From: | Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it> |
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To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | PostgreSQL Hackers and Developers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: On Scalability |
Date: | 2010-07-30 19:50:41 |
Message-ID: | AANLkTimjdpEYeWk54yC1H9RxrUnETy2AAswg2_qw7-H_@mail.gmail.com |
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Lists: | pgsql-hackers pgsql-performance |
2010/7/30 Josh Berkus <josh(at)agliodbs(dot)com>:
>
>> Is there anyone who knows whether those algorithms are linear or not?
>
> Read the code? It's really very accessible, and there's lots and lots
> of comments. While the person who wrote the code is around, isn't it
> better to see the real implementation?
If the programmer(s) who wrote that part is around, a simple hint would suffice.
Even an hint to where look into the code would be very appreciated: the query
planner is not as simple as the "ls" command (which is not that simple any
more, though).
It looks like I need to go the hard way ...
Starting from postgresql-8.4.4/src/backend/optimizer
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Vincenzo Romano at NotOrAnd Information Technologies
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