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Date: Tue, 8 Sep 2009 01:54:57 -0700 (PDT)
From: "Knut Anders Hatlen (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-4363) Add simple benchmark for measuring
 GROUP BY performance
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    [ https://issues.apache.org/jira/browse/DERBY-4363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12752394#action_12752394 ] 

Knut Anders Hatlen commented on DERBY-4363:
-------------------------------------------

Thanks, Bryan. That sounds like a great plan to me. I'll see if I can find time to run the tests too.

> Add simple benchmark for measuring GROUP BY performance
> -------------------------------------------------------
>
>                 Key: DERBY-4363
>                 URL: https://issues.apache.org/jira/browse/DERBY-4363
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Test, Tools
>            Reporter: Bryan Pendleton
>            Assignee: Bryan Pendleton
>            Priority: Minor
>         Attachments: multiColumnBenchmark.diff, simpleBenchmark.diff
>
>
> As part of ROLLUP implementation (DERBY-3002), it will be helpful to be able to measure the performance of GROUP BY.
> Using the o.a.dT.perf.clients framework, this sub-task proposes to add a GroupByClient to the performance runner
> library; the GroupByClient will run GROUP BY statements against the Wisconsin benchmark database.

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