On 2/6/26 4:36 PM, Florents Tselai wrote:
Twice this week I've encountered users confusing wal_level=logical with
the actual setup of Logical Replication.
Since users often land directly on the config.html page via search engines,
they see the setting and assume enabling it is all that is required for
replication to work.
I think adding a clarification note here will prevent this (not so
uncommon) misunderstanding.
With the automatic change of effective WAL level which will be added in
PostgreSQL 19 I think that addition will just move the confusion to
another thing. If we want this note I think we need to clarify that
replica is enough since that can be automatically increased to logical
when necessary.
Andreas
