Re: Accessing field of OLD in trigger

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От Josh Trutwin
Тема Re: Accessing field of OLD in trigger
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Msg-id 20071012081812.358a9543@prokofiev.trutwins.homeip.net
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Ответ на Accessing field of OLD in trigger  (Daniel Drotos <drdani@mazsola.iit.uni-miskolc.hu>)
Ответы Re: Accessing field of OLD in trigger  (Erik Jones <erik@myemma.com>)
Список pgsql-sql
On Fri, 12 Oct 2007 12:00:55 +0200 (CEST)
Daniel Drotos <drdani@mazsola.iit.uni-miskolc.hu> wrote:

> Hi,
> 
> 
> I'm working on a row level plpgsql trigger running after delete,
> using a 8.0.3 server. It gets a parameter which is a field name of
> the OLD record. How can that field be accessed?
> 
> I'd like to do something like:
> 
> for recvar in 'select OLD.'||quote_ident(TG_ARGV[0])...

I THINK you are out of luck here.  I hear it's possible to do but in
one of the other PL languages say pl/tcl, though I can't seem to find
an example....

Josh


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