infoankitp commented on code in PR #38865:
URL: https://github.com/apache/spark/pull/38865#discussion_r1038205079
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -4600,3 +4600,69 @@ case class ArrayExcept(left: Expression, right:
Expression) extends ArrayBinaryL
override protected def withNewChildrenInternal(
newLeft: Expression, newRight: Expression): ArrayExcept = copy(left =
newLeft, right = newRight)
}
+
+/**
+ * Given an array, and another element append the element at the end of the
array.
+ */
+@ExpressionDescription(
+ usage = "_FUNC_(expr, expr) - Prepend the element",
+ examples = """
+ Examples:
+ > SELECT _FUNC_(array('b', 'd', 'c', 'a'), array(1, 2, 3, 4));
+
+ """,
+ since = "3.4.0",
+ group = "collection_funcs")
+case class ArrayAppend(left: Expression, right: Expression)
+ extends BinaryExpression
+ with ImplicitCastInputTypes {
+ override def prettyName: String = "array_append"
+ override def inputTypes: Seq[AbstractDataType] = Seq(ArrayType, AnyDataType)
Review Comment:
Checked it, so it promotes the type to the one which can accomodate both
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