type column_dbms = {
mutable col_type_sql : string * string option * string option ;
(** SQL type, an optional argument, and optional args *) |
mutable col_2ml : string ;
(** Name of the function to call to get a ml value from a string *) |
mutable col_ml2 : string ;
(** Name of the function to call to get a strign from a ml value *) |
mutable col_key : t_key option ;
(** optional key type *) |
mutable col_default : sql_code option ;
(** optional default SQL value *) |
mutable col_atts : (string * sql_code) list ;
(** list of (attribute name, SQL code for value) *) |
}