[syslog-ng] Dumping syslog-ng log files to mysql db

Hello, With recent addition of MYSQL DB to my logging infrastructure, would I be able to dump my previous logs collected from the by syslog-ng on the database? If I configure the source to be the local log file that has logs collected from devices over the network and the destination to be the DB, would I be loosing the source IP address when I log these to the DB and instead get the source of the message to be localhost or 127.0.0.1 instead of the original source? -- Thanks and regards, Anup