how to use advanced gist options

From: Sergej Galkin <sergej(dot)galkin(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: how to use advanced gist options
Date: 2010-03-14 13:50:41
Message-ID: dfebc1f11003140650v1ebeca9amc6ec3beac52ecbda@mail.gmail.com
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Hello all,

Now I'm trying to realize index in GiST. Everything is Ok, but I would like
to know about advanced index programming options.
1) For example - can I delete entry in my picksplit procedure ?
2) Or to add logical conditions - when picksplit node ? For exampe change
default "when number of entries of node is much than XX, split node" - to
"when number of entries which element "state" is "on" is much than XX, split
node ?"

Faithfully,
Sergej

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