beliefer commented on code in PR #36541:
URL: https://github.com/apache/spark/pull/36541#discussion_r873425906


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala:
##########
@@ -1303,12 +1303,25 @@ case class LocalLimit(limitExpr: Expression, child: 
LogicalPlan) extends OrderPr
     copy(child = newChild)
 }
 
+object OffsetAndLimit {
+  def unapply(p: GlobalLimit): Option[(Int, Int, LogicalPlan)] = {
+    p match {
+      // Optimizer pushes local limit through offset, so we need to match the 
plan this way.
+      case GlobalLimit(IntegerLiteral(globalLimit),
+             Offset(IntegerLiteral(offset),
+               LocalLimit(IntegerLiteral(localLimit), child)))
+          if globalLimit + offset == localLimit =>
+        Some((offset, globalLimit, child))

Review Comment:
   OK



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