Re: Which file does the SELECT?

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От Vaibhav Kaushal
Тема Re: Which file does the SELECT?
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Msg-id AANLkTinVPVtiFvNS7D-BLMtR_YU=26xppwKOcGcJ4i9P@mail.gmail.com
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Ответ на Re: Which file does the SELECT?  (Peter Eisentraut <peter_e@gmx.net>)
Ответы Re: Which file does the SELECT?  (Hitoshi Harada <umi.tanuki@gmail.com>)
Re: Which file does the SELECT?  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: Which file does the SELECT?  (Vaibhav Kaushal <vaibhavkaushal123@gmail.com>)
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Thanks for the reply. 

So if I am not wrong, I will have to understand the whole querying process in detail? If it is so, then where do I start from? 

-Vaibhav

On Sun, Oct 10, 2010 at 1:41 PM, Peter Eisentraut <peter_e@gmx.net> wrote:
On sön, 2010-10-10 at 13:32 +0530, Vaibhav Kaushal wrote:
> I have gone through the source code a bit but I wanted to know that
> which file contains the code that performs the final SLECTION after
> the optimizer has created the final plan? I mean which part of the
> executor is responsible for the SELCT to be run?

That depends on what plan was chosen for the SELECT, since the executor
is primarily organized by plan node type, independent of which statement
caused the plan to be generated.


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