Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/21025#discussion_r180422191 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala --- @@ -287,3 +287,70 @@ case class ArrayContains(left: Expression, right: Expression) override def prettyName: String = "array_contains" } + + +/** + * Returns the minimum value in the array. + */ +@ExpressionDescription( +usage = "_FUNC_(array) - Returns the minimum value in the array.", +examples = """ + Examples: + > SELECT _FUNC_(array(1, 20, null, 3)); + 1 + """, since = "2.4.0") --- End diff -- indentation ..
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