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Re: how the planner decides between bitmap/index scan

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Ops, found it: 

http://www.postgresql.org/docs/8.4/static/view-pg-stats.html

("correlation" column)

I guess it would be worth pointing it out in the planner docs...



Scara Maccai wrote:
> Hi,
>
> does the planner know how "scattered" rows are? If yes: where is this 
> info stored?





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