Re: Block B-Tree concept

From: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
To: "Jim C(dot) Nasby" <jim(at)nasby(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Block B-Tree concept
Date: 2006-09-27 08:17:52
Message-ID: 451A33B0.6000305@enterprisedb.com
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Jim C. Nasby wrote:
> Do I understand that to mean that you can no longer lazy vacuum a
> functional index?

With the normal B-trees we have now, there's no problem vacuuming a
functional index. But it would be a problem with the Block B-tree,
because the proposed way of vacuuming a Block B-tree involves
re-evaluating index expressions.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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