Re: Column storage positions

From: Kris Jurka <books(at)ejurka(dot)com>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Zeugswetter Andreas ADI SD <ZeugswetterA(at)spardat(dot)at>, Phil Currier <pcurrier(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Column storage positions
Date: 2007-02-22 18:55:47
Message-ID: Pine.BSO.4.64.0702221354470.14645@leary.csoft.net
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On Thu, 22 Feb 2007, Alvaro Herrera wrote:

> Zeugswetter Andreas ADI SD escribió:
>>
>> I agree, I haven't thought of drop column :-( Drop column should have
>> relabeled attnum. Since it was not done then, my comments are probably
>> moot.
>
> We can correct this problem now.
>

How? If attnum is serving as both physical position and logical order,
how can you make it be logical position without breaking physical
position?

Kris Jurka

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