Github user rdblue commented on a diff in the pull request:
https://github.com/apache/spark/pull/20477#discussion_r165728696
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2ScanExec.scala
---
@@ -36,11 +38,14 @@ import org.apache.spark.sql.types.StructType
*/
case class DataSourceV2ScanExec(
fullOutput: Seq[AttributeReference],
- @transient reader: DataSourceReader)
+ @transient reader: DataSourceReader,
+ @transient sourceClass: Class[_ <: DataSourceV2])
extends LeafExecNode with DataSourceReaderHolder with ColumnarBatchScan {
override def canEqual(other: Any): Boolean =
other.isInstanceOf[DataSourceV2ScanExec]
+ override def simpleString: String = s"Scan $metadataString"
--- End diff --
+1 for overriding nodeName.
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