Fix unstable test in select_parallel.sql
Richard Guo <rguo@postgresql.org>
Fix unstable test in select_parallel.sql 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
Files
| Path | Change | +/− |
|---|---|---|
| src/test/regress/expected/select_parallel.out | modified | +11 −6 |
| src/test/regress/sql/select_parallel.sql | modified | +8 −3 |
Discussion
- Should consider materializing the cheapest inner path in consider_parallel_nestloop() 29 messages · 2023-09-05 → 2024-07-22