- MDB_INCOMPATIBLEconstant
Operation and DB incompatible, or DB type changed. This can mean:
- The operation expects an MDB_DUPSORT / MDB_DUPFIXED database. - Opening a named DB when the unnamed DB has MDB_DUPSORT / MDB_INTEGERKEY. - Accessing a data record as a database, or vice versa. - The database was dropped and recreated with different flags.