hadoop-common-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive/StatsDev" by ahmedaly
Date Thu, 29 Jul 2010 18:49:25 GMT
Dear Wiki user,

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

The "Hive/StatsDev" page has been changed by ahmedaly.
http://wiki.apache.org/hadoop/Hive/StatsDev?action=diff&rev1=52&rev2=53

--------------------------------------------------

  }}}
  then statistics are gathered for the 4 partitions as well as the table itself.
  
- The user may view the stored statistics by issuing the DESCRIBE command.
+ The user can view the stored statistics by issuing the [[http://wiki.apache.org/hadoop/Hive/LanguageManual/DDL?highlight=(describe)#Describe_Partition|DESCRIBE]]
command. Suppose the user issues the analyze command for the whole table Table1. If the user
issues the following commands:
+ {{{
+ DESCRIBE EXTENDED TABLE1;
+ DESCRIBE EXTENDED TABLE1 PARTITION(ds='2008-04-08', hr=12);
+ DESCRIBE EXTENDED TABLE1 PARTITION(ds='2008-04-09', hr=11);
+ DESCRIBE EXTENDED TABLE1 PARTITION(ds='2008-04-08', hr=12);
+ DESCRIBE EXTENDED TABLE1 PARTITION(ds='2008-04-09', hr=11);
+ }}}
  

Mime
View raw message