[jira] Updated: (DERBY-4587) Add tools for improved analysis and understanding of query plans and execution statistics

["C.S. Nirmal J. Fernando (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-4587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

C.S. Nirmal J. Fernando updated DERBY-4587:
-------------------------------------------

    Attachment: Source.rar
                Read_Me.txt

Hi All,

I have attached files of the prototype of Derby Query Plan Explainer  which is done to show the feasibility of the project.

You can simply view the screen shot or you can open the .xml file inside the "Source" folder from your web browser.

Highly appreciate your comments !!

Thanks !!

> Add tools for improved analysis and understanding of query plans and execution statistics
> -----------------------------------------------------------------------------------------
>
>                 Key: DERBY-4587
>                 URL: https://issues.apache.org/jira/browse/DERBY-4587
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL, Tools
>            Reporter: Bryan Pendleton
>            Assignee: Bryan Pendleton
>         Attachments: PostgreSQL license.jpg, Read_Me.txt, Source.rar
>
>
> I think it would be great to see some work in the area of tools for helping
> with the analysis of complex query execution. Quite frequently, users of
> Derby have trouble comprehending (a) how their query is being translated
> into a query plan by the optimizer, and (b) what the execution-time resource
> usage of the various parts of the query is.
> There are low-level features in Derby which capture this information and
> record it, such as logQueryPlan, and the XPLAIN tables, but there is a lot
> of opportunity for designing higher-level tools which can process the query
> plan and execution statistics information and present it in a more
> comprehensible fashion. 

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