SELECT GET_LOCK('4bccdc97dcb840e5a9e47cb824b3210d', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = '6a8bcpfqgj7i643k95j9okvffah2jr1m'
DELETE FROM `ci_sessions` WHERE `id` = '6a8bcpfqgj7i643k95j9okvffah2jr1m'
SELECT RELEASE_LOCK('4bccdc97dcb840e5a9e47cb824b3210d') AS ci_session_lock