Nassib Nassar <nas...@renci.org> wrote: 
 
> In this example it looks to me like the planner is choosing a Seq
> Scan resulting in 18x running time compared to running it with
> enable_seqscan = 'off'.
 
I would try these settings:
 
random_page_cost = 2
cpu_tuple_cost = 0.02
 
Based on your estimated cost versus actual run times, there's a good
chance they'll better model your environment, and serve you well in
general.
 
-Kevin

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