postgresql/contrib/postgres_fdw
Etsuro Fujita ce88170227 Disallow collecting transition tuples from child foreign tables.
Commit 9e6104c66 disallowed transition tables on foreign tables, but
failed to account for cases where a foreign table is a child table of a
partitioned/inherited table on which transition tables exist, leading to
incorrect transition tuples collected from such foreign tables for
queries on the parent table triggering transition capture.  This
occurred not only for inherited UPDATE/DELETE but for partitioned INSERT
later supported by commit 3d956d956, which should have handled it at
least for the INSERT case, but didn't.

To fix, modify ExecAR*Triggers to throw an error if the given relation
is a foreign table requesting transition capture.  Also, this commit
fixes make_modifytable so that in case of an inherited UPDATE/DELETE
triggering transition capture, FDWs choose normal operations to modify
child foreign tables, not DirectModify; which is needed because they
would otherwise skip the calls to ExecAR*Triggers at execution, causing
unexpected behavior.

Author: Etsuro Fujita <etsuro.fujita@gmail.com>
Reviewed-by: Amit Langote <amitlangote09@gmail.com>
Discussion: https://postgr.es/m/CAPmGK14QJYikKzBDCe3jMbpGENnQ7popFmbEgm-XTNuk55oyHg%40mail.gmail.com
Backpatch-through: 13
2025-08-08 10:50:01 +09:00
..
expected Disallow collecting transition tuples from child foreign tables. 2025-08-08 10:50:01 +09:00
sql Disallow collecting transition tuples from child foreign tables. 2025-08-08 10:50:01 +09:00
t Fix typos and grammar in the code 2025-04-19 19:17:42 +09:00
.gitignore Add postgres_fdw contrib module. 2013-02-21 05:27:16 -05:00
connection.c Revert "postgres_fdw: Inherit the local transaction's access/deferrable modes." 2025-06-08 17:30:00 +09:00
deparse.c Convert PathKey to use CompareType 2025-04-04 11:22:20 +02:00
Makefile postgres_fdw: SCRAM authentication pass-through 2025-01-15 17:58:05 +01:00
meson.build postgres_fdw: SCRAM authentication pass-through 2025-01-15 17:58:05 +01:00
option.c Remove INT64_HEX_FORMAT and UINT64_HEX_FORMAT 2025-08-06 10:58:06 +02:00
postgres_fdw--1.0--1.1.sql postgres_fdw: Add functions to discard cached connections. 2021-01-26 15:35:54 +09:00
postgres_fdw--1.0.sql Add postgres_fdw contrib module. 2013-02-21 05:27:16 -05:00
postgres_fdw--1.1--1.2.sql postgres_fdw: Extend postgres_fdw_get_connections to return remote backend PID. 2025-03-03 08:51:30 +09:00
postgres_fdw.c Fix memory leakage in postgres_fdw's DirectModify code path. 2025-05-30 13:45:41 -04:00
postgres_fdw.control postgres_fdw: Add "used_in_xact" column to postgres_fdw_get_connections(). 2024-07-26 22:15:51 +09:00
postgres_fdw.h Update copyright for 2025 2025-01-01 11:21:55 -05:00
shippable.c Update copyright for 2025 2025-01-01 11:21:55 -05:00