where to declare system operators

From: "Jackson, DeJuan" <djackson(at)cpsgroup(dot)com>
To: PGSQL Hackers <pgsql-hackers(at)hub(dot)org>
Subject: where to declare system operators
Date: 1999-02-04 23:06:29
Message-ID: F10BB1FAF801D111829B0060971D839F6478AC@cpsmail
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Could someone point me to where the operators are defined?
I'm trying to define a lower for varchar. "Why?", you may ask, so that
I can create a functional index on the lower of a varchar column.
Thanks,
-DEJ

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