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In v19, pg_stat_autovacuum_scores computes a TOAST table's scores from its own storage parameters alone. On the other hand, autovacuum falls back to the main table's parameters when the TOAST table has none. This means that the view may report scores that don't match what autovacuum would calculate. This contradicts the documented promise that the view generates its results the same way autovacuum workers do. To fix, teach the view to do the same fallback. As in do_autovacuum(), we must make a preliminary pass over pg_class to collect the main tables' parameters, since the pg_class scan may see TOAST tables before their main tables. Commitfad70a09fffor v20 improved autovacuum's handling of TOAST storage parameters and adjusted the view to match, but it was deemed too intrusive to back-patch. This fix is for v19 only. Oversight in commit87f61f0c82. Reported-by: Masahiko Sawada <sawada.mshk@gmail.com> Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com> Discussion: https://postgr.es/m/CAD21AoB1CJRVfCDh8qYuD3eueiygXxk7F3nybgjN0RZXSD-QUw%40mail.gmail.com Backpatch-through: 19 only
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.