Re: Dropping fields

Lists: pgsql-general
From: "Robert Fitzpatrick" <robert(at)webtent(dot)com>
To: <pgsql-general(at)postgresql(dot)org>
Subject: Dropping fields
Date: 2003-01-06 20:41:40
Message-ID: 004e01c2b5c4$07837b70$bbc2fea9@COLUMBUS
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Lists: pgsql-general

When I drop a field, the field is somewhat left over as
'........pg.dropped.5........', for instance. Is there a command that
needs to be ran after dropping a field?

--
Robert


From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Robert Fitzpatrick" <robert(at)webtent(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Dropping fields
Date: 2003-01-06 20:55:53
Message-ID: 1130.1041886553@sss.pgh.pa.us
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"Robert Fitzpatrick" <robert(at)webtent(dot)com> writes:
> When I drop a field, the field is somewhat left over as
> '........pg.dropped.5........', for instance. Is there a command that
> needs to be ran after dropping a field?

Fix your application to ignore pg_attribute rows where attisdropped
is true.

regards, tom lane


From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Robert Fitzpatrick <robert(at)webtent(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Dropping fields
Date: 2003-01-06 20:57:47
Message-ID: 200301062057.h06KvlR11382@candle.pha.pa.us
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All applications must now check for dropped columns and not print them.
There is a new pg_attribute.attisdropped for this.

---------------------------------------------------------------------------

Robert Fitzpatrick wrote:
> When I drop a field, the field is somewhat left over as
> '........pg.dropped.5........', for instance. Is there a command that
> needs to be ran after dropping a field?
>
> --
> Robert
>
>
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073


From: "Robert Fitzpatrick" <robert(at)webtent(dot)com>
To: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Dropping fields
Date: 2003-01-07 00:01:43
Message-ID: 009101c2b5df$f97bf4a0$bbc2fea9@COLUMBUS
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>
> Fix your application to ignore pg_attribute rows where
> attisdropped is true.
>

So, PostgreSQL 7.3.x now holds all dropped fields information? What is
the purpose?

--
Robert


From: Doug McNaught <doug(at)mcnaught(dot)org>
To: "Robert Fitzpatrick" <robert(at)webtent(dot)com>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Dropping fields
Date: 2003-01-07 00:18:32
Message-ID: m3el7phkx3.fsf@varsoon.wireboard.com
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"Robert Fitzpatrick" <robert(at)webtent(dot)com> writes:

> >
> > Fix your application to ignore pg_attribute rows where
> > attisdropped is true.
> >
>
> So, PostgreSQL 7.3.x now holds all dropped fields information? What is
> the purpose?

It's the way column dropping is implemented. You couldn't drop
columns at all before 7.3.

-Doug