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Previously, the check_hook functions for max_slot_wal_keep_size and idle_replication_slot_timeout would incorrectly raise an ERROR for values set in postgresql.conf during upgrade, even though those values were not actively used in the upgrade process. To prevent logical slot invalidation during upgrade, we used to set special values for these GUCs. Now, instead of relying on those values, we directly prevent WAL removal and logical slot invalidation caused by max_slot_wal_keep_size and idle_replication_slot_timeout. Note: PostgreSQL 17 does not include the idle_replication_slot_timeout GUC, so related changes were not backported. BUG #18979 Reported-by: jorsol <jorsol@gmail.com> Author: Dilip Kumar <dilipbalaut@gmail.com> Reviewed by: vignesh C <vignesh21@gmail.com> Reviewed by: Alvaro Herrera <alvherre@alvh.no-ip.org> Backpatch-through: 17, where it was introduced Discussion: https://postgr.es/m/219561.1751826409@sss.pgh.pa.us Discussion: https://postgr.es/m/18979-a1b7fdbb7cd181c6@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/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/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/.