Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21025#discussion_r181299913
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
---
@@ -287,3 +287,67 @@ 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.",
--- End diff --
We will ignore NULL, right? Please document it.
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