Excerpts from Matthew Wakeling's message of mar jun 01 05:55:35 -0400 2010:
> On Sun, 23 May 2010, David Jarvis wrote:
> > The measurement table indexes (on date and weather station) were not being
> > used because the only given date ranges (e.g., 1900 - 2009) were causing the
> > planner to do a full table scan, which is correct.
>
> I wonder if you might see some benefit from CLUSTERing the tables on the
> index.
Eh, isn't this a GIN or GiST index? I don't think you can cluster on
those, can you?
--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support