Dan,

> Exactly..  What I think would be much more productive is to use the
> great amount of information that PG tracks internally and auto-tune the
> parameters based on it.  For instance:

*Everyone* wants this.  The problem is that it's very hard code to write 
given the number of variables.  I'm working on it but progress is slow, 
due to my travel schedule.

-- 
--Josh

Josh Berkus
PostgreSQL @ Sun
San Francisco

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

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