Nolan Cafferky <[EMAIL PROTECTED]> writes:
> After some more digging on the mailing list, I found some comments on 
> effective_cache_size.  Bringing it up from the default of 1000 does pust 
> the estimated cost for the index scan below that of the sequential scan, 
> but not by much. 

The first-order knob for tuning indexscan vs seqscan costing is
random_page_cost.  What have you got that set to?

                        regards, tom lane

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