HyukjinKwon commented on a change in pull request #32944:
URL: https://github.com/apache/spark/pull/32944#discussion_r663432340
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AdaptiveSparkPlanExec.scala
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@@ -130,7 +130,11 @@ case class AdaptiveSparkPlanExec(
}
}
- @transient private val costEvaluator = SimpleCostEvaluator
+ @transient private val costEvaluator =
+ conf.getConf(SQLConf.ADAPTIVE_CUSTOM_COST_EVALUATOR_CLASS) match {
Review comment:
Yeah, we can add `@Unstable` for now but I would also add a note that
this class is supposed to be moved or changed in the near future.
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