[syslog-ng] handling errors with sql inserts

Hello, I am parsing some of my log messages into different database columns using the sql() function, and I have noticed that when there is an insert error into the database no further logs for that host make it to the db. In fact, syslog-ng keeps attempting the insert, and logs the insert error indefinitely. I couldn't find a way to gracefully handle these sorts of errors in the docs. I'd like to be able to specify an action on a database insert failure (log message to a different log and stop trying to insert, for example). But I do not want a single insert failure to stop all subsequent inserts for that host. What are my options here? I'm currently using OSE 3.0.4. Thanks for your help. --Bob