Mybatis 多条数据更新

      update
       T_EQUI_VIDEO_RELA t
       set
       t.dev_coor = CASE
       <foreach collection="list" item="m" index="index">
           when t.rela_id = #{m.relaId} then #{m.coor}
       </foreach>
       END
       WHERE
       t.rela_id in
       <foreach collection="list" item="m" index="index" open="(" separator="," close=")">
           #{m.relaId}
       </foreach>