One test case added in 22d946b0f verifies the plan of a non-parallel nestloop join. The planner's choice of join order is arbitrary, and slight variations in underlying statistics could result in a different displayed plan. To stabilize the test result, here we enforce the join order using a lateral join. While here, modify the test case to verify that parallel nestloop join is not generated if the inner path is not parallel-safe, which is what we wanted to test in 22d946b0f. Reported-by: Alexander Lakhin as per buildfarm Author: Richard Guo Discussion: https://postgr.es/m/7c09a439-e48d-5460-cfa0-a371b1a57066@gmail.com
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/.