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From "Ashish Thusoo (JIRA)" <>
Subject [jira] Commented: (HIVE-352) Make Hive support column based storage
Date Thu, 23 Apr 2009 13:31:31 GMT


Ashish Thusoo commented on HIVE-352:

Can we also get some numbers on the amount of memory usage?

Also can you give more details about the experiment. Was this just a hdfs read or the measurement
of a Hive query?

> Make Hive support column based storage
> --------------------------------------
>                 Key: HIVE-352
>                 URL:
>             Project: Hadoop Hive
>          Issue Type: New Feature
>            Reporter: He Yongqiang
>            Assignee: He Yongqiang
>         Attachments: 4-22 performace2.txt, 4-22 performance.txt, 4-22 progress.txt, hive-352-2009-4-15.patch,
hive-352-2009-4-16.patch, hive-352-2009-4-17.patch, hive-352-2009-4-19.patch, hive-352-2009-4-22-2.patch,
hive-352-2009-4-22.patch, hive-352-2009-4-23.patch, HIve-352-draft-2009-03-28.patch, Hive-352-draft-2009-03-30.patch
> column based storage has been proven a better storage layout for OLAP. 
> Hive does a great job on raw row oriented storage. In this issue, we will enhance hive
to support column based storage. 
> Acctually we have done some work on column based storage on top of hdfs, i think it will
need some review and refactoring to port it to Hive.
> Any thoughts?

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