struct ovsdb_schema *ovsdb_schema_clone(const struct ovsdb_schema *);
void ovsdb_schema_destroy(struct ovsdb_schema *);
struct ovsdb_error *ovsdb_schema_from_file(const char *file_name,
struct ovsdb_schema **)
struct ovsdb_schema *ovsdb_schema_clone(const struct ovsdb_schema *);
void ovsdb_schema_destroy(struct ovsdb_schema *);
struct ovsdb_error *ovsdb_schema_from_file(const char *file_name,
struct ovsdb_schema **)