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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1193) ensure sorting properties for a table
Date Fri, 26 Feb 2010 16:17:28 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12838914#action_12838914
] 

Edward Capriolo commented on HIVE-1193:
---------------------------------------

Also how can the optimizer take advantage of this? If we know data is sorted we could do some
aggressive pruning (if we know offsets) and short circuiting for some where conditions.

> ensure sorting properties for a table
> -------------------------------------
>
>                 Key: HIVE-1193
>                 URL: https://issues.apache.org/jira/browse/HIVE-1193
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>             Fix For: 0.6.0
>
>         Attachments: hive.1193.1.patch
>
>
> If a table is sorted, and data is being inserted into that - currently, we dont make
sure that data is sorted. That might be useful some downstream operations.
> This cannot be made the default due to backward compatibility, but an option can be added
for the same

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