Re: hive sql tune

n I ask you that which compression codec do you use? > > > *发件人：* 老赵 > *发送时间：* 2014-12-08 13:12 > *收件人：* user > *主题：* hive sql tune > > Hello, > > I am working for a Telecommunicaton Service Provider Company,So I can > access the view logs of different users from a

回复: hive sql tune

You metioned that 'The dataformat in src_click is org.apache.hadoop.mapred.TextInputFormat and has been compressed .' Can I ask you that which compression codec do you use? 发件人： 老赵 发送时间： 2014-12-08 13:12 收件人： user 主题： hive sql tune Hello, I am working for a Telecommunicaton Servic

hive sql tune

Hello,I am working for a Telecommunicaton Service Provider Company,So I can access the view logs of different users from a specific area.Now I want to query the top 1000 PV sites.I wrote a UDF named : parse_top_domain to get the top domain of a host,like www1.google.com.hk -> google.com.hkand i