mysql locktables

SELECT 
    r.trx_id waiting_trx_id, 
    r.trx_mysql_thread_id waiting_thread, 
    TIMESTAMPDIFF( 
        SECOND, 
        r.trx_wait_started, 
        CURRENT_TIMESTAMP 
    ) wait_time, 
    r.trx_query waiting_query, 
    l.lock_table waiting_table_lock, 
    b.trx_id blocking_trx_id, 
    b.trx_mysql_thread_id blocking_thread, 
    SUBSTRING( 
        p. HOST, 
        1, 
        INSTR(p. HOST, ':') - 1 
    ) blocking_host, 
    SUBSTRING(p. HOST, INSTR(p. HOST, ':') + 1) blocking_port, 
 
IF (p.COMMAND = 'Sleep', p.TIME, 0) idel_in_trx, 
 b.trx_query blocking_query 
FROM 
    information_schema.INNODB_LOCK_WAITS w 
INNER JOIN information_schema.INNODB_TRX b ON b.trx_id = w.blocking_trx_id 
INNER JOIN information_schema.INNODB_TRX r ON r.trx_id = w.requesting_trx_id 
INNER JOIN information_schema.INNODB_LOCKS l ON w.requested_lock_id = l.lock_id 
LEFT JOIN information_schema. PROCESSLIST p ON p.ID = b.trx_mysql_thread_id 
ORDER BY 
    wait_time DESC;