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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-7063) Optimize for the Top N within a Group use case
Date Mon, 30 Jun 2014 05:26:24 GMT


Hive QA commented on HIVE-7063:

{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 5671 tests executed
*Failed tests:*

Test results:
Console output:
Test logs:

Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 2 tests failed

This message is automatically generated.


> Optimize for the Top N within a Group use case
> ----------------------------------------------
>                 Key: HIVE-7063
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Harish Butani
>            Assignee: Harish Butani
>         Attachments: HIVE-7063.1.patch, HIVE-7063.2.patch, HIVE-7063.3.patch
> It is common to rank within a Group/Partition and then only return the Top N entries
within each Group.
> With Streaming mode for Windowing, we should push the post filter on the rank into the
Windowing processing as a Limit expression.

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