[GitHub] [spark] HyukjinKwon commented on a diff in pull request #38947: SPARK-41231: Adds an array_prepend function to catalyst

[GitBox <gi...@apache.org>]

HyukjinKwon commented on code in PR #38947:
URL: https://github.com/apache/spark/pull/38947#discussion_r1041690900


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala:
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@@ -119,21 +117,24 @@ case class Size(child: Expression, legacySizeOfNull: Boolean)
     val value = child.eval(input)
     if (value == null) {
       if (legacySizeOfNull) -1 else null
-    } else child.dataType match {
-      case _: ArrayType => value.asInstanceOf[ArrayData].numElements()
-      case _: MapType => value.asInstanceOf[MapData].numElements()
-      case other => throw QueryExecutionErrors.unsupportedOperandTypeForSizeFunctionError(other)
-    }
+    } else

Review Comment:
   Can we remove unrelated style changes?



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