| From: | Heikki Linnakangas <heikki(at)enterprisedb(dot)com> |
|---|---|
| To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Visibility map thoughts |
| Date: | 2007-11-07 21:13:34 |
| Message-ID: | 47322A7E.8060000@enterprisedb.com |
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| Lists: | pgsql-hackers |
Kevin Grittner wrote:
>>>> On Tue, Nov 6, 2007 at 8:18 AM, in message <473077AD(dot)30101(at)enterprisedb(dot)com>,
> Heikki Linnakangas <heikki(at)enterprisedb(dot)com> wrote:
>
>> The indexam API needs to be modified as well, because there's currently
>> no API to return index tuples from an index.
>
> I know this is tangential, but expanding the types of selection
> criteria which can be applied to index entries (beyond equality and
> range tests) might fall out of this, yes?
What else so you have in mind?
With index-only-scans, it would sometimes make sense to do a full index
scan. I wasn't thinking of anything else on that front myself.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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