[jira] Updated: (DERBY-2487) Enhance Derby with EXPLAIN Functionality

["Bryan Pendleton (JIRA)" <ji...@apache.org>]

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

Bryan Pendleton updated DERBY-2487:
-----------------------------------

    Attachment: removeSourceDepth.diff

Attached is 'removeSourceDepth.diff', the latest version of the patch proposal.
The primary change is that the 'sourceDepth' field is no longer present in the
SYSXPLAIN_RESULTSETS table. @author tags are also removed.

> 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, incorporateTrunkChanges.diff, removeSourceDepth.diff, RSProtocolNew.pdf, rts.xls, small logical xplain schema.pdf, startRegressionTest.diff, startRegressionTest.diff, startUpgradeTests.diff, updateRegressionTests.diff, updateRegressionTests.diff, usage.txt, 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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