SELECT GET_LOCK('e6ee929afa815afc2780565d6ba5fc5c', 300) AS ci_session_lock
SELECT `data` FROM `ci_sessions` WHERE `id` = 'io156ga6hjl9rauf0o079i0klrnii5hb'
DELETE FROM `ci_sessions` WHERE `id` = 'io156ga6hjl9rauf0o079i0klrnii5hb'
SELECT RELEASE_LOCK('e6ee929afa815afc2780565d6ba5fc5c') AS ci_session_lock