Hive 層次查詢

使用窗口函數：NTILE SELECT cookieid, createtime, pv, NTILE(2) OVER(PARTITION BY cookieid ORDER BY createtime) AS rn1,--分組內將數據分紅2片 NTILE(3) OVER(PARTITION BY cookieid ORDER BY createtime) AS rn2, --分組內將數據分紅3片

>>阅读原文<<