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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive" by PrasadChakka
Date Wed, 11 Mar 2009 17:58:48 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 PrasadChakka:

   * [wiki:/Performance Hive Performance]
   * [wiki:/Presentations Presentations About Hive]
   * [wiki:/PoweredBy A List of Sites and Applications Powered by Hive]
+  * [wiki:/FAQ Frequently Asked Questions on IRC/mailing list]
  = What is Hive =
  [http://hadoop.apache.org/hive/ Hive] is a data warehouse infrastructure built on top of
Hadoop that provides tools to enable easy data summarization, adhoc querying and analysis
of large datasets data stored in Hadoop files. It provides a mechanism to put structure on
this data and it also provides a simple query language called QL which is based on SQL and
which enables users familiar with SQL to query this data. At the same time, this language
also allows traditional map/reduce programmers to be able to plug in their custom mappers
and reducers to do more sophisticated analysis which may not be supported by the built in
capabilities of the language.

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