hive進階，以及hive處理日誌文件實例，數據傾斜處理等hive進階內容

hive進階 case-when-then-else select id,name,age1, case when age1 < 18 then ‘小屁孩’ when age1 >=18 then ‘成年人’ else ‘aa’ end as age222222 from person; hive server2 配置 <property> <name>hive.server2.thrift.

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