Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/22075#discussion_r209478694
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala ---
@@ -1852,6 +1852,11 @@ class DataFrameFunctionsSuite extends QueryTest with
SharedSQLContext {
df.selectExpr("transform(i, x -> x)")
}
assert(ex2.getMessage.contains("data type mismatch: argument 1
requires array type"))
+
+ val ex3 = intercept[AnalysisException] {
+ df.selectExpr("transform(a, x -> x)")
--- End diff --
The previous behavior was the same. I just added to check the behavior is
as expected.
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