com.woltlab.wcf/update_3.1_2.sql

   1 ALTER TABLE wcf1_comment_response DROP FOREIGN KEY commentID;
   2 ALTER TABLE wcf1_comment_response DROP KEY commentID;
   3 ALTER TABLE wcf1_comment_response ADD KEY (commentID, isDisabled, time);
   4 ALTER TABLE wcf1_comment_response ADD FOREIGN KEY (commentID) REFERENCES wcf1_comment (commentID) ON DELETE CASCADE;