SELECT GET_LOCK('41f3c5968d1a3c636b77d35361a2fddb', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'gii6crj8ugkmpp1q7r6dcr8i9ek77u53'
DELETE FROM `ci_sessions` WHERE `id` = 'gii6crj8ugkmpp1q7r6dcr8i9ek77u53'
SELECT RELEASE_LOCK('41f3c5968d1a3c636b77d35361a2fddb') AS ci_session_lock