select id, user_id, title, content, body, time from push_message
insert into push_message
user_id,title,content,body,time,#{userId},#{title},#{content},#{body},#{time},
update push_message
user_id = #{userId},title = #{title},content = #{content},body = #{body},time = #{time},
where id = #{id}
delete from push_message where id = #{id}
delete from push_message where id in
#{id}