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

Thanks, it's helpful.

The flowchart is a very good point to start.

Cheers,
Soroosh

On Sat, May 18, 2013 at 7:56 PM, Atri Sharma <atri(dot)jiit(at)gmail(dot)com> wrote:

>
>
> Sent from my iPad
>
> On 18-May-2013, at 20:49, "Dickson S. Guedes" <listas(at)guedesoft(dot)net>
> wrote:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
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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/
> >
>
> Oh yes, I am in love with that flow chart.It is so easy and expressive!
>
> Regards,
>
> Atri