Reduce the MySQL transaction isolation level

Testing the code is an experiment that lowers the level of things isolation:

            NULL ;             Try {                = dbutils.getconnection ();                Conn.setautocommit (false);                Conn.settransactionisolation (connection.transaction_read_committed);
............

However, the error

Limited to row-based logging. InnoDB is limited to row-logging while transaction isolation level is read COMMITTED or READ uncommitted.

So I looked at the next Binlog_format:

　　

So:

　　

　　

This will do, or it is said that the change mixed mode is also possible, but not tested.

Reduce the MySQL transaction isolation level