Re: B-tree performance improvements in 8.x

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Dick Kniep <dick(at)kniep(dot)nl>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: B-tree performance improvements in 8.x
Date: 2006-02-08 05:18:13
Message-ID: 3266.1139375893@sss.pgh.pa.us
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Dick Kniep <dick(at)kniep(dot)nl> writes:
> Does this also affect if you have many NULL values in the key? So testing Not
> is NULL would also be affected?

IS NOT NULL isn't an indexable operation, so your question doesn't really
apply :-(

regards, tom lane

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