Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21028#discussion_r185753083
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
---
@@ -378,6 +405,125 @@ case class ArrayContains(left: Expression, right:
Expression)
override def prettyName: String = "array_contains"
}
+/**
+ * Checks if the two arrays contain at least one common element.
+ */
+// scalastyle:off line.size.limit
+@ExpressionDescription(
+ usage = "_FUNC_(a1, a2) - Returns true if a1 contains at least an
element present also in a2. If the arrays have no common element and either of
them contains a null element null is returned, false otherwise.",
+ examples = """
+ Examples:
+ > SELECT _FUNC_(array(1, 2, 3), array(3, 4, 5));
+ true
+ """, since = "2.4.0")
+// scalastyle:off line.size.limit
+case class ArraysOverlap(left: Expression, right: Expression)
--- End diff --
done, thanks!
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