As of MySQL 5.6.3, the
events_stages_history table
contains the most recent N stage
events per thread. The value of N
is autosized at server startup. To set the table size
explicitly, set the
performance_schema_events_stages_history_size
system variable at server startup. Stage events are not added
to the table until they have ended. As new events are added,
older events are discarded if the table is full.
The events_stages_history table
has the same structure as
events_stages_current. See
Section 22.10.5.1, “The events_stages_current Table”.
TRUNCATE TABLE is permitted for
the events_stages_history table.
It removes the rows.
For information about configuration of stage event collection, see Section 22.10.5, “Performance Schema Stage Event Tables”.