SELECT GET_LOCK('12d72b3bd4386e249be941a9ff6ec3ae', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'uj29q66pip7i314aka2e785hqros46fl'
DELETE FROM `ci_sessions` WHERE `id` = 'uj29q66pip7i314aka2e785hqros46fl'
SELECT RELEASE_LOCK('12d72b3bd4386e249be941a9ff6ec3ae') AS ci_session_lock