25.12.6.3 The events_statements_history_long Table
The events_statements_history_long
table contains the N
most recent statement events that have ended globally, across all threads. Statement events are not added to the table until they have ended. When the table becomes full, the oldest row is discarded when a new row is added, regardless of which thread generated either row.
The value of N
is autosized at server startup. To set the table size explicitly, set the performance_schema_events_statements_history_long_size
system variable at server startup.
The events_statements_history_long
table has the same columns as events_statements_current
. See Section 25.12.6.1, “The events_statements_current Table”.
TRUNCATE TABLE
is permitted for the events_statements_history_long
table. It removes the rows.
For more information about the relationship between the three events_statements_
event tables, see Section 25.9, “Performance Schema Tables for Current and Historical Events”. xxx
For information about configuring whether to collect statement events, see Section 25.12.6, “Performance Schema Statement Event Tables”.