SELECT GET_LOCK('a7f35e4f3e8bdba68c523ddc1bfb3351', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'bfdhn0n6rjaq5pmca1kagpfjnu1avfc6'
DELETE FROM `ci_sessions` WHERE `id` = 'bfdhn0n6rjaq5pmca1kagpfjnu1avfc6'
SELECT RELEASE_LOCK('a7f35e4f3e8bdba68c523ddc1bfb3351') AS ci_session_lock