Fixed ResultSet.isBeforeFirst() for empty result sets.

Added missing LONGTEXT type to DBMD.getColumns().

Implemented an empty TypeMap for Connection.getTypeMap() so that some third-party apps work with MySQL (IBM WebSphere 5.0 Connection pool).

Added update options for foreign key metadata.

Fixed Buffer.fastSkipLenString() causing ArrayIndexOutOfBounds exceptions with some queries when unpacking fields.

Quote table names in DatabaseMetaData.getColumns(), getPrimaryKeys(), getIndexInfo(), getBestRowIdentifier().

Retrieve TX_ISOLATION from database for Connection.getTransactionIsolation() when the MySQL version supports it, instead of an instance variable.

Greatly reduce memory required for setBinaryStream() in PreparedStatements.