SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    WithElement (children 1)
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 4)
         ExpressionList (children 1)
          Asterisk
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier 03033_example_table
         ExpressionList (children 1)
          OrderByElement (children 1)
           Identifier ColumnA
         ExpressionList (children 2)
          InterpolateElement (column ColumnB) (children 1)
           Identifier ColumnC
          InterpolateElement (column ColumnC) (children 1)
           Identifier ColumnA
   ExpressionList (children 1)
    Identifier ColumnB
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier helper
