I've got a table that tracks expiration dates. Currently, if the record hasn't expired, the column is stored as NULL. In order to find records that haven't expired, I search for "WHERE expire_at > NOW() OR expire_at IS NULL". This seems dirty, and I suspect it makes my indexes very angry.
I suppose I could pick some arbitrary future date (Dec 31 2999) to use in place of NULL. Is there a better way? Surely I'm not the first to run into this! Thanks, Norman -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
