postgresql/contrib
Robert Haas cff440d368 pg_stat_statements: Widen query IDs from 32 bits to 64 bits.
This takes advantage of the infrastructure introduced by commit
81c5e46c49 to greatly reduce the
likelihood that two different queries will end up with the same query
ID.  It's still possible, of course, but whereas before it the chances
of a collision reached 25% around 50,000 queries, it will now take
more than 3 billion queries.

Backward incompatibility: Because the type exposed at the SQL level is
int8, users may now see negative query IDs in the pg_stat_statements
view (and also, query IDs more than 4 billion, which was the old
limit).

Patch by me, reviewed by Michael Paquier and Peter Geoghegan.

Discussion: http://postgr.es/m/CA+TgmobG_Kp4cBKFmsznUAaM1GWW6hhRNiZC0KjRMOOeYnz5Yw@mail.gmail.com
2017-10-11 19:52:46 -04:00
..
adminpack adminpack: Add test suite 2017-09-14 22:22:59 -04:00
amcheck Minor code-cleanliness improvements for btree. 2017-09-18 16:36:28 -04:00
auth_delay Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
auto_explain Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
bloom Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
btree_gin Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
btree_gist Extend & revamp pg_bswap.h infrastructure. 2017-09-29 17:24:39 -07:00
citext Disable multi-byte citext tests 2017-09-19 15:31:37 -04:00
cube Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
dblink Remove unnecessary parentheses in return statements 2017-09-05 14:52:55 -04:00
dict_int Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
dict_xsyn Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
earthdistance Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
file_fdw Even if some partitions are foreign, allow tuple routing. 2017-09-07 10:58:21 -04:00
fuzzystrmatch fuzzystrmatch: Add test suite 2017-09-14 22:22:59 -04:00
hstore Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
hstore_plperl Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
hstore_plpython Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
intagg Schema-qualify some references to regprocedure. 2016-06-10 10:41:58 -04:00
intarray Remove unnecessary parentheses in return statements 2017-09-05 14:52:55 -04:00
isn isn: Fix debug code 2017-09-14 22:23:00 -04:00
lo lo: Add test suite 2017-09-14 22:22:59 -04:00
ltree Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
ltree_plpython Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent. 2017-09-18 15:21:23 -04:00
oid2name Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
pageinspect Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n). 2017-08-20 11:19:07 -07:00
passwordcheck passwordcheck: Add test suite 2017-09-14 22:23:00 -04:00
pg_buffercache Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
pg_freespacemap Default monitoring roles 2017-03-30 14:18:53 -04:00
pg_prewarm Add background worker type 2017-09-29 11:08:24 -04:00
pg_standby Fix assorted infelicities in new SetWALSegSize() function. 2017-09-24 12:05:06 -04:00
pg_stat_statements pg_stat_statements: Widen query IDs from 32 bits to 64 bits. 2017-10-11 19:52:46 -04:00
pg_trgm Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
pg_visibility Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
pgcrypto Replace most usages of ntoh[ls] and hton[sl] with pg_bswap.h. 2017-10-01 15:36:14 -07:00
pgrowlocks Teach pgrowlocks to check relkind before scanning 2017-06-21 23:19:13 -04:00
pgstattuple Minor code-cleanliness improvements for btree. 2017-09-18 16:36:28 -04:00
postgres_fdw Basic partition-wise join functionality. 2017-10-06 11:11:10 -04:00
seg Update contrib/seg for new scalarlesel/scalargesel selectivity functions. 2017-09-13 11:54:55 -04:00
sepgsql Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
spi Document and use SPI_result_code_string() 2017-10-04 22:14:21 -04:00
sslinfo Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
start-scripts Fix typos in comments. 2017-02-06 11:33:58 +02:00
tablefunc Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n). 2017-08-20 11:19:07 -07:00
tcn Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n). 2017-08-20 11:19:07 -07:00
test_decoding Fix crash when logical decoding is invoked from a PL function. 2017-10-06 19:18:58 -04:00
tsm_system_rows Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
tsm_system_time Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
unaccent Extend the default rules file for contrib/unaccent with Vietnamese letters. 2017-08-16 16:51:56 -04:00
uuid-ossp Replace most usages of ntoh[ls] and hton[sl] with pg_bswap.h. 2017-10-01 15:36:14 -07:00
vacuumlo Initial pgindent run with pg_bsd_indent version 2.0. 2017-06-21 14:39:04 -04:00
xml2 Phase 3 of pgindent updates. 2017-06-21 15:35:54 -04:00
Makefile Remove contrib/chkpass 2017-09-22 11:49:48 -04:00
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.