Tom Lane 30a35bca3f Fix crash in postgres_fdw for provably-empty remote UPDATE/DELETE. ...

In 86dc90056, I'd written find_modifytable_subplan with the assumption
that if the immediate child of a ModifyTable is a Result, it must be
a projecting Result with a subplan.  However, if the UPDATE or DELETE
has a provably-constant-false WHERE clause, that's not so: we'll
generate a dummy subplan with a childless Result.  Add the missing
null-check so we don't crash on such cases.

Per report from Alexander Pyhalov.

Discussion: https://postgr.es/m/b9a6f53549456b2f3e2fd150dcd79d72@postgrespro.ru

2021-07-07 15:21:25 -04:00

..

expected

Fix crash in postgres_fdw for provably-empty remote UPDATE/DELETE.

2021-07-07 15:21:25 -04:00

sql

Fix crash in postgres_fdw for provably-empty remote UPDATE/DELETE.

2021-07-07 15:21:25 -04:00

.gitignore

Add postgres_fdw contrib module.

2013-02-21 05:27:16 -05:00

connection.c

Allow TRUNCATE command to truncate foreign tables.

2021-04-08 20:56:08 +09:00

deparse.c

Initial pgindent and pgperltidy run for v14.

2021-05-12 13:14:10 -04:00

Makefile

postgres_fdw: Add function to list cached connections to foreign servers.

2021-01-18 15:11:08 +09:00

option.c

postgres_fdw: Tighten up allowed values for batch_size, fetch_size options.

2021-07-07 11:14:16 +09:00

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.c

Fix crash in postgres_fdw for provably-empty remote UPDATE/DELETE.

2021-07-07 15:21:25 -04:00

postgres_fdw.control

postgres_fdw: Add function to list cached connections to foreign servers.

2021-01-18 15:11:08 +09:00

postgres_fdw.h

Don't pass "ONLY" options specified in TRUNCATE to foreign data wrapper.

2021-04-27 14:41:27 +09:00

shippable.c

Replace remaining uses of "whitelist".

2021-01-05 14:00:16 +13:00