Re: What query optimisations are included in Postgresql?

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.klaver@gmail.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.klaver@gmail.com