SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function round (children 1)
     ExpressionList (children 2)
      Function arrayJoin (children 1)
       ExpressionList (children 1)
        Function categoricalInformationValue (children 1)
         ExpressionList (children 2)
          Function tupleElement (children 1)
           ExpressionList (children 2)
            Identifier x
            Literal UInt64_1
          Function tupleElement (children 1)
           ExpressionList (children 2)
            Identifier x
            Literal UInt64_2
      Literal UInt64_3
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function arrayJoin (alias x) (children 1)
            ExpressionList (children 1)
             Function array (children 1)
              ExpressionList (children 4)
               Literal Tuple_(UInt64_0, UInt64_0)
               Literal Tuple_(NULL, UInt64_2)
               Literal Tuple_(UInt64_1, UInt64_0)
               Literal Tuple_(UInt64_1, UInt64_1)
