campaign_expired ENUM('Y','N') NOT NULL DEFAULT 'N',
campaign_locked ENUM('Y','N') NOT NULL DEFAULT 'Y',
campaign_ended VARCHAR(10) NOT NULL DEFAULT 0,
-locked_reason TINYBLOB,
+locked_reason TINYTEXT,
locked_timestamp VARCHAR(10) NOT NULL DEFAULT 0,
status ENUM('PENDING','ACTIVE','LOCKED') NOT NULL DEFAULT 'PENDING',
KEY(aid),