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Previously, the tool could replay the same transaction twice, once during recovery, then again during replication after the subscriber was set up. This occurred because the same recovery_target_lsn was used both to finalize recovery and to start replication. If recovery_target_inclusive = true, the transaction at that LSN would be applied during recovery and then sent again by the publisher leading to duplication. To prevent this, we now set recovery_target_inclusive = false. This ensures the transaction at recovery_target_lsn is not reapplied during recovery, avoiding duplication when replication begins. Bug #18897 Reported-by: Zane Duffield <duffieldzane@gmail.com> Author: Shlok Kyal <shlok.kyal.oss@gmail.com> Reviewed-by: vignesh C <vignesh21@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Backpatch-through: 17, where it was introduced Discussion: https://postgr.es/m/18897-d3db67535860dddb@postgresql.org
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.