Sounds like nonsense to me...If you have "half"
statistics, then the optimizer is going to use
defaults for the others, which if anything, would (or
should) lead to less optimal access paths....
It sounds like a weird attempt to get toward a first
rows kind of approach, ie they want a rule type
approach to small tables to keep indexes being used
...
Demand an explanation.
hth
connor
- "Browett, Darren" <dbrowett_at_city.coquitlam.bc.ca>
wrote: > I have just received some notes from one our
> applications support, and they
> suggest after I compute statistics for the objects
> within their schema, that
> I then
> delete those statistics where num_rows * avg_row_len
> < 65000 ??
>
> What affect could this possibly have on the system ?
>
> I thought you would want statistics on all objects
> for the optimizer to
> function efficently
>
> Thank you in advance
>
> Darren
>
>
> -------------------------------------------------
> Darren Browett P.Eng This message was
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>
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Received on Tue Jun 05 2001 - 02:43:04 CDT
