id id, id chat_id, history_code, user_id, COALESCE(user_nickname, '') user_nickname, COALESCE(user_avatar, '') user_avatar, COALESCE(robot_code, '') robot_code, role, content, create_time, update_time SELECT FROM ai_chat AND history_code = #{history_code} AND user_id = #{user_id} AND robot_code = #{robot_code} AND role = #{role} ORDER BY update_time ASC INSERT INTO ai_chat (history_code, content , user_id , user_nickname , user_avatar , robot_code , role ) VALUES (#{history_code}, #{content} , #{user_id} , #{user_nickname} , #{user_avatar} , #{robot_code} , #{role} ) DELETE FROM ai_chat WHERE history_code = #{history_code}