t_com_personnel 表有com_id有多条时,需要根据quarter 排序取最新的一条
select * from (select * from t_com_personnel order by quarter desc) as a group by com_id
t_com_personnel 表有com_id有多条时,需要根据quarter 排序取最新的一条
select * from (select * from t_com_personnel order by quarter desc) as a group by com_id
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