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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3072) User documentation for Table Functions
Date Tue, 18 Sep 2007 15:02:43 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12528406
] 

Dag H. Wanvik commented on DERBY-3072:
--------------------------------------

Thanks for providing the docs, Rick. Just some initial comments:

* Should the docs show an example that actually implements the
  ResultSet interface (the current example passes on one from another
  driver)? Maybe adding a worked example to demos would be good,
  and just add a pointer in the docs. What level of JDBC ResultSet
  (2,3 or 4) is implemented doesn't matter as far as I understand, but
  maybe that fact should be called out explicitly.

* The description for VTICosting override:

 getEstimatedCostPerInstantiation

doesn't mention what units cost is expressed in. I know this is a bit
vague in Derby, but I think the docs should attempt some kind of
guidance. The interface source code doesn't speak about it either as 
far as I can see (default is 100000, but unit is unclear).


> User documentation for Table Functions
> --------------------------------------
>
>                 Key: DERBY-3072
>                 URL: https://issues.apache.org/jira/browse/DERBY-3072
>             Project: Derby
>          Issue Type: New Feature
>          Components: Documentation
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-3072-01-basic-aa.diff, derby-3072-01-basic-aa.tar
>
>
> This issue tracks changes to the user guides to describe table functions. This is the
work needed for the  "Documentation" section of the functional spec attached to DERBY-716.

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