MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6
          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”.