cloud-fan commented on a change in pull request #32944:
URL: https://github.com/apache/spark/pull/32944#discussion_r662949447
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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:
`catalyst` is also an internal package.
`SparkSessionExtensions` exposes `LogicalPlan` as well, and I think unstable
developer API does not have a hard requirement on the package names. I'm fine
to add `@Unstable`
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