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Re: Expected accuracy of planner statistics - Mailing list pgsql-general

From John D. Burger
Subject Re: Expected accuracy of planner statistics
Date
Msg-id 2E204777-1D72-4044-8523-394A27EDF728@mitre.org
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In response to Re: Expected accuracy of planner statistics  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
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> 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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