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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