Github user mn-mikke commented on a diff in the pull request: https://github.com/apache/spark/pull/21045#discussion_r188189736 --- Diff: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CollectionExpressionsSuite.scala --- @@ -199,6 +200,20 @@ class CollectionExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper Some(Literal.create(null, StringType))), null) } + test("Zip") { --- End diff -- Add some test cases with `nulls`.
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