[GitHub] [spark] maropu commented on a change in pull request #30040: [WIP][SPARK-33124][SQL][DOCS] Adds a group tag in all the expressions for built-in functions

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

maropu commented on a change in pull request #30040:
URL: https://github.com/apache/spark/pull/30040#discussion_r505075740



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File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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@@ -90,7 +90,8 @@ trait BinaryArrayExpressionWithImplicitCast extends BinaryExpression
       > SELECT _FUNC_(NULL);
        -1
   """,
-  since = "1.5.0")
+  since = "1.5.0",
+  group = "array_funcs")
 case class Size(child: Expression, legacySizeOfNull: Boolean)
   extends UnaryExpression with ExpectsInputTypes {

Review comment:
       hm, I see. Another idea: how about making a group for more general cases, e.g., `collection_funcs`? cc: @HyukjinKwon 




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