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Re: Expected accuracy of planner statistics

From: "John D(dot) Burger" <john(at)mitre(dot)org>
To: Postgres General <pgsql-general(at)postgresql(dot)org>
Subject: Re: Expected accuracy of planner statistics
Date: 2006-09-29 16:37:58
Message-ID: 2E204777-1D72-4044-8523-394A27EDF728@mitre.org (view raw or flat)
Thread:
Lists: pgsql-general
> src/backend/commands/analyze.c, around line 1930 as of CVS HEAD:
>
>             /*----------
>              * Estimate the number of distinct values using the  
> estimator
>              * proposed by Haas and Stokes in IBM Research Report  
> RJ 10025:

Thanks for the pointer, Tom.  I shouldn't have been surprised to find  
such a nice comment pointing me at the literature.

- John D. Burger
   MITRE


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