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help / color / mirror / Atom feedFrom: Alexander Uvizhev <[email protected]>
To: [email protected]
Subject: Starting logical replication at arbitrary point that's available in WAL
Date: Fri, 27 Dec 2024 11:39:02 +0000
Message-ID: <[email protected]> (raw)
Hi,
I'm doing a logical replication using streaming replication protocol and
I'm trying to start a stream from a certain arbitrary point that's
available in WAL. However, both CREATE_REPLICATION_SLOT and
pg_create_logical_replication_slot() create slot with nearly last LSN/XID.
Is it possible to create a replication slot with arbitrary LSN/XID values?
Also pg_create_logical_replication_slot() for some reason gives
different result than CREATE_REPLICATION_SLOT: new slot's `catalog_xmin`
is set to the smallest `catalog_xmin` among already existing slots.
Looks like a bug.
I'm using PostgreSQL 16.6.
--
AU
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