postgresql/contrib
Tom Lane c393847a1f Free libxml2/libxslt resources in a safer order.
Mark Simonetti reported that libxslt sometimes crashes for him, and that
swapping xslt_process's object-freeing calls around to do them in reverse
order of creation seemed to fix it.  I've not reproduced the crash, but
valgrind clearly shows a reference to already-freed memory, which is
consistent with the idea that shutdown of the xsltTransformContext is
trying to reference the already-freed stylesheet or input document.
With this patch, valgrind is no longer unhappy.

I have an inquiry in to see if this is a libxslt bug or if we're just
abusing the library; but even if it's a library bug, we'd want to adjust
our code so it doesn't fail with unpatched libraries.

Back-patch to all supported branches, because we've been doing this in
the wrong(?) order for a long time.
2014-11-27 11:12:51 -05:00
..
adminpack Update copyrights for 2013 2013-01-01 17:15:01 -05:00
auth_delay Limit values of archive_timeout, post_auth_delay, auth_delay.milliseconds. 2012-11-18 17:15:06 -05:00
auto_explain Fix failure of contrib/auto_explain to print per-node timing information. 2014-09-19 13:19:02 -04:00
btree_gin Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
btree_gist Support timezone abbreviations that sometimes change. 2014-10-16 15:22:17 -04:00
chkpass Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:19 -05:00
citext Fix citext upgrade script for disallowance of oidvector element assignment. 2014-08-28 18:21:14 -04:00
cube Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
dblink Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
dict_int Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
dict_xsyn Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
dummy_seclabel Update copyrights for 2013 2013-01-01 17:15:01 -05:00
earthdistance Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
file_fdw Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
fuzzystrmatch Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
hstore Avoid integer overflow and buffer overrun in hstore_to_json(). 2014-11-04 16:54:59 -05:00
intagg Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
intarray Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
isn Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
lo Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
ltree Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:19 -05:00
oid2name Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
pageinspect Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
passwordcheck Update copyrights for 2013 2013-01-01 17:15:01 -05:00
pg_archivecleanup Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
pg_buffercache Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
pg_freespacemap Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
pg_standby Properly check for readdir/closedir() failures 2014-03-21 13:45:11 -04:00
pg_stat_statements Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
pg_test_fsync Avoid file descriptor leak in pg_test_fsync. 2014-11-19 12:14:22 -05:00
pg_test_timing pgindent run for release 9.3 2013-05-29 16:58:43 -04:00
pg_trgm Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:19 -05:00
pg_upgrade Add missing #include 2014-11-03 19:30:50 +02:00
pg_upgrade_support Update copyrights for 2013 2013-01-01 17:15:01 -05:00
pg_xlogdump Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
pgbench Fix typo in error message. 2014-10-02 15:52:23 +03:00
pgcrypto Loop when necessary in contrib/pgcrypto's pktreader_pull(). 2014-11-11 17:22:38 -05:00
pgrowlocks Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
pgstattuple Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
postgres_fdw Fix mishandling of system columns in FDW queries. 2014-11-22 16:01:12 -05:00
seg Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
sepgsql Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
spi Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
sslinfo Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
start-scripts Remove dead URL mention in OSX startup script 2013-09-04 17:04:57 -04:00
tablefunc Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
tcn Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
test_parser Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
tsearch2 Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
unaccent Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
uuid-ossp Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:46 +02:00
vacuumlo pgindent run for release 9.3 2013-05-29 16:58:43 -04:00
worker_spi Remove tabs after spaces in C comments 2014-05-06 11:26:28 -04:00
xml2 Free libxml2/libxslt resources in a safer order. 2014-11-27 11:12:51 -05:00
contrib-global.mk Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
Makefile contrib/Makefile also needs updated 2013-02-22 18:56:42 -03:00
README Update contrib/README 2012-04-14 09:29:54 +03:00

The PostgreSQL contrib tree
---------------------------

This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree.  This does not preclude their
usefulness.

User documentation for each module appears in the main SGML
documentation.

When building from the source distribution, these modules are not
built automatically, unless you build the "world" target.  You can
also build and install them all by running "gmake all" and "gmake
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.

Some directories supply new user-defined functions, operators, or
types.  To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command.  In a fresh database,
you can simply do

    CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this
procedure.