Re: Where does postgres store records of DROP-ed columns?

Lists: pgsql-general
From: pw <p(dot)willis(at)telus(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Where does postgres store records of DROP-ed columns?
Date: 2004-09-09 19:01:20
Message-ID: 4140A880.2070208@telus.net
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Hello,

I have some stuff coming back from the database
telling me that columns that I have dropped
are being retined inthe table renamed as

........pg.dropped.1........
........pg.dropped.7........

I know what these columns originally were but I dropped them
from the table. I am now 'haunted' by these ghost columns with no
type applied.

How do I get rid of these references?

Thanks for nay help,

Pete


From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: pw <p(dot)willis(at)telus(dot)net>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Where does postgres store records of DROP-ed columns?
Date: 2004-09-09 20:02:04
Message-ID: 4140B6BC.6080105@commandprompt.com
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> I know what these columns originally were but I dropped them
> from the table. I am now 'haunted' by these ghost columns with no
> type applied.
>
> How do I get rid of these references?

I believe (I would have to double check) that they will dissappear after
a vacuum.

Sincerely,

Joshua D. Drake

>
> Thanks for nay help,
>
> Pete
>
>
>
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From: peter Willis <peterw(at)borstad(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Where does postgres store records of DROP-ed columns?
Date: 2004-09-09 20:47:15
Message-ID: 4140C153.2010907@borstad.com
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Thank you.
That worked.
I got mind locked into psql command line space and forgot about
the executables......

Thanks again,

Pete

Joshua D. Drake wrote:

>>
>> How do I get rid of these references?
>
>
> I believe (I would have to double check) that they will dissappear
> after a vacuum.
>
> Sincerely,
>
> Joshua D. Drake
>


From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pw <p(dot)willis(at)telus(dot)net>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Where does postgres store records of DROP-ed columns?
Date: 2004-09-09 22:01:30
Message-ID: 10991.1094767290@sss.pgh.pa.us
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pw <p(dot)willis(at)telus(dot)net> writes:
> How do I get rid of these references?

You ignore pg_attribute rows that have attisdropped true.

regards, tom lane