Re: [HACKERS] Slow count(*) again...

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От Robert Haas
Тема Re: [HACKERS] Slow count(*) again...
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Msg-id AANLkTi=V9J0Z-QTM=yJUctR7ECFRE3CJYB8NPXcxzuTO@mail.gmail.com
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Ответ на Re: [HACKERS] Slow count(*) again...  (Mladen Gogala <mladen.gogala@vmsinfo.com>)
Список pgsql-performance
On Thu, Feb 3, 2011 at 7:39 PM, Mladen Gogala <mladen.gogala@vmsinfo.com> wrote:
>  reality. As a matter of fact, Oracle RDBMS on the same machine will
> regularly beat PgSQL in performance.
>  That has been my experience so far.   I even posted counting query results.

It sure is, but those count queries didn't run faster because of query
planner hints.  They ran faster because of things like index-only
scans, fast full index scans, asynchronous I/O, and parallel query.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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