| From: | Bruno Wolff III <bruno(at)wolff(dot)to> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Gregory Stark <gsstark(at)mit(dot)edu>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org, Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Subject: | Re: Fixed length data types issue |
| Date: | 2006-09-18 19:28:39 |
| Message-ID: | 20060918192839.GA18951@wolff.to |
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| Lists: | pgsql-hackers |
On Fri, Sep 08, 2006 at 15:08:18 -0400,
Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
>
> From time to time the idea of a logical vs physical mapping for columns
> has been mentioned. Among other benefits, that might allow us to do some
> rearrangement of physical ordering to reduce space wasted on alignment
> in some cases. There might be a small addition on computation required,
> but I suspect it would be lost in the noise, and swamped by any
> increased efficiency we got from putting more tuples in a page.
I believe another counter argument raised, is that this would be a source
of a lot of bugs.
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