Re: More DROP COLUMN

From: "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: More DROP COLUMN
Date: 2002-07-15 04:06:47
Message-ID: GNELIHDDFBOCMGBFGEFOMECECDAA.chriskl@familyhealth.com.au
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> > We could name the fields "________dropped_x" sort of thing perhaps????
>
> In practice that would certainly work, especially if we increase
> NAMEDATALEN to 128 or so, as has been proposed repeatedly.

Well, x is just an integer anyway, so even with 32 it's not a problem...

In case anyone was wondering btw, if a column named 'dropped_1' already
exists when you drop column 1 in the table, it will be renamed like this:

dropped1_1

And if that also exists, it will become

dropped2_1

etc. I put that extra number after dropped and not at the end so prevent it
being off the end of a 32 character name.

> Alternatively, we could invest a lot of work to make it possible for
> attname to be NULL, but I don't see the payoff...

Yeah, I think a weird name should be good enough...

Chris

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