CREATE TABLE IF NOT EXISTS ajxp_feed (
  id integer NOT NULL primary key autoincrement,
  edate integer NOT NULL,
  etype text NOT NULL,
  htype text NOT NULL,
  user_id text NOT NULL,
  repository_id text NOT NULL,
  user_group text,
  repository_scope text,
  repository_owner text,
  content blob NOT NULL,
  UNIQUE (edate,htype,user_id,repository_id)
);