Re: Re : Update columns in same table from update trigger?

От: Alban Hertroys
Тема: Re: Re : Update columns in same table from update trigger?
Дата: ,
Msg-id: 6C4E75E0-A948-4A72-ACDB-30252D9C387D@solfertje.student.utwente.nl
(см: обсуждение, исходный текст)
Ответ на: Re: Re : Update columns in same table from update trigger?  (Alban Hertroys)
Ответы: Re : Re : Update columns in same table from update trigger?  (Pablo Romero Abiti)
Список: pgsql-general

Скрыть дерево обсуждения

Update columns in same table from update trigger?  (Pablo Romero Abiti, )
 Re: Update columns in same table from update trigger?  (Alban Hertroys, )
  Re : Update columns in same table from update trigger?  (Pablo Romero Abiti, )
   Re: Re : Update columns in same table from update trigger?  (Alban Hertroys, )
    Re: Re : Update columns in same table from update trigger?  (Alban Hertroys, )
     Re : Re : Update columns in same table from update trigger?  (Pablo Romero Abiti, )
 Re: Update columns in same table from update trigger?  (Sim Zacks, )

On 24 Jul 2011, at 11:00, Alban Hertroys wrote:

> You can't fire a trigger on non-existant data.


I just realised the above statement is a little inexact: you can't fire row-level triggers on non-existant data.

You can still fire statement-level triggers on them, but with those you won't have information about which row(s) were
involved,so it won't help your case. 

Alban Hertroys

--
If you can't see the forest for the trees,
cut the trees and you'll see there is no forest.


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