help:how to write a planner_hook and other hooks in pg

From: 张中 <zhangzhong(at)taobao(dot)com>
To: <pgsql-hackers(at)postgresql(dot)org>
Subject: help:how to write a planner_hook and other hooks in pg
Date: 2009-08-24 00:47:13
Message-ID: 008701ca2454$6bd20820$3e16200a@yahoo.ali.com
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Hi all:

I am doing some experiments programming on PG. I tried to modify planner and
I find the ‘planner_hook’ in source code, but I don’t know how to use it.

Anybody knows? If any code sample, very precious.

Thanks

张茂森 ZhangMaosen

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