Re: benchmarking the query planner

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От Tom Lane
Тема Re: benchmarking the query planner
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Msg-id 13687.1229038695@sss.pgh.pa.us
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Ответ на Re: benchmarking the query planner  ("Robert Haas" <robertmhaas@gmail.com>)
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"Robert Haas" <robertmhaas@gmail.com> writes:
> On Thu, Dec 11, 2008 at 5:45 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Simon Riggs <simon@2ndQuadrant.com> writes:
>>> I would like it even more if there was a data type specific default.
>>> Currently we have a special case for boolean, but that's it.
>> 
>> No, we don't (or if we do I'd be interested to know where).

> utils/adt/selfuncs.c, get_variable_numdistinct

That's got nothing to do with stats collection; it's a fallback case
used if no stats are available.
        regards, tom lane


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