Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/23127#discussion_r236151394
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/ExistingRDD.scala ---
@@ -199,4 +199,6 @@ case class RDDScanExec(
override def simpleString: String = {
s"$nodeName${truncatedString(output, "[", ",", "]")}"
}
+
+ override def inputRDD: RDD[InternalRow] = rdd
--- End diff --
The test failure is real. `RDDScanExec.rdd` may not be RDD of unsafe row.
Maybe we should enforce that, `InputRDDCodegen.inputRDD` is `RDD[UnsafeRow]`.
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