cloud-fan commented on code in PR #44429:
URL: https://github.com/apache/spark/pull/44429#discussion_r1433401606
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
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@@ -1602,12 +1595,6 @@ object EliminateSorts extends Rule[LogicalPlan] {
plan match {
case Sort(_, global, child) if canRemoveGlobalSort || !global =>
recursiveRemoveSort(child, canRemoveGlobalSort)
- case Sort(sortOrder, true, child) =>
- // For this case, the upper sort is local so the ordering of present
sort is unnecessary,
- // so here we only preserve its output partitioning using
`RepartitionByExpression`.
- // We should use `None` as the optNumPartitions so AQE can coalesce
shuffle partitions.
- // This behavior is same with original global sort.
- RepartitionByExpression(sortOrder, recursiveRemoveSort(child, true),
None)
Review Comment:
`EliminateSorts` still does this job:
https://github.com/apache/spark/pull/44429/files#diff-11264d807efa58054cca2d220aae8fba644ee0f0f2a4722c46d52828394846efR1577
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