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branch-4.1: [fix](regression) stabilize colocate column order plan test #64940 - #65315
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## Proposed changes Pin `parallel_pipeline_task_num=1` in the three-table `test_colocate_join_of_column_order` explain query. The case already waits for `group_column_order3` to become stable, but Cloud P0 history still shows intermittent `HAS_COLO_PLAN_NODE: false` / `INNER JOIN(PARTITIONED)` after the wait. The detailed failures share the same plan shape: the first join is planned as a partitioned shuffle, so its output no longer keeps the `NATURAL` hash distribution needed by the second join's colocate check. This is driven by physical-plan selection rather than statistics readiness. One sampled failure already executed `ALTER TABLE ... SET STATS` and still produced the same `INNER JOIN(PARTITIONED)` plan. Pinning `parallel_pipeline_task_num=1` removes the bucket-shuffle downgrade nondeterminism while preserving the original colocate planner coverage.
yiguolei
commented
Jul 10, 2026
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run buildall |
yiguolei
approved these changes
Jul 13, 2026
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PR approved by at least one committer and no changes requested. |
ContributorAuthor
PR approved by anyone and no changes requested. |
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Cherry-picked from #64940