SELECT GET_LOCK('1577fd2bba77ac3b78851e511e12c814', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'qv6cuo7h053olnp5phqaeccn4g2qd6e7'
DELETE FROM `ci_sessions` WHERE `id` = 'qv6cuo7h053olnp5phqaeccn4g2qd6e7'
SELECT RELEASE_LOCK('1577fd2bba77ac3b78851e511e12c814') AS ci_session_lock