Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/15764#discussion_r86659535
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala ---
@@ -173,6 +177,34 @@ case class CreateViewCommand(
}
/**
+ * Permanent views are not allowed to reference temp objects, including
temp function and views
+ */
+ private def verifyTemporaryObjectsNotExists(sparkSession: SparkSession):
Unit = {
+ if (!isTemporary) {
+ // This func traverses the unresolved plan `child`. Below are the
reasons:
--- End diff --
is it possible the `child` is resolved? e.g. by `DataFrame` API
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