pgsql: Build subscription conninfo after checking that it's enabled.

From: Jeff Davis <jdavis(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Build subscription conninfo after checking that it's enabled.
Date: 2026-08-05 19:58:55
Message-ID: E1wrhlP-00000000L5p-13Rm@gemulon.postgresql.org
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Build subscription conninfo after checking that it's enabled.

If a subscription is disabled, don't try to build conninfo because
that may generate a confusing error and try to disable an
already-disabled subscription.

Partially addresses finding 5 in report from linked discussion.

Reported-by: Noah Misch <noah(at)leadboat(dot)com>
Reviewed-by: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Discussion: https://postgr.es/m/20260710195902.4f.noahmisch%40microsoft.com
Backpatch-through: 19

Branch
------
REL_19_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/f567e066d6e3d09b1db740d0a891b9464c64caa2

Modified Files
--------------
src/backend/replication/logical/worker.c | 28 ++++++++++++++++++----------
1 file changed, 18 insertions(+), 10 deletions(-)

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