Re: Query to slow
От | Robert Treat |
---|---|
Тема | Re: Query to slow |
Дата | |
Msg-id | 1061817712.3390.212.camel@camel обсуждение исходный текст |
Ответ на | Query to slow (Rhaoni Chiu Pereira <rhaoni@sistemica.info>) |
Список | pgsql-admin |
On Mon, 2003-08-25 at 08:17, Rhaoni Chiu Pereira wrote: > Hi List, > > As I said before, I'm not a DBA " yet" , but I'm learning ... and I > already have a PostgreSQL running, so I have to ask some help... > I got a SQL as folows : > <snip> > > I have created the decode, NVL and DIVIDE functions.... the problem is that the > where condition makes this query to slow ( about 4 min ) and the same query in > my Oracle database takes less than 40 seconds. I have tried to isolate the > problem taking off some fields and I left justa the two first fields in the > query ( ftnfco00.estado_cliente , ftcofi00.grupo_faturamento ) and it still > taking almost 4 min to return. Does anyone have a hint to give me to make it > faster ? > Make sure you have run vacuum analyze on your database, if it is still slow post "explain analyze <query>" to pgsql-performance mailing list Robert Treat -- Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL
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