FEED_RENDERED     -> FEED_CONTENT
FEED_AGGREGATE    -> drop!
FEED_THREEOFOURS  -> FEED_CODE304
FEED_KHARMA       -> FEED_RATING

drop:
   FEED_TYPE varchar(10),
   FEED_VERSION varchar(10),
   FEED_ABOUT varchar(255),
   FEED_LINK varchar(255),
   FEED_DESCRIPTION text,
   FEED_IMAGE text,
   FEED_TEXTINPUT text,
   FEED_LANGUAGE varchar(10),
   FEED_PUBLISHER varchar(255),
   FEED_CREATOR varchar(255),
   FEED_RIGHTS varchar(255),
   FEED_PUBDATE datetime,
   FEED_UPDATEPERIOD varchar(255),
   FEED_UPDATEFREQ tinyint(24),
   FEED_UPDATEBASE datetime,
