Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/20024#discussion_r159682007
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
---
@@ -2775,4 +2773,53 @@ class SQLQuerySuite extends QueryTest with
SharedSQLContext {
}
}
}
+
+ test("SPARK-22825 Cast array to string") {
--- End diff --
I think the unit test is good enough, we don't need this end-to-end test.
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