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because its internal format was changed in 8.4.
Backpatch to 9.0 and 9.1.
Report by depesz, diagnosis by Tom.
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walsender.h should depend on xlog.h, not vice versa. (Actually, the
inclusion was circular until a couple hours ago, which was even sillier;
but Bruce broke it in the expedient rather than logically correct
direction.) Because of that poor decision, plus blind application of
pgrminclude, we had a situation where half the system was depending on
xlog.h to include such unrelated stuff as array.h and guc.h. Clean up
the header inclusion, and manually revert a lot of what pgrminclude had
done so things build again.
This episode reinforces my feeling that pgrminclude should not be run
without adult supervision. Inclusion changes in header files in particular
need to be reviewed with great care. More generally, it'd be good if we
had a clearer notion of module layering to dictate which headers can sanely
include which others ... but that's a big task for another day.
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KaiGai Kohei
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Don't test whether the number of labels is numerically equal to zero;
count(*) isn't going return zero anyway, and the current coding blows
up if it returns an empty string or an error.
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builfarm member.
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There's no reason for this test to use the undocumented pg_prepared_xact()
function, when it can use the stable API pg_prepared_xacts instead.
Fixes breakage against 8.3, as reported by Justin Arnold.
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include dependencies.
Modify pgcompinclude to skip a common fcinfo error.
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remove from local *.h files.
Per suggestion from Alvaro.
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introduced recently when trying to filter out temp tables.
Backpatch to 9.0 and 9.1.
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This is recommended in the flex manual, and there seems no good reason
not to use it everywhere.
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This is mainly to prove that the NaN fix actually works cross-platform.
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For an empty index, the pgstatindex() function would compute 0.0/0.0 for
its avg_leaf_density and leaf_fragmentation outputs. On machines that
follow the IEEE float arithmetic standard with any care, that results in
a NaN. However, per report from Rushabh Lathia, Microsoft couldn't
manage to get this right, so you'd get a bizarre error on Windows.
Fix by forcing the results to be NaN explicitly, rather than relying on
the division operator to give that or the snprintf function to print it
correctly. I have some doubts that this is really the most useful
definition, but it seems better to remain backward-compatible with
those platforms for which the behavior wasn't completely broken.
Back-patch to 8.2, since the code is like that in all current releases.
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The previous coding resulted in contrib modules unintentionally overriding
the use of CONTRIB_TESTDB. There seems no particularly good reason to
allow that (after all, the makefile can set CONTRIB_TESTDB if that's really
what it intends).
In passing, document REGRESS_OPTS where the other pgxs.mk options are
documented.
Back-patch to 9.1 --- in prior versions, there were no cases of contrib
modules setting REGRESS_OPTS without including the --dbname switch, so
while the coding was fragile there was no actual bug.
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We'll have to settle for just listing the extensions' data types,
since function arguments seem to sort differently in different locales.
Per buildfarm results.
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When we implemented extensions, we made findDependentObjects() treat
EXTENSION dependency links similarly to INTERNAL links. However, that
logic contained an implicit assumption that an object could have at most
one INTERNAL dependency, so it did not work correctly for objects having
both INTERNAL and DEPENDENCY links. This led to failure to drop some
extension member objects when dropping the extension. Furthermore, we'd
never actually exercised the case of recursing to an internally-referenced
(owning) object from anything other than a NORMAL dependency, and it turns
out that passing the incoming dependency's flags to the owning object is
the Wrong Thing. This led to sometimes dropping a whole extension silently
when we should have rejected the drop command for lack of CASCADE.
Since we obviously were under-testing extension drop scenarios, add some
regression test cases. Unfortunately, such test cases require some
extensions (duh), so we can't test for problems in the core regression
tests. I chose to add them to the earthdistance contrib module, which is
a good test case because it has a dependency on the cube contrib module.
Back-patch to 9.1. Arguably these are pre-existing bugs in INTERNAL
dependency handling, but since it appears that the cases can never arise
pre-9.1, I'll refrain from back-patching the logic changes further than
that.
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Eliminate dependencies on "which", as we don't really need that to be
installed for proper testing. Don't number the tests, as that increases
the footprint of every patch that wants to add or remove tests. Make
the test output more informative, so that it's a bit easier to see what
went right (or wrong). Spelling and grammar improvements.
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contrib/xml2 can get by without libxslt; the relevant features just
won't work. But if doesn't have libxml2, or if sepgsql doesn't have
libselinux, the link succeeds but the module then fails to work at load
time. To avoid that, link the require libraries unconditionally, so
that it will be clear at link-time that there is a problem.
Per discussion with Tom Lane and KaiGai Kohei.
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