Previously, the check_hook for synchronized_standby_slots attempted to validate that each specified slot existed and was physical. However, these checks were not performed during server startup. As a result, if users configured non-existent slots before startup, the misconfiguration would go undetected initially. This could later cause parallel query failures, as newly launched workers would detect the issue and raise an ERROR. This patch improves the check_hook by validating the syntax and format of slot names. Validation of slot existence and type is deferred to the WAL sender process, aligning with the behavior of the check_hook for primary_slot_name. Reported-by: Fabrice Chapuis <fabrice636861@gmail.com> Author: Shlok Kyal <shlok.kyal.oss@gmail.com> Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Reviewed-by: Ashutosh Sharma <ashu.coek88@gmail.com> Reviewed-by: Rahila Syed <rahilasyed90@gmail.com> Backpatch-through: 17, where it was introduced Discussion: https://postgr.es/m/CAA5-nLCeO4MQzWipCXH58qf0arruiw0OeUc1+Q=Z=4GM+=v1NQ@mail.gmail.com
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/.