I assume you have read everything on the developers web page:
http://developer.postgresql.org/index.php
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ljguo_1234 wrote:
> Hello, Mr. Tom Lane
> I am a chinese student studied in Harbin institute of technology. I want join to
>PostgreSQL Global Development Group and I want work on the planner/optimizer. I have
>been reading the source code for 2 months. There many data strucutres I can't
>understand. Can you tell me what document I must read first. If you have documents
>about planner/optimizer of PostgreSQL, send me please.
> a doctor student English name is Mohan. Chinese name is Guo long jiang.
> Thank you very much! 04/09/2002
> ______________________________________
>
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