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On 18-May-2013, at 20:49, "Dickson S. Guedes" <listas@guedesoft.net> wrote:
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> Em 18-05-2013 11:40, Atri Sharma escreveu:
>> On 18-May-2013, at 20:01, Soroosh Sardari
>> <soroosh.sardari@gmail.com> wrote:
>>
>>> Hi
>>>
>>> I was tracing a simple SELECT query to find how pg works for
>>> fetching tuples. but I'm totally lost in the code. Could you
>>> help me to understand under the hood? I know about parsing and
>>> planning parts, my actual problem is executer. If you show me a
>>> road map to study, I would appreciate it.
>>>
>>>
>>
>> You can probably try:
>>
>>
http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/executor/README;h=8afa1e3e4a7596475cbf19a76c88d48a04aeef02;hb=HEAD
>>
>
>
> There
>>
>>
> is a cool flowchart too:
>
> http://www.postgresql.org/developer/backend/
>
Oh yes, I am in love with that flow chart.It is so easy and expressive!
Regards,
Atri