| From: | N <ceecmm(at)gmail(dot)com> |
|---|---|
| To: | Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com> |
| Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: What query optimisations are included in Postgresql? |
| Date: | 2013-11-28 18:27:48 |
| Message-ID: | CAL1O4=V12=KtUQ7bt0xMF6onRo_rZjk1dB244a=O=y7cyOia=A@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-general |
Thanks, but still not same. For example, is there subquery flattening
, is there any other query re-write ? is there website or books have
such detail ?
On Thu, Nov 28, 2013 at 5:54 PM, Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com> wrote:
> On 11/28/2013 09:46 AM, N wrote:
>>
>> Are there documents specifying the query optimisations in Postgresql
>> like the SQLite (http://www.sqlite.org/optoverview.html)?
>
>
> http://www.postgresql.org/docs/9.3/interactive/overview.html
> http://www.postgresql.org/docs/9.3/interactive/performance-tips.html
>
>>
>>> From the web, I can say, there are index and join optimisation, but
>>
>> are there anything others like Subquery flattening?
>>
>> thanks.
>>
>> Bentley.
>>
>>
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)gmail(dot)com
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