SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function date_pv (children 1)
       ExpressionList (children 1)
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier dtparam
          Function toString (children 1)
           ExpressionList (children 1)
            Function toDate (children 1)
             ExpressionList (children 1)
              Literal \'1974-04-07\'
