innodb显示阻塞和等待以及等待时间

SELECT r.trx_id AS waiting_trx_id, r.trx_mysql_thread_id AS waiting_thread,TIMESTAMPDIFF(SECOND, r.trx_wait_started, CURRENT_TIMESTAMP) AS wait_time,r.trx_query AS waiting_query,l.lock_table AS waiting_table_lock,b.trx_id AS blocking_trx_id, b.trx_mysql_thread_id AS blocking_thread,SUBSTRING(p.host, 1,INSTR(p.host,':') -1 ) AS blocking_host,SUBSTRING(p.host, INSTR(p.host,':') +1 ) AS blocking_port,IF(p.command = "Sleep", p.time, 0) AS idle_in_trx,b.trx_query AS blocking_query FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS AS w INNER JOIN INFORMATION_SCHEMA.INNODB_TRX AS b ON b.trx_id = w.blocking_trx_id INNER JOIN INFORMATION_SCHEMA.INNODB_TRX AS r ON r.trx_id = w.requesting_trx_id INNER JOIN INFORMATION_SCHEMA.INNODB_LOCKS AS l ON w.requested_lock_id=l.lock_id LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST AS p ON p.id = b.trx_mysql_thread_id ORDER BY wait_time DESC;