postgresql/contrib
Nathan Bossart 39ff056365 Allow resetting unknown custom GUCs with reserved prefixes.
Currently, ALTER DATABASE/ROLE/SYSTEM RESET [ALL] with an unknown
custom GUC with a prefix reserved by MarkGUCPrefixReserved() errors
(unless a superuser runs a RESET ALL variant).  This is problematic
for cases such as an extension library upgrade that removes a GUC.
To fix, simply make sure the relevant code paths explicitly allow
it.  Note that we require superuser or privileges on the parameter
to reset it.  This is perhaps a bit more restrictive than is
necessary, but it's not clear whether further relaxing the
requirements is safe.

Oversight in commit 88103567cb.  The ALTER SYSTEM fix is dependent
on commit 2d870b4aef, which first appeared in v17.  Unfortunately,
back-patching that commit would introduce ABI breakage, and while
that breakage seems unlikely to bother anyone, it doesn't seem
worth the risk.  Hence, the ALTER SYSTEM part of this commit is
omitted on v15 and v16.

Reported-by: Mert Alev <mert@futo.org>
Reviewed-by: Laurenz Albe <laurenz.albe@cybertec.at>
Discussion: https://postgr.es/m/18964-ba09dea8c98fccd6%40postgresql.org
Backpatch-through: 15
2025-08-01 16:52:11 -05:00
..
amcheck Merge copies of converting an XID to a FullTransactionId. 2025-01-25 11:28:18 -08:00
auth_delay Update copyright for 2024 2024-01-03 20:49:05 -05:00
auto_explain Allow resetting unknown custom GUCs with reserved prefixes. 2025-08-01 16:52:11 -05:00
basebackup_to_shell Update copyright for 2024 2024-01-03 20:49:05 -05:00
basic_archive Add built-in ERROR handling for archive callbacks. 2024-04-02 22:28:11 -05:00
bloom Clean up newlines following left parentheses 2024-11-26 17:10:07 +01:00
bool_plperl Update copyright for 2024 2024-01-03 20:49:05 -05:00
btree_gin Update copyright for 2024 2024-01-03 20:49:05 -05:00
btree_gist Revert temporal primary keys and foreign keys 2024-05-16 08:17:46 +02:00
citext Skip citext_utf8 test on Windows. 2024-05-13 07:55:58 +12:00
cube Update copyright for 2024 2024-01-03 20:49:05 -05:00
dblink Avoid resource leaks when a dblink connection fails. 2025-05-29 10:39:55 -04:00
dict_int Update copyright for 2024 2024-01-03 20:49:05 -05:00
dict_xsyn Update copyright for 2024 2024-01-03 20:49:05 -05:00
earthdistance contrib/earthdistance: Use SQL-standard function bodies. 2024-12-14 16:07:18 -05:00
file_fdw Disallow "=" in names of reloptions and foreign-data options. 2025-06-02 15:22:44 -04:00
fuzzystrmatch Update copyright for 2024 2024-01-03 20:49:05 -05:00
hstore Use new overflow-safe integer comparison functions. 2024-02-16 14:05:36 -06:00
hstore_plperl Update copyright for 2024 2024-01-03 20:49:05 -05:00
hstore_plpython Update copyright for 2024 2024-01-03 20:49:05 -05:00
intagg Update copyright for 2024 2024-01-03 20:49:05 -05:00
intarray Fix GIN's shimTriConsistentFn to not corrupt its input. 2025-04-12 12:27:46 -04:00
isn Update copyright for 2024 2024-01-03 20:49:05 -05:00
jsonb_plperl Update copyright for 2024 2024-01-03 20:49:05 -05:00
jsonb_plpython Update copyright for 2024 2024-01-03 20:49:05 -05:00
lo Repair incorrect handling of AfterTriggerSharedData.ats_modifiedcols. 2025-01-22 11:58:20 -05:00
ltree Add hash support functions and hash opclass for contrib/ltree. 2024-03-21 18:27:49 -04:00
ltree_plpython Update copyright for 2024 2024-01-03 20:49:05 -05:00
oid2name Update copyright for 2024 2024-01-03 20:49:05 -05:00
pageinspect Be more wary of corrupt data in pageinspect's heap_page_items(). 2025-04-19 16:37:42 -04:00
passwordcheck Update copyright for 2024 2024-01-03 20:49:05 -05:00
pg_buffercache Add pg_buffercache_evict() function for testing. 2024-04-08 16:23:40 +12:00
pg_freespacemap Prevent assertion failure in contrib/pg_freespacemap. 2025-03-27 13:20:23 -04:00
pg_prewarm pg_prewarm: Allow autoprewarm to use more than 1GB to dump blocks. 2025-06-06 08:18:26 -04:00
pg_stat_statements pg_stat_statements: Fix parameter number gaps in normalized queries 2025-05-29 11:26:23 +09:00
pg_surgery Error message capitalisation 2024-01-18 09:35:12 +01:00
pg_trgm Fix arrays comparison in CompareOpclassOptions() 2024-11-12 01:51:20 +02:00
pg_visibility Restore smgrtruncate() prototype in back-branches. 2025-01-08 10:43:40 +13:00
pg_walinspect Update copyright for 2024 2024-01-03 20:49:05 -05:00
pgcrypto pgcrypto: Fix incorrect argument vs PG_GETARG*() mappings 2024-02-14 08:59:05 +09:00
pgrowlocks Update copyright for 2024 2024-01-03 20:49:05 -05:00
pgstattuple Reintroduce support for sequences in pgstattuple and pageinspect. 2024-09-12 16:31:29 -05:00
postgres_fdw Fix memory leakage in postgres_fdw's DirectModify code path. 2025-05-30 13:45:41 -04:00
seg Use generateClonedIndexStmt to propagate CREATE INDEX to partitions. 2024-10-05 14:46:44 -04:00
sepgsql meson: Fix sepgsql installation 2025-01-24 10:26:59 +01:00
spi Update copyright for 2024 2024-01-03 20:49:05 -05:00
sslinfo Revert "Add notBefore and notAfter to SSL cert info display" 2024-03-22 22:58:41 +01:00
start-scripts Remove gratuitous references to postmaster program 2023-01-26 10:48:32 +01:00
tablefunc Make contrib/tablefunc crosstab() also check typmod 2024-03-09 17:32:32 -05:00
tcn Update copyright for 2024 2024-01-03 20:49:05 -05:00
test_decoding Fix re-distributing previously distributed invalidation messages during logical decoding. 2025-06-16 17:35:58 -07:00
tsm_system_rows Update copyright for 2024 2024-01-03 20:49:05 -05:00
tsm_system_time Update copyright for 2024 2024-01-03 20:49:05 -05:00
unaccent Update copyright for 2024 2024-01-03 20:49:05 -05:00
uuid-ossp Make the order of the header file includes consistent 2024-03-13 15:07:00 +01:00
vacuumlo Update copyright for 2024 2024-01-03 20:49:05 -05:00
xml2 Fix incompatibility with libxml2 >= 2.14 2025-07-07 08:54:37 +09:00
contrib-global.mk Respect TEMP_CONFIG when pg_regress_check and friends are called 2016-02-27 12:28:21 -05:00
Makefile Remove the adminpack contrib extension 2024-03-04 12:39:22 +01:00
meson.build Remove the adminpack contrib extension 2024-03-04 12:39:22 +01:00
README Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00

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 "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.