Re: Huge difference in query performance between 8.3 and 8.4 (possibly) - Mailing list pgsql-performance

Robin Houston escribió:

> We have a query that runs very slowly on our 8.3 database. (I can't
> tell you exactly how slowly, because it has never successfully run to
> completion even when we left it running overnight.) On the 8.4
> database on my laptop, it runs in about 90 seconds. Of course there
> are several differences between the two instances, but I wonder
> whether query planning improvements in 8.4 could essentially account
> for it.

Of course.  Great news.  Congratulations.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.