Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/21230#discussion_r187388065 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/PushDownOperatorsToDataSource.scala --- @@ -23,17 +23,10 @@ import org.apache.spark.sql.catalyst.plans.logical.{Filter, LogicalPlan, Project import org.apache.spark.sql.catalyst.rules.Rule object PushDownOperatorsToDataSource extends Rule[LogicalPlan] { - override def apply( - plan: LogicalPlan): LogicalPlan = plan transformUp { + override def apply(plan: LogicalPlan): LogicalPlan = plan.mapChildren { --- End diff -- Could you update the PR description (`transformDown` -> `mapChildren`), too?
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