d6a6957d53
Buildfarm member avocet has shown a plan change by switching the finalize aggregate stage to use a GroupAggregate rather than a HashAggregate. This is consistent with autovacuum having triggered on the table, per analysis by Alexander Lakhin. Fix this by disabling autovacuum on the table. Reported-by: Alexander Lakhin Discussion: https://postgr.es/m/d4493a28-589a-5328-fed5-250f2d7d3e2a@gmail.com Backpatch-through: 16, where this test was added.
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/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/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/.