[GitHub] [spark] LuciferYang commented on a diff in pull request #40563: [SPARK-41232][SPARK-41233][FOLLOWUP] Refactor `array_append` and `array_prepend` with `RuntimeReplaceable`

["LuciferYang (via GitHub)" <gi...@apache.org>]

LuciferYang commented on code in PR #40563:
URL: https://github.com/apache/spark/pull/40563#discussion_r1149348790


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -1400,120 +1400,27 @@ case class ArrayContains(left: Expression, right: Expression)
     copy(left = newLeft, right = newRight)
 }
 
-// scalastyle:off line.size.limit
-@ExpressionDescription(
-  usage = """
-      _FUNC_(array, element) - Add the element at the beginning of the array passed as first
-      argument. Type of element should be the same as the type of the elements of the array.
-      Null element is also prepended to the array. But if the array passed is NULL
-      output is NULL
-    """,
-  examples = """
-    Examples:
-      > SELECT _FUNC_(array('b', 'd', 'c', 'a'), 'd');
-       ["d","b","d","c","a"]
-      > SELECT _FUNC_(array(1, 2, 3, null), null);
-       [null,1,2,3,null]
-      > SELECT _FUNC_(CAST(null as Array<Int>), 2);
-       NULL
-  """,
-  group = "array_funcs",
-  since = "3.5.0")
-case class ArrayPrepend(left: Expression, right: Expression)
-  extends BinaryExpression
-    with ImplicitCastInputTypes
-    with ComplexTypeMergingExpression
-    with QueryErrorsBase {
+trait ArrayInsertEnd extends RuntimeReplaceable

Review Comment:
   should we rename this trait? `ArrayInsertEnd` cannot describe `ArrayPrepend` well
   
   



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