Re: Air-traffic benchmark

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От Alvaro Herrera
Тема Re: Air-traffic benchmark
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Msg-id 20100107141638.GE4315@alvh.no-ip.org
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Ответ на Re: Air-traffic benchmark  (Alvaro Herrera <alvherre@commandprompt.com>)
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Alvaro Herrera escribió:

> No amount of tinkering is going to change the fact that a seqscan is the
> fastest way to execute these queries.  Even if you got it to be all in
> memory, it would still be much slower than the other systems which, I
> gather, are using columnar storage and thus are perfectly suited to this
> problem (unlike Postgres).  The talk about "compression ratios" caught
> me by surprise until I realized it was columnar stuff.  There's no way
> you can get such high ratios on a regular, row-oriented storage.

FWIW if you want a fair comparison, get InnoDB numbers.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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