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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2385) Local Mode can be more aggressive if LIMIT optimization is on
Date Tue, 23 Aug 2011 04:35:29 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-2385:
---------------------------------

    Status: Open  (was: Patch Available)

@Siying: I get a test failure in TestNegativeCliDriver.autlocal1. Can you please take a look?
Thanks.

> Local Mode can be more aggressive if LIMIT optimization is on
> -------------------------------------------------------------
>
>                 Key: HIVE-2385
>                 URL: https://issues.apache.org/jira/browse/HIVE-2385
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Siying Dong
>            Assignee: Siying Dong
>            Priority: Minor
>         Attachments: HIVE-2385.1.patch
>
>
> Local mode now depends on total input data, but for LIMIT queries with no filtering,
the data actually scanned can be much less and it's relatively predictable. We can place local
mode more aggressively.

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