[GitHub] [spark] wangyum commented on a change in pull request #31750: [SPARK-34628][SQL] Remove GlobalLimit operator if its child max rows not larger than limit number

[GitBox <gi...@apache.org>]

wangyum commented on a change in pull request #31750:
URL: https://github.com/apache/spark/pull/31750#discussion_r588891807



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File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1559,7 +1559,8 @@ object PushPredicateThroughJoin extends Rule[LogicalPlan] with PredicateHelper {
 /**
  * This rule optimizes Limit operators by:
  * 1. Eliminate [[Limit]] operators if it's child max row <= limit.
- * 2. Combines two adjacent [[Limit]] operators into one, merging the
+ * 2. Eliminate [[GlobalLimit]] operators if it's child max row <= limit.

Review comment:
       fixed.




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