postgresql/contrib
Etsuro Fujita 8cfbac1492 postgres_fdw: Refuse to send FETCH FIRST WITH TIES to remote servers.
Previously, when considering LIMIT pushdown, postgres_fdw failed to
check whether the query has this clause, which led to pushing false
LIMIT clauses, causing incorrect results.

This clause has been supported since v13, so we need to do a
remote-version check before deciding that it will be safe to push such a
clause, but we do not currently have a way to do the check (without
accessing the remote server); disable pushing such a clause for now.

Oversight in commit 357889eb1.  Back-patch to v13, where that commit
added the support.

Per bug #18467 from Onder Kalaci.

Patch by Japin Li, per a suggestion from Tom Lane, with some changes to
the comments by me.  Review by Onder Kalaci, Alvaro Herrera, and me.

Discussion: https://postgr.es/m/18467-7bb89084ff03a08d%40postgresql.org
2024-06-07 17:45:00 +09:00
..
amcheck amcheck: Fixes for right page check during unique constraint check 2024-05-26 07:14:12 +03:00
auth_delay Update copyright for 2024 2024-01-03 20:49:05 -05:00
auto_explain Add EXPLAIN (MEMORY) to report planner memory consumption 2024-01-29 17:53:03 +01:00
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 Update copyright for 2024 2024-01-03 20:49:05 -05:00
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 Make libpqsrv_cancel's return const char *, not char * 2024-04-05 18:23:10 +02:00
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 Update copyright for 2024 2024-01-03 20:49:05 -05:00
file_fdw Update copyright for 2024 2024-01-03 20:49:05 -05:00
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 Use new overflow-safe integer comparison functions. 2024-02-16 14:05:36 -06:00
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 Update copyright for 2024 2024-01-03 20:49:05 -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 Stabilize test of BRIN parallel create 2024-04-17 16:14:47 +02:00
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 Update copyright for 2024 2024-01-03 20:49:05 -05:00
pg_prewarm Revise GUC names quoting in messages again 2024-05-17 11:44:26 +02:00
pg_stat_statements Revise GUC names quoting in messages again 2024-05-17 11:44:26 +02:00
pg_surgery Error message capitalisation 2024-01-18 09:35:12 +01:00
pg_trgm Use new overflow-safe integer comparison functions. 2024-02-16 14:05:36 -06:00
pg_visibility Avoid edge case in pg_visibility test with small shared_buffers 2024-03-25 20:19:43 -07:00
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 Update copyright for 2024 2024-01-03 20:49:05 -05:00
postgres_fdw postgres_fdw: Refuse to send FETCH FIRST WITH TIES to remote servers. 2024-06-07 17:45:00 +09:00
seg seg: Add test "security" in meson.build 2024-01-18 10:12:44 +09:00
sepgsql Revise GUC names quoting in messages again 2024-05-17 11:44:26 +02:00
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 Make RelationFlushRelation() work without ResourceOwner during abort 2024-06-06 18:56:28 +03:00
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 incompatibilities with libxml2 >= 2.12.0. 2024-01-29 12:06:13 -05:00
contrib-global.mk
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

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.