Re: Schema search for default operator classes (was: [ADMIN] Cross schema Primary Key Indexes problem with datatype in the public schema)

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org, cgg007(at)yahoo(dot)com
Subject: Re: Schema search for default operator classes (was: [ADMIN] Cross schema Primary Key Indexes problem with datatype in the public schema)
Date: 2006-02-09 12:42:48
Message-ID: 20060209124248.GC5234@surnet.cl
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Tom Lane wrote:

> Given that we only allow one default opclass for a datatype regardless
> of schema (see DefineOpClass), it's not really necessary for
> GetDefaultOpClass to restrict its search. I can think of some corner
> cases involving multiple binary-compatible-datatype matches where the
> restriction might give a unique answer when an unrestricted search would
> not, but I kinda doubt this would ever arise in practice.

How about doing the constrained search first, and revert to the
unconstrained behavior if it doesn't find the desired opclass?

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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