ROW_NUMBER() OVER (PARTITION BY 字段1 ORDER BY 字段2 DESC)
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ROW_NUMBER() OVER (PARTITION BY 字段1 ORDER BY 字段2 DESC)
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這個用法在mysql 中沒有,就是對數據先根據字段1聚合,在根據字段二排序
select * from (SELECT player_id , DATE(timestamp ) as dt ,ROW_NUMBER() OVER (PARTITION BY player_id ORDER BY timestamp DESC) AS rn, FROM `heidao-market.mafia1_ods.game_log_login` WHERE DATE(timestamp) >= '2020-01-10' and DATE(timestamp) <= '2020-01-11')where rn= 1總結
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