rdblue commented on a change in pull request #25536: [SPARK-28837][SQL]
CTAS/RTAS should use nullable schema
URL: https://github.com/apache/spark/pull/25536#discussion_r316462996
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/WriteToDataSourceV2Exec.scala
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@@ -81,11 +81,12 @@ case class CreateTableAsSelectExec(
}
Utils.tryWithSafeFinallyAndFailureCallbacks({
+ val schema = query.schema.asNullable
Review comment:
I think it would be incorrect to change the logical plan. The behavior of
CTAS should be that tables are created with nullable types. The query used by
CTAS should not be changed.
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