[CDBI] Null Column Causing Repeated DB Calls

I'm optimizing one of my cdbi classes and found that one of my columns often contains a NULL value, and when I iterate through a set of results from a search_* query, when I attempt to do assignments of that attribute, cdbi is making another call to the db just to retrieve that value, when it's value is NULL slowing things down considerably.

I'm about to try to override the accessor for that column, but I'm wondering if there's a way to address this issue within cdbi in general.

Anybody have any advice on the matter?

Thanks.

Eric

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