Re: Road map to study about fetching a set of tuples - novice!

From: "Dickson S(dot) Guedes" <listas(at)guedesoft(dot)net>
To: Soroosh Sardari <soroosh(dot)sardari(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Atri Sharma <atri(dot)jiit(at)gmail(dot)com>
Subject: Re: Road map to study about fetching a set of tuples - novice!
Date: 2013-05-18 15:19:35
Message-ID: 51979C07.8020204@guedesoft.net
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Em 18-05-2013 11:40, Atri Sharma escreveu:
> On 18-May-2013, at 20:01, Soroosh Sardari
> <soroosh(dot)sardari(at)gmail(dot)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/

[]s
- --
Dickson S. Guedes
mail/xmpp: guedes(at)guedesoft(dot)net - skype: guediz
http://guedesoft.net - http://www.postgresql.org.br
http://github.net/guedes - twitter: @guediz
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