uros-b commented on code in PR #57629:
URL: https://github.com/apache/spark/pull/57629#discussion_r3683361294
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/InsertMapSortExpression.scala:
##########
@@ -42,42 +44,73 @@ object InsertMapSortInGroupingExpressions extends
Rule[LogicalPlan] {
if (!plan.containsPattern(AGGREGATE)) {
return plan
}
- val shouldRewrite = plan.exists {
- case agg: Aggregate if
agg.groupingExpressions.exists(mapTypeExistsRecursively) => true
- case _ => false
- }
- if (!shouldRewrite) {
- return plan
- }
plan transformUpWithNewOutput {
case agg @ Aggregate(groupingExprs, aggregateExpressions, child, hint) =>
- val exprToMapSort = new mutable.HashMap[Expression, NamedExpression]
- val newGroupingKeys = groupingExprs.map { expr =>
- val inserted = insertMapSortRecursively(expr)
- if (expr.ne(inserted)) {
- exprToMapSort.getOrElseUpdate(
- expr.canonicalized,
- Alias(inserted, "_groupingmapsort")()
- ).toAttribute
+ val distinctExpressions =
+ if
(conf.getConf(SQLConf.INSERT_MAP_SORT_IN_DISTINCT_AGGREGATES_ENABLED)) {
Review Comment:
conf.getConf(...) is read once per Aggregate inside the transform. Could we
do it above instead?
--
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]
