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https://issues.apache.org/jira/browse/DERBY-2487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Pendleton updated DERBY-2487:
-----------------------------------

    Attachment: finalReview.diff

Attached 'finalReview.diff' is the patch I intend to commit over the weekend.

I've been through it and fixed a number of tab/space issues, a number of
javadoc issues, and tried to improve comments in a few places.

There's still a lot of work remaining, but I feel this is worthy of a commit to 
the trunk,
where we can gain further experience with the feature and continue to improve 
it.


> Enhance Derby with EXPLAIN Functionality
> ----------------------------------------
>
>                 Key: DERBY-2487
>                 URL: https://issues.apache.org/jira/browse/DERBY-2487
>             Project: Derby
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 10.2.2.0
>            Reporter: Felix Beyer
>            Assignee: Bryan Pendleton
>            Priority: Minor
>         Attachments: Derby physical XPLAIN schema.png, finalReview.diff, 
> incorporateTrunkChanges.diff, refactorVisitor.diff, refactorVisitor.diff, 
> removeSourceDepth.diff, RSProtocolNew.pdf, rts.xls, small logical xplain 
> schema.pdf, startRegressionTest.diff, startRegressionTest.diff, 
> startUpgradeTests.diff, updateRegressionTests.diff, 
> updateRegressionTests.diff, usage.txt, userSchemaPrototyping.diff, 
> userSchemaPrototyping.diff, userSchemaPrototyping.diff, xplain_patch_v1.txt, 
> xplainClasses.pdf
>
>
> This enhancement extends Derby with EXPLAIN functions. Users want to have 
> more feedback than they`re getting with the current RuntimeStatistics 
> facility. This extension is based on the 
> RuntimeStatistics/ResultSetStatistics functions / classes. 

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