| From: | Daniel Bausch <bausch(at)dvs(dot)tu-darmstadt(dot)de> |
|---|---|
| To: | Sébastien Lorion <sl(at)thestrangefactory(dot)com> |
| Cc: | PostgreSQL <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: optimizer's cost formulas |
| Date: | 2013-04-10 10:08:15 |
| Message-ID: | 51653A0F.2020808@dvs.tu-darmstadt.de |
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| Lists: | pgsql-general |
Hi Sebastien,
> The tool to tweak the query planner parameters mentioned in the article
> sounds very useful. Can we download it somewhere, either as binary or
> source code ?
It is currently not publicly available, because it contains some
specifics (no secrets) of the experiments I did, the most prominent
being that it depends on a modified version of dbt3. The changes to
dbt3 in turn are even harder to share, because the master of dbt3 got
heavily modified in the meantime, making a rebase hard.
If you are still interested, please contact me off list.
Regards,
Daniel Bausch
--
Daniel Bausch
Wissenschaftlicher Mitarbeiter
Technische Universität Darmstadt
Fachbereich Informatik
Fachgebiet Datenbanken und Verteilte Systeme
Hochschulstraße 10
64289 Darmstadt
Germany
Tel.: +49 6151 16 6706
Fax: +49 6151 16 6229
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