select t.* from (select a.*, row_number() over (partition by 需要分组的字段 order by 更新时间 desc) rw from 表 a) t where t.rw = 1
select t.* from (select a.*, row_number() over (partition by 需要分组的字段 order by 更新时间 desc) rw from 表 a) t where t.rw = 1
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