andygrove commented on code in PR #1007:
URL: https://github.com/apache/datafusion-comet/pull/1007#discussion_r1794312492
##########
common/src/main/scala/org/apache/comet/CometConf.scala:
##########
@@ -263,6 +263,12 @@ object CometConf extends ShimCometConf {
.booleanConf
.createWithDefault(false)
+ val COMET_REPLACE_SMJ: ConfigEntry[Boolean] =
+ conf(s"$COMET_EXEC_CONFIG_PREFIX.replaceSortMergeJoin")
+ .doc("Whether to replace SortMergeJoin with ShuffledHashJoin for
improved performance.")
+ .booleanConf
+ .createWithDefault(true)
Review Comment:
For this PR, I disabled the feature by default. I created the following PR
to enable it by default and update the tests. I will add documentation as part
of this PR.
https://github.com/apache/datafusion-comet/pull/1008
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