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To: Scott Cain <cain@cshl.edu>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: finding indexed functions from pg_index 
In-reply-to: <Pine.GSO.4.05.10509201409020.23347-100000@phage.cshl.edu> 
References: <Pine.GSO.4.05.10509201409020.23347-100000@phage.cshl.edu>
Comments: In-reply-to Scott Cain <cain@cshl.edu>
	message dated "Tue, 20 Sep 2005 14:15:36 -0400"
Date: Tue, 20 Sep 2005 17:54:45 -0400
Message-ID: <8578.1127253285@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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Scott Cain <cain@cshl.edu> writes:
> What I haven't figure out is this: how does one determine what the
> declarative statement is for a functional index that is obtained from
> pg_index.indexprs?  What I would like to be able to do is be able to
> recreate the SQL that defined that index.  Is that represented somewhere
> in another system table?

Use pg_get_indexdef().

			regards, tom lane