postgresql/contrib
Amit Kapila 7db0cde6b5 Revert "Avoid the creation of the free space map for small heap relations".
This feature was using a process local map to track the first few blocks
in the relation.  The map was reset each time we get the block with enough
freespace.  It was discussed that it would be better to track this map on
a per-relation basis in relcache and then invalidate the same whenever
vacuum frees up some space in the page or when FSM is created.  The new
design would be better both in terms of API design and performance.

List of commits reverted, in reverse chronological order:

06c8a5090e  Improve code comments in b0eaa4c51b.
13e8643bfc  During pg_upgrade, conditionally skip transfer of FSMs.
6f918159a9  Add more tests for FSM.
9c32e4c350  Clear the local map when not used.
29d108cdec  Update the documentation for FSM behavior..
08ecdfe7e5  Make FSM test portable.
b0eaa4c51b  Avoid creation of the free space map for small heap relations.

Discussion: https://postgr.es/m/20190416180452.3pm6uegx54iitbt5@alap3.anarazel.de
2019-05-07 09:30:24 +05:30
..
adminpack Update copyright for 2019 2019-01-02 12:44:25 -05:00
amcheck Sanitize line pointers within contrib/amcheck. 2019-04-25 12:50:37 -07:00
auth_delay Update copyright for 2019 2019-01-02 12:44:25 -05:00
auto_explain Add SETTINGS option to EXPLAIN, to print modified settings. 2019-04-04 00:04:31 +02:00
bloom Report progress of CREATE INDEX operations 2019-04-02 15:18:08 -03:00
btree_gin Provide separate header file for built-in float types 2018-07-29 03:30:48 +02:00
btree_gist Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
citext Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
cube Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
dblink Initialize structure at declaration 2019-03-25 09:36:58 +01:00
dict_int Update copyright for 2019 2019-01-02 12:44:25 -05:00
dict_xsyn Update copyright for 2019 2019-01-02 12:44:25 -05:00
earthdistance Fix earthdistance test suite function name typo. 2018-07-29 12:02:07 -07:00
file_fdw file_fdw: Fix for generated columns 2019-04-04 09:24:48 +02:00
fuzzystrmatch Update copyright for 2019 2019-01-02 12:44:25 -05:00
hstore Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
hstore_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
hstore_plpython Avoid Python memory leaks in hstore_plpython and jsonb_plpython. 2019-04-06 17:54:29 -04:00
intagg
intarray Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
isn Update copyright for 2019 2019-01-02 12:44:25 -05:00
jsonb_plperl Still further rethinking of build changes for macOS Mojave. 2018-10-18 14:55:23 -04:00
jsonb_plpython Avoid Python memory leaks in hstore_plpython and jsonb_plpython. 2019-04-06 17:54:29 -04:00
lo
ltree Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
ltree_plpython Fix out-of-tree build for transform modules. 2018-09-16 18:46:45 +01:00
oid2name Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00
pageinspect Revert "Avoid the creation of the free space map for small heap relations". 2019-05-07 09:30:24 +05:30
passwordcheck Update copyright for 2019 2019-01-02 12:44:25 -05:00
pg_buffercache Remove WITH OIDS support, change oid catalog column visibility. 2018-11-20 16:00:17 -08:00
pg_freespacemap Replace heapam.h includes with {table, relation}.h where applicable. 2019-01-21 10:51:37 -08:00
pg_prewarm Don't auto-restart per-database autoprewarm workers. 2019-03-18 15:22:42 -04:00
pg_standby Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00
pg_stat_statements Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
pg_trgm Make use of compiler builtins and/or assembly for CLZ, CTZ, POPCNT. 2019-02-15 23:22:33 -05:00
pg_visibility Move remaining code from tqual.[ch] to heapam.h / heapam_visibility.c. 2019-01-21 17:07:10 -08:00
pgcrypto Suppress compiler warning in non-SSL, non-assert builds. 2019-05-03 21:56:46 -07:00
pgrowlocks Only allow heap in a number of contrib modules. 2019-04-01 14:57:21 -07:00
pgstattuple Revert "Avoid the creation of the free space map for small heap relations". 2019-05-07 09:30:24 +05:30
postgres_fdw Avoid postgres_fdw crash for a targetlist entry that's just a Param. 2019-04-27 13:15:54 -04:00
seg Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
sepgsql Move hash_any prototype from access/hash.h to utils/hashutils.h 2019-03-11 13:17:50 -03:00
spi Fix more strcmp() calls using boolean-like comparisons for result checks 2019-04-12 10:16:49 +09:00
sslinfo
start-scripts Remove contrib/start-scripts/osx/. 2017-11-17 12:53:20 -05:00
tablefunc Switch some palloc/memset calls to palloc0 2019-03-27 12:02:50 +09:00
tcn Update copyright for 2019 2019-01-02 12:44:25 -05:00
test_decoding Fix potential assertion failure when reindexing a pg_class index. 2019-04-29 19:42:08 -07:00
tsm_system_rows tableam: sample scan. 2019-03-31 18:37:57 -07:00
tsm_system_time tableam: sample scan. 2019-03-31 18:37:57 -07:00
unaccent Add combining characters to unaccent.rules. 2019-02-01 15:23:01 +01:00
uuid-ossp Update copyright for 2019 2019-01-02 12:44:25 -05:00
vacuumlo Avoid double-free in vacuumlo error path. 2019-03-24 15:13:20 -04:00
xml2
contrib-global.mk
Makefile Transforms for jsonb to PL/Perl 2018-04-03 09:47:18 -04:00
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.