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https://issues.apache.org/jira/browse/DERBY-4121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12694240#action_12694240
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Kathey Marsden commented on DERBY-4121:
---------------------------------------

Based on Knut's comment. is it correct then to say that 
SYSCS_UTIL.SYSCS_UPDATE_STATISTICS should be run if there is a significant 
change in the number of rows or the number of unique values in an index?


> Documentation: more UPDATE_STATISTICS fixes needed for Reference Manual and 
> Tuning Derby
> ----------------------------------------------------------------------------------------
>
>                 Key: DERBY-4121
>                 URL: https://issues.apache.org/jira/browse/DERBY-4121
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 10.5.0.0
>            Reporter: Kim Haase
>            Priority: Minor
>
> Kathey Marsden comments on DERBY-3787:
> Not a show stopper for the release, but in beginning my buddy testing,
>  I noticed the examples should use CALL e.g.
> CALL SYSCS_UTIL.SYSCS_UPDATE_STATISTICS('SAMP','EMPLOYEE','PAY_DESC');
> CALL SYSCS_UTIL.SYSCS_UPDATE_STATISTICS('SAMP', 'EMPLOYEE', null);
> Also in the Tuning Guide under Working with Cardinality Statistics -> When 
> Cardinality Statistics Go Stale we should refer users to the 
> SYSCS_UTIL.SYSCS_UPDATE_STATISTICS stored procedure to update their 
> statistics and cross reference the reference guide.
> Myrna van Lunteren suggests a new issue for this, so I'm filing it.

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