5fd77f6bb6
Autovacuum doesn't necessarily fully empty the GIN pending list. It
stops at the tail as of the start of cleanup, so that it doesn't keep
chasing pages appended by concurrent inserters. GIN decided this with
AmAutoVacuumWorkerProcess(), which returns false in parallel vacuum
workers launched by an autovacuum worker, so those workers tried to
fully empty the list as a manual VACUUM does.
Fix this by adding an is_autovacuum field to IndexVacuumInfo, set from
the shared parallel vacuum state in parallel workers, and using it in
GIN instead of checking the process type.
Oversight in commit 1ff3180ca0.
Reported-by: Jingtang Zhang <mrdrivingduck@gmail.com>
Author: Jingtang Zhang <mrdrivingduck@gmail.com>
Reviewed-by: Andrey Borodin <x4mmm@yandex-team.ru>
Reviewed-by: Yuhang Qiu <iamqyh@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/CAPsk3_DiF2i1o=JRXRk1YPVMv1VzJaCAbfiEqgwCva4=ZewVAw@mail.gmail.com
Backpatch-through: 19
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/.