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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hive/HiveQL/UDF" by ZhengShao
Date Thu, 22 Jan 2009 23:35:22 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by ZhengShao:
http://wiki.apache.org/hadoop/Hive/HiveQL/UDF

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  }}}
  
  
- === Built in Aggregate (GROUP BY) Functions ===
+ == Built in Aggregate (GROUP BY) Functions ==
  The following are built in aggregate functions are supported in hive: 
  ||<10%>'''Return Type'''||<10%>'''Name(Signature)'''||'''Description||
  ||BIGINT ||count(1), count(DISTINCT col [, col]...)||count(1) returns the number of members
in the group, whereas the count(DISTINCT col) gets the count of distinct values of the columns
in the group||

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