Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13967#discussion_r69139821
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CollectionFunctionsSuite.scala
---
@@ -44,6 +44,16 @@ class CollectionFunctionsSuite extends SparkFunSuite
with ExpressionEvalHelper {
checkEvaluation(Literal.create(null, ArrayType(StringType)), null)
}
+ test("MapKeys/MapValues") {
+ val m0 = Literal.create(Map("a" -> "1", "b" -> "2"),
MapType(StringType, StringType))
+ val m1 = Literal.create(Map[String, String](), MapType(StringType,
StringType))
--- End diff --
also check null case please
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