Re: PREPARE / EXECUTE
От
Hans-Jürgen Schönig
Тема
Re: PREPARE / EXECUTE
Дата
Msg-id
3DB6D46A.5000903@cybertec.at
Список
Дерево обсуждения
Re: PREPARE / EXECUTE "Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at>
Re: PREPARE / EXECUTE Neil Conway <neilc@samurai.com>
This is exactly what we do in case of complex stuff. I know that it can help to reduce the problem for the planner. However: If you have explicit joins across 10 tables the SQL statement is not that readable any more and it is still slower than a prepared execution plan. I guess it is worth thinking about prepared plans somewhere on disk. Is there a way to transform ASCII -> plan? Hans Bruno Wolff III wrote: >On Wed, Oct 23, 2002 at 18:04:01 +0200, > Hans-Jürgen Schönig wrote: > > >>An example: >>I have a join across 10 tables + 2 subselects across 4 tables >>on the machine I use for testing: >> planner: 12 seconds >> executor: 1 second >> >>The application will stay the same forever. >>I could be 10 times faster if there was a way to load the execution plan >>into the backend. >> >> -- *Cybertec Geschwinde u Schoenig* Ludo-Hartmannplatz 1/14, A-1160 Vienna, Austria Tel: +43/1/913 68 09; +43/664/233 90 75 www.postgresql.at , cluster.postgresql.at , www.cybertec.at , kernel.cybertec.at
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