postgresql/contrib/postgres_fdw
Fujii Masao 97f6fc10ff postgres_fdw: Give user mapping precedence for use_scram_passthrough
Previously, when use_scram_passthrough was specified on both a foreign server
and a user mapping, the server-level setting took precedence over the
user-mapping setting. This was inconsistent with the usual semantics of
postgres_fdw options, where foreign server options provide shared defaults
and user mapping options override them on a per-user basis.

This commit updates postgres_fdw so that the user-mapping setting takes
precedence when use_scram_passthrough is specified in both places. This
matches the behavior of other connection options such as sslcert and sslkey.

Backpatch to v18, where use_scram_passthrough was introduced. In v18,
this only affects limited configurations that specify conflicting values
at both the foreign server and user-mapping levels. In such cases, users
would naturally expect the user-mapping setting to override the server-level
setting, so changing the behavior should be minimally disruptive.
Also keeping v18 as the only branch with different semantics for
use_scram_passthrough would be unnecessarily confusing, so backpatch
this fix to v18.

Author: Matheus Alcantara <matheusssilv97@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/CAHGQGwEJ8rZjmbOvCicyr4vbuLio082bNTde0WNoSWaWr9wVcg@mail.gmail.com
Backpatch-through: 18
2026-05-26 00:46:31 +09:00
..
expected postgres_fdw: Fix deparsing of remote column names in stats import. 2026-05-14 17:05:00 +09:00
specs postgres_fdw: Add more test coverage for EvalPlanQual testing. 2025-11-06 12:15:00 +09:00
sql postgres_fdw: Fix deparsing of remote column names in stats import. 2026-05-14 17:05:00 +09:00
t postgres_fdw: Give user mapping precedence for use_scram_passthrough 2026-05-26 00:46:31 +09:00
.gitignore Fix EvalPlanQual handling of foreign/custom joins in ExecScanFetch. 2025-10-15 17:15:00 +09:00
connection.c postgres_fdw: Give user mapping precedence for use_scram_passthrough 2026-05-26 00:46:31 +09:00
deparse.c Add support for importing statistics from remote servers. 2026-04-08 19:15:00 +09:00
Makefile CREATE SUBSCRIPTION ... SERVER. 2026-03-06 08:27:56 -08:00
meson.build CREATE SUBSCRIPTION ... SERVER. 2026-03-06 08:27:56 -08:00
option.c Add support for importing statistics from remote servers. 2026-04-08 19:15:00 +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--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--1.2--1.3.sql CREATE SUBSCRIPTION ... SERVER. 2026-03-06 08:27:56 -08:00
postgres_fdw.c postgres_fdw: Replace buffers in RemoteAttributeMapping with pointers. 2026-05-16 17:55:00 +09:00
postgres_fdw.control CREATE SUBSCRIPTION ... SERVER. 2026-03-06 08:27:56 -08:00
postgres_fdw.h Update copyright for 2026 2026-01-01 13:24:10 -05:00
shippable.c Switch SysCacheIdentifier to a typedef enum 2026-02-18 09:58:38 +09:00