zml1206 commented on code in PR #230:
URL: https://github.com/apache/incubator-gluten/pull/230#discussion_r1629075647
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jvm/src/main/scala/io/glutenproject/extension/StrategyOverrides.scala:
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@@ -76,8 +69,26 @@ object JoinSelectionOverrides extends Strategy with
JoinSelectionHelper with SQL
if (GlutenConfig.getSessionConf.forceShuffledHashJoin) {
// Force use of ShuffledHashJoin in preference to SortMergeJoin. With
no respect to
// conf setting "spark.sql.join.preferSortMergeJoin".
- val leftBuildable = canBuildShuffledHashJoinLeft(joinType)
- val rightBuildable = canBuildShuffledHashJoinRight(joinType)
+ val (leftBuildable, rightBuildable) = if
(GlutenConfig.getConf.isClickHouseBackend) {
+ // Currently, ClickHouse backend can not support AQE, so it needs to
use join hint
+ // to decide the build side, after supporting AQE, will remove this.
Review Comment:
OK.
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