Github user mn-mikke commented on a diff in the pull request: https://github.com/apache/spark/pull/21103#discussion_r203741325 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala --- @@ -3805,3 +3799,332 @@ object ArrayUnion { new GenericArrayData(arrayBuffer) } } + +/** + * Returns an array of the elements in the intersect of x and y, without duplicates + */ +@ExpressionDescription( + usage = """ + _FUNC_(array1, array2) - Returns an array of the elements in array1 but not in array2, + without duplicates. + """, + examples = """ + Examples:Fun --- End diff -- just "Examples:"?
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