SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function untuple (children 1)
     ExpressionList (children 1)
      Function tuple (children 1)
       ExpressionList (children 1)
        Asterisk (children 1)
         ColumnsTransformerList (children 1)
          ColumnsExceptTransformer (children 1)
           Identifier b
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_1 (alias a)
           Literal UInt64_2 (alias b)
           Literal UInt64_3 (alias c)
