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From "Samuel Guo (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-705) Let Hive can analyse hbase's tables
Date Wed, 12 Aug 2009 03:02:15 GMT

    [ https://issues.apache.org/jira/browse/HIVE-705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742191#action_12742191
] 

Samuel Guo commented on HIVE-705:
---------------------------------

@Ashish

Thank you for your comment. 
It is difficult to infer the columns list from a sparse column hbase table, we do not know
exactly how many columns in a given hbase table. We just know all the column families of a
given hbase table. 
Also, the data in hbase are all raw bytes. If we do not explicitly stat the schema mapping,
we will lose the information how to serialize/deserialize the data from raw bytes.

> Let Hive can analyse hbase's tables
> -----------------------------------
>
>                 Key: HIVE-705
>                 URL: https://issues.apache.org/jira/browse/HIVE-705
>             Project: Hadoop Hive
>          Issue Type: New Feature
>            Reporter: Samuel Guo
>         Attachments: hbase-0.19.3-test.jar, hbase-0.19.3.jar, HIVE-705_draft.patch
>
>
> Add a serde over the hbase's tables, so that hive can analyse the data stored in hbase
easily.

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