dtenedor commented on code in PR #35975:
URL: https://github.com/apache/spark/pull/35975#discussion_r852543784
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala:
##########
@@ -85,22 +85,48 @@ abstract class SparkStrategies extends
QueryPlanner[SparkPlan] {
case ReturnAnswer(rootPlan) => rootPlan match {
case Limit(IntegerLiteral(limit), Sort(order, true, child))
if limit < conf.topKSortFallbackThreshold =>
- TakeOrderedAndProjectExec(limit, order, child.output,
planLater(child)) :: Nil
+ TakeOrderedAndProjectExec(limit, 0, order, child.output,
planLater(child)) :: Nil
case Limit(IntegerLiteral(limit), Project(projectList, Sort(order,
true, child)))
if limit < conf.topKSortFallbackThreshold =>
- TakeOrderedAndProjectExec(limit, order, projectList,
planLater(child)) :: Nil
+ TakeOrderedAndProjectExec(limit, 0, order, projectList,
planLater(child)) :: Nil
case Limit(IntegerLiteral(limit), child) =>
- CollectLimitExec(limit, planLater(child)) :: Nil
+ CollectLimitExec(limit, 0, planLater(child)) :: Nil
+ case GlobalLimitAndOffset(IntegerLiteral(limit),
IntegerLiteral(offset),
+ Sort(order, true, child)) if limit + offset <
conf.topKSortFallbackThreshold =>
+ TakeOrderedAndProjectExec(limit, offset, order, child.output,
planLater(child)) :: Nil
+ case GlobalLimitAndOffset(IntegerLiteral(limit),
IntegerLiteral(offset),
+ Project(projectList, Sort(order, true, child)))
+ if limit + offset < conf.topKSortFallbackThreshold =>
+ TakeOrderedAndProjectExec(limit, offset, order, projectList,
planLater(child)) :: Nil
+ case GlobalLimitAndOffset(IntegerLiteral(limit),
IntegerLiteral(offset), child) =>
+ CollectLimitExec(limit, offset, planLater(child)) :: Nil
case Tail(IntegerLiteral(limit), child) =>
CollectTailExec(limit, planLater(child)) :: Nil
case other => planLater(other) :: Nil
}
case Limit(IntegerLiteral(limit), Sort(order, true, child))
if limit < conf.topKSortFallbackThreshold =>
- TakeOrderedAndProjectExec(limit, order, child.output,
planLater(child)) :: Nil
+ TakeOrderedAndProjectExec(limit, 0, order, child.output,
planLater(child)) :: Nil
Review Comment:
Sure, it is OK to leave a TODO comment for this.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
