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From: Tom Lane <tgl@sss.pgh.pa.us>
To: mark@mark.mielke.cc
Cc: Merlin Moncure <merlin.moncure@rcsonline.com>
Cc: Kelly Burkhart <kelly@tradebotsystems.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: 8.x index insert performance
Date: Mon, 31 Oct 2005 15:30:29 -0500
Message-ID: <18647.1130790629@sss.pgh.pa.us> (raw)
In-Reply-To: <20051031193547.GA3311@mark.mielke.cc>
References: <6EE64EF3AB31D5448D0007DD34EEB3417DD725@Herge.rcsinc.local>
	<20051031193547.GA3311@mark.mielke.cc>

mark@mark.mielke.cc writes:
> I've been trying to figure out whether null values are indexed or not from
> the documentation. I was under the impression, that null values are not
> stored in the index.

You're mistaken, at least with regard to btree indexes.

			regards, tom lane



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