709ce29b16
There are two functions that can be used in event triggers to get more details about a rewrite happening on a relation. Both had a limited documentation: - pg_event_trigger_table_rewrite_reason() and pg_event_trigger_table_rewrite_oid() were not mentioned in the main event trigger section in the paragraph dedicated to the event table_rewrite. - pg_event_trigger_table_rewrite_reason() returns an integer which is a bitmap of the reasons why a rewrite happens. There was no explanation about the meaning of these values, forcing the reader to look at the code to find out that these are defined in event_trigger.h. While on it, let's add a comment in event_trigger.h where the AT_REWRITE_* are defined, telling to update the documentation when these values are changed. Backpatch down to 13 as a consequence of 1ad23335f36b, where this area of the documentation has been heavily reworked. Author: Greg Sabino Mullane Discussion: https://postgr.es/m/CAKAnmmL+Z6j-C8dAx1tVrnBmZJu+BSoc68WSg3sR+CVNjBCqbw@mail.gmail.com Backpatch-through: 13
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/.