postgresql/contrib
Tom Lane c168ba3112 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 11:13:29 -05:00
..
adminpack Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
auth_delay Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
auto_explain Print planning time only in EXPLAIN ANALYZE, not plain EXPLAIN. 2014-10-15 18:50:13 -04:00
btree_gin Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
btree_gist Support timezone abbreviations that sometimes change. 2014-10-16 15:22:10 -04:00
chkpass Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:11 -05:00
citext Fix citext upgrade script for disallowance of oidvector element assignment. 2014-08-28 18:21:05 -04:00
cube Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
dblink Add infrastructure to save and restore GUC values. 2014-11-24 16:37:56 -05:00
dict_int Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
dict_xsyn Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
dummy_seclabel Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
earthdistance Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
file_fdw Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
fuzzystrmatch Move the guts of our Levenshtein implementation into core. 2014-11-13 12:33:26 -05:00
hstore Switch to CRC-32C in WAL and other places. 2014-11-04 11:39:48 +02:00
intagg Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
intarray Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
isn Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
lo Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
ltree Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:11 -05:00
oid2name Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
pageinspect Add pageinspect functions for inspecting GIN indexes. 2014-11-21 11:58:07 +02:00
passwordcheck Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
pg_archivecleanup Replace a few strncmp() calls with strlcpy(). 2014-08-18 22:59:31 -04:00
pg_buffercache Make backend local tracking of buffer pins memory efficient. 2014-08-30 14:03:21 +02:00
pg_freespacemap Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
pg_prewarm Add interrupt checks to contrib/pg_prewarm. 2014-11-12 18:52:49 +01:00
pg_standby Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
pg_stat_statements Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
pg_test_fsync Avoid file descriptor leak in pg_test_fsync. 2014-11-19 12:06:24 -05:00
pg_test_timing Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
pg_trgm Fix volatility markings of some contrib I/O functions. 2014-11-05 11:34:11 -05:00
pg_upgrade pg_upgrade: prefix Unix shell script name output with "./" 2014-10-11 18:38:41 -04:00
pg_upgrade_support pg_upgrade: prevent automatic oid assignment 2014-08-25 22:19:05 -04:00
pg_xlogdump Revamp the WAL record format. 2014-11-20 18:46:41 +02:00
pgbench Add --latency-limit option to pgbench. 2014-10-13 20:50:24 +03:00
pgcrypto Loop when necessary in contrib/pgcrypto's pktreader_pull(). 2014-11-11 17:22:15 -05:00
pgrowlocks Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
pgstattuple Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
postgres_fdw Add infrastructure to save and restore GUC values. 2014-11-24 16:37:56 -05:00
seg Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
sepgsql Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
spi Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
sslinfo Make Port->ssl_in_use available, even when built with !USE_SSL 2014-11-25 09:46:11 +02:00
start-scripts doc: Reflect renaming of Mac OS X to OS X 2014-09-09 13:56:29 -04:00
tablefunc Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
tcn Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
test_decoding Fix and improve cache invalidation logic for logical decoding. 2014-11-13 20:34:31 +01:00
test_parser Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
test_shm_mq Add some noreturn attributes based on compiler recommendations 2014-08-13 22:40:48 -04:00
tsearch2 Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
unaccent Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
uuid-ossp Fix typos in some error messages thrown by extension scripts when fed to psql. 2014-08-25 18:30:37 +02:00
vacuumlo Add file version information to most installed Windows binaries. 2014-07-14 14:07:52 -04:00
worker_spi Add some noreturn attributes based on compiler recommendations 2014-08-13 22:40:48 -04:00
xml2 Free libxml2/libxslt resources in a safer order. 2014-11-27 11:13:29 -05:00
Makefile Support BSD and e2fsprogs UUID libraries alongside OSSP UUID library. 2014-05-27 19:42:08 -04:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00
contrib-global.mk Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00

README

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 "make all" and "make
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.