postgres/contrib
Tom Lane fdb60ca83d Don't try to read a multi-GB pg_stat_statements file in one call.
Windows fails on a request to read() more than INT_MAX bytes,
and perhaps other platforms could have similar issues.  Let's
adjust this code to read at most 1GB per call.

(One would not have thought the file could get that big, but now
we have a field report of trouble, so it can.  We likely ought to
add some mechanism to limit the size of the query-texts file
separately from the size of the hash table.  That is not this
patch, though.)

Per bug #17254 from Yusuke Egashira.  It's been like this for
awhile, so back-patch to all supported branches.

Discussion: https://postgr.es/m/17254-a926c89dc03375c2@postgresql.org
2021-10-31 19:13:48 -04:00
..
adminpack Add missing errcode() in a few ereport calls. 2020-03-18 10:08:56 +05:30
auth_delay Update copyright for 2016 2016-01-02 14:19:48 -05:00
auto_explain Fix ancient memory leak in contrib/auto_explain. 2021-02-02 13:49:08 -05:00
bloom Fix failure with lock mode used for custom relation options 2019-09-25 10:08:43 +09:00
btree_gin Fix failure of btree_gin indexscans with "char" type and </<= operators. 2021-08-10 18:10:30 -04:00
btree_gist Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
chkpass Avoid returning undefined bytes in chkpass_in(). 2015-02-14 12:20:56 -05:00
citext Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
cube Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
dblink Initialize dblink remoteConn struct in all cases 2020-05-28 13:45:11 -04:00
dict_int Ensure maxlen is at leat 1 in dict_int 2019-12-03 18:42:25 +01:00
dict_xsyn Update copyright for 2016 2016-01-02 13:33:40 -05:00
earthdistance Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
file_fdw Ensure that foreign scans with lateral refs are planned correctly. 2019-02-07 13:11:16 -05:00
fuzzystrmatch Update fuzzystrmatch extension for parallel query. 2016-06-07 11:26:41 -04:00
hstore Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
hstore_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
hstore_plpython Fix broken ruleutils support for function TRANSFORM clauses. 2021-01-25 13:03:12 -05:00
intagg Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
intarray Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
isn Fix typos in comments. 2017-02-06 11:34:15 +02:00
lo Fix bogus CALLED_AS_TRIGGER() defenses. 2020-04-03 11:24:56 -04:00
ltree Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
ltree_plpython Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
oid2name Report the true database name on connection errors 2021-01-26 16:42:13 -03:00
pageinspect Fix tuple_data_split() to not open a relation without any lock. 2018-10-01 11:51:07 -04:00
passwordcheck Fix handling of previous password hooks in passwordcheck 2019-08-01 09:38:20 +09:00
pg_buffercache pg_buffercache: Allow huge allocations. 2016-09-15 09:30:37 -04:00
pg_freespacemap Update pg_freespacemap extension for parallel query. 2016-06-09 17:18:16 -04:00
pg_prewarm Avoid using potentially-under-aligned page buffers. 2018-09-01 15:27:13 -04:00
pg_standby Fix new warnings from GCC 7 2017-05-16 08:52:39 -04:00
pg_stat_statements Don't try to read a multi-GB pg_stat_statements file in one call. 2021-10-31 19:13:48 -04:00
pg_trgm pg_trgm: fix crash in 2-item picksplit 2020-11-12 14:57:13 +00:00
pg_visibility Fix bugs in contrib/pg_visibility. 2016-10-01 16:32:55 -04:00
pgcrypto pgcrypto: avoid name conflicts with OpenSSL in one more case. 2021-06-23 19:24:36 -04:00
pgrowlocks Avoid holding a directory FD open across assorted SRF calls. 2020-03-16 21:05:56 -04:00
pgstattuple Minor fixes in contrib installation scripts. 2016-06-14 10:47:06 -04:00
postgres_fdw postgres_fdw: Move comments about elog level in (sub)abort cleanup. 2021-10-13 19:00:09 +09:00
seg Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
sepgsql Fix cache reference leak in contrib/sepgsql. 2020-04-16 14:45:54 -04:00
spi Prevent accidental linking of system-supplied copies of libpq.so etc. 2018-07-09 17:23:31 -04:00
sslinfo Support OpenSSL 1.1.0. 2016-09-15 12:55:38 +03:00
start-scripts Provide modern examples of how to auto-start Postgres on macOS. 2017-11-17 12:47:21 -05:00
tablefunc Disallow null category in crosstab_hash 2019-12-23 13:33:57 -05:00
tcn Revert CREATE INDEX ... INCLUDING ... 2016-04-08 21:52:13 +03:00
test_decoding Improve display of query results in isolation tests. 2021-06-23 11:12:32 -04:00
tsearch2 Make contrib modules' installation scripts more secure. 2020-08-10 10:44:43 -04:00
tsm_system_rows Update copyright for 2016 2016-01-02 13:33:40 -05:00
tsm_system_time Update copyright for 2016 2016-01-02 13:33:40 -05:00
unaccent Make contrib/unaccent's unaccent() function work when not in search path. 2018-09-06 10:49:45 -04:00
uuid-ossp Give a useful error message if uuid-ossp is built without preconfiguration. 2016-12-22 11:19:13 -05:00
vacuumlo Report the true database name on connection errors 2021-01-26 16:42:13 -03:00
xml2 Fix typos in comments. 2017-02-06 11:34:15 +02:00
Makefile Bloom index contrib module 2016-04-01 16:42:24 +03:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00

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.