cloud-fan commented on a change in pull request #32513:
URL: https://github.com/apache/spark/pull/32513#discussion_r638770147
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/QueryExecution.scala
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@@ -74,12 +76,31 @@ class QueryExecution(
sparkSession.sessionState.analyzer.executeAndCheck(logical, tracker)
}
+ // SPARK-35378: Eagerly execute Command
+ // Currently, Command returns GenericInternalRow and some Exec casts the
output
+ // of child plan to UnsafeRow. If we set Command as the child node or sub
query,
+ // then ClassCastException occurs. Such as:
+ // java.lang.ClassCastException
+ // org.apache.spark.sql.catalyst.expressions.GenericInternalRow cannot be
cast to
+ // org.apache.spark.sql.catalyst.expressions.UnsafeRow
+ // So eagerly executes Command and converts the output of it to UnsafeRow.
+ lazy val commandExecuted: LogicalPlan = analyzed transformDown {
Review comment:
nit:
```
if (isExecutingCommand) {
analyzed
} else {
analyzed.transformDown ...
}
```
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