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From "Kathey Marsden (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-4115) Provide a way to drop statistics information
Date Mon, 02 Apr 2012 21:05:28 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kathey Marsden updated DERBY-4115:
----------------------------------

    Issue & fix info: High Value Fix

>Has this feature never been implemented due to lack of demand, or are there potential
issues that haven't been noted in this JIRA? 

I filed it in response to a specific user case where it would have been helpful.   Now with
automatic index stat it is more needed.  I think it hasn't been picked up before now because
folks just haven't had the bandwidth and it is not a bug so doesn't get reviewed often with
triage. I think it would be a great addition and am marking it High Value Fix in case anyone
finds that inspiring #:)
                
> Provide a way to drop statistics information
> --------------------------------------------
>
>                 Key: DERBY-4115
>                 URL: https://issues.apache.org/jira/browse/DERBY-4115
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.6.1.0
>            Reporter: Kathey Marsden
>
> Now that DERBY-269 has been resolved,  users can update statistics, but once they do,
they are committed to using and maintaining the statistics, even if it doesn't improve performance
or they have difficulty maintaining the statistics on a regular basis.  It would be good to
have a way to drop statistics information so that users could revert to the prior behavior
if needed.

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