Re: Index Tuning Features - Mailing list pgsql-hackers

From Jaime Casanova
Subject Re: Index Tuning Features
Date
Msg-id c2d9e70e0610102244n11e7407etebb813b2ddfe698d@mail.gmail.com
Whole thread Raw
In response to Re: Index Tuning Features  ("Mark Woodward" <pgsql@mohawksoft.com>)
Responses Re: Index Tuning Features  ("Zeugswetter Andreas ADI SD" <ZeugswetterA@spardat.at>)
Re: Index Tuning Features  ("Mark Woodward" <pgsql@mohawksoft.com>)
List pgsql-hackers
On 10/10/06, Mark Woodward <pgsql@mohawksoft.com> wrote:
> I think the idea of "virtual indexes" is pretty interesting, but
> ultimately a lesser solution to a more fundimental issue, and that would
> be "hands on" control over the planner. Estimating the effect of an index
> on a query "prior" to creating the index is a great idea, how that is done
> is something different than building concensus that it should be done.
>
> Another thing that this brings up is "hints" to a query. Over the years, I
> have run into situation where the planner wasn't great.  It would be nice
> to try forcing different strategies on the planner and see if performance
> caan be improved.
>

you can do this by setting enable_"access_method" type parameters.

-- 
regards,
Jaime Casanova

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs and the universe trying
to produce bigger and better idiots.
So far, the universe is winning."                                      Richard Cook


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