postgresql/contrib
Etsuro Fujita 2bb84ea7ef Fix EvalPlanQual handling of foreign/custom joins in ExecScanFetch.
If inside an EPQ recheck, ExecScanFetch would run the recheck method
function for foreign/custom joins even if they aren't descendant nodes
in the EPQ recheck plan tree, which is problematic at least in the
foreign-join case, because such a foreign join isn't guaranteed to have
an alternative local-join plan required for running the recheck method
function; in the postgres_fdw case this could lead to a segmentation
fault or an assert failure in an assert-enabled build when running the
recheck method function.

Even if inside an EPQ recheck, any scan nodes that aren't descendant
ones in the EPQ recheck plan tree should be normally processed by using
the access method function; fix by modifying ExecScanFetch so that if
inside an EPQ recheck, it runs the recheck method function for
foreign/custom joins that are descendant nodes in the EPQ recheck plan
tree as before and runs the access method function for foreign/custom
joins that aren't.

This fix also adds to postgres_fdw an isolation test for an EPQ recheck
that caused issues stated above.

Oversight in commit 385f337c9.

Reported-by: Kristian Lejao <kristianlejao@gmail.com>
Author: Masahiko Sawada <sawada.mshk@gmail.com>
Co-authored-by: Etsuro Fujita <etsuro.fujita@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Etsuro Fujita <etsuro.fujita@gmail.com>
Discussion: https://postgr.es/m/CAD21AoBpo6Gx55FBOW+9s5X=nUw3Xpq64v35fpDEKsTERnc4TQ@mail.gmail.com
Backpatch-through: 13
2025-10-15 17:15:02 +09:00
..
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 incorrect lack of Datum conversion in _int_matchsel() 2025-08-08 12:10:45 +02:00
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 CHECK_FOR_INTERRUPTS in contrib/pg_buffercache functions. 2025-08-19 12:11:37 -07:00
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 Put "excludeOnly" GIN scan keys at the end of the scankey array. 2025-08-26 12:08:57 -04:00
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 Add regression expected-files for older OpenSSL in FIPS mode. 2025-09-16 14:36:51 -04:00
pgrowlocks Update copyright for 2024 2024-01-03 20:49:05 -05:00
pgstattuple pgstattuple: Improve reports generated for indexes (hash, gist, btree) 2025-10-02 11:09:12 +09:00
postgres_fdw Fix EvalPlanQual handling of foreign/custom joins in ExecScanFetch. 2025-10-15 17:15:02 +09:00
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.