f76c13edad
The test added by c62b330912 creates a btree opfamily whose members
include built-in integer operators, which get_mergejoin_opfamilies()
finds regardless of schema. So any concurrently running test that
planned an integer join or sort could pick the family up while it
existed. That's the likely cause of the intermittent plan-shape
changes seen in window.sql and equivclass.sql on the buildfarm after
that commit.
Run the test inside a transaction that is rolled back, so the family
is never committed and never visible to other backends.
Per buildfarm members sifaka, prion, turaca, widowbird.
Discussion: https://postgr.es/m/CA+HiwqGitHCmO7nvV4nXXYWDkNYA+zVcJj=JNmL3C1O9B0Gz0A@mail.gmail.com
Backpatch-though: 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/.