Re: BUG #16624: Query Optimizer - Performance bug related to predicate simplification

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От Peter Geoghegan
Тема Re: BUG #16624: Query Optimizer - Performance bug related to predicate simplification
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Msg-id CAH2-WznKMCs=g13dqo-8GgMdD5ik6HZ798B41_mnNnRMzFWLwA@mail.gmail.com
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Ответ на Re: BUG #16624: Query Optimizer - Performance bug related to predicate simplification  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: BUG #16624: Query Optimizer - Performance bug related to predicate simplification  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Fri, Sep 18, 2020 at 2:22 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Unfortunately, that's a viewpoint that is not going to win you a lot of
> converts.

I think that this perspective is held by all groups that works on
query optimization, not just the PostgreSQL developers:

https://use-the-index-luke.com/sql/where-clause/obfuscation/math

Evidently nobody even tries to do this stuff.

-- 
Peter Geoghegan

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