SELECT GET_LOCK('9724781ec5073d212fe51dc05a12285a', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'mr8ca1b8srl6m7je6q06cneq8dtliq0e'
DELETE FROM `ci_sessions` WHERE `id` = 'mr8ca1b8srl6m7je6q06cneq8dtliq0e'
SELECT RELEASE_LOCK('9724781ec5073d212fe51dc05a12285a') AS ci_session_lock