text: -- triggerA.test
  -- 
  -- db eval {
  --      DELETE FROM result2;
  --      CREATE TRIGGER r5d INSTEAD OF DELETE ON v5 BEGIN
  --        INSERT INTO result2(a,b) VALUES(old.x, old.b);
  --      END;
  --      DELETE FROM v5 WHERE x=5;
  --      SELECT * FROM result2;
  -- }
  DELETE FROM result2;
  CREATE TRIGGER r5d INSTEAD OF DELETE ON v5 BEGIN
  INSERT INTO result2(a,b) VALUES(old.x, old.b);
  END;
  DELETE FROM v5 WHERE x=5;
  SELECT * FROM result2;