Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/18600#discussion_r126802265
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/DataSourceScanExec.scala
---
@@ -73,34 +72,24 @@ trait DataSourceScanExec extends LeafExecNode with
CodegenSupport {
/** Physical plan node for scanning data from a relation. */
case class RowDataSourceScanExec(
- output: Seq[Attribute],
+ fullOutput: Seq[Attribute],
+ requiredColumnsIndex: Seq[Int],
+ filters: Set[Filter],
rdd: RDD[InternalRow],
@transient relation: BaseRelation,
- override val outputPartitioning: Partitioning,
- override val metadata: Map[String, String],
- override val metastoreTableIdentifier: Option[TableIdentifier])
+ override val tableIdentifier: Option[TableIdentifier])
extends DataSourceScanExec {
+ def output: Seq[Attribute] = requiredColumnsIndex.map(fullOutput)
--- End diff --
`def output: Seq[Attribute]`?
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