branch-4.1: [fix](be) Stabilize conjunct cost ordering #64637#64868
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Problem Summary: When `enable_adjust_conjunct_order_by_cost` is enabled, conjuncts are sorted by `execute_cost` with `std::ranges::sort`. Equal-cost conjuncts may have their original relative order changed, which can introduce unnecessary evaluation-order side effects. This patch switches the cost ordering paths to `std::ranges::stable_sort` so lower-cost conjuncts are still prioritized while equal-cost conjuncts keep their original order.
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BE Regression && UT Coverage ReportIncrement line coverage Increment coverage report
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yiguolei
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Jun 26, 2026
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PR approved by at least one committer and no changes requested. |
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Cherry-picked from #64637