Execute the run_2 index because it has caused a conflict in the choice of key for this query.

Drop the run_2 index because it has caused a conflict in the choice of key for this query.

Do not pass a user variable in the WHERE clause because it limits the ability of the optimizer to use indexes.

Add an index on the objective column so that is can be used in both the WHERE and GROUP BY operations.

Add a composite index on (run,objective,stage) to allow the query to fully utilize an index.

Execute SELECT * FROM mysql.routines WHERE DEFINER=’bob@localhost’;.

Execute SHOW ROUTINES WHERE DEFINER=’bob@localhost’.

Execute SELECT * FROM INFORMATION_SCHEMA. ROUTINES WHERE DEFINER=’bob@localhost’;.

Execute SELECT * FROM INFORMATION_SCHEMA. PROCESSLIST WHERE USER=’bob’ and HOST=’ localhost’;.

Examine the Mysql error log for other ERROR 1449 messages.

Using DELETE statements, for example, DELETE FROM performance_schema.events_watis_current;

Using the statement RESET PERFORMANCE CACHE;

Using the statement FLUSH PERFORMANCE CACHE;

Using TRUNCATE statements, for example, TRUNCATE TABLE performance_schema.events_waits_current;

Disabling and re-enabling all instruments

Restarting Mysql