I am confused after reading codes of PostgreSQL three week

From: hom <obsidianhom(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: I am confused after reading codes of PostgreSQL three week
Date: 2011-03-17 14:57:09
Message-ID: AANLkTimhCOqn-mf0UaEUyVj-+djp=CXpkORsGmpu8gZv@mail.gmail.com
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Hi,

I try to known how a database is implemented and I have been reading
PG source codes for a month.

Now, I only know a little about how PG work. :(

I just know PG work like this but I don't know why PG work like this. :( :(

even worse, I feel I can better understand the source code. it may be
that I could't split the large module into small piece which may help
to understand.

Is there any article or some way could help understand the source code ?

Thanks for help ~

--
Best Wishes!

                                     hom

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