Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/20647#discussion_r170208349
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2Strategy.scala
---
@@ -23,11 +23,11 @@ import org.apache.spark.sql.execution.SparkPlan
object DataSourceV2Strategy extends Strategy {
override def apply(plan: LogicalPlan): Seq[SparkPlan] = plan match {
- case relation: DataSourceV2Relation =>
- DataSourceV2ScanExec(relation.output, relation.reader) :: Nil
+ case r: DataSourceV2Relation =>
--- End diff --
`relation` is called many times in the next line, renaming it to `r` can
shorten the code below.
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