Re: Deprecating RULES
| От | Andres Freund |
|---|---|
| Тема | Re: Deprecating RULES |
| Дата | |
| Msg-id | 201210151512.25656.andres@2ndquadrant.com обсуждение исходный текст |
| Ответ на | Re: Deprecating RULES (Simon Riggs <simon@2ndQuadrant.com>) |
| Список | pgsql-hackers |
On Monday, October 15, 2012 03:07:21 PM Simon Riggs wrote: > On 15 October 2012 11:41, Greg Stark <stark@mit.edu> wrote: > > On Mon, Oct 15, 2012 at 8:00 AM, Simon Riggs <simon@2ndquadrant.com> wrote: > >> Please can anyone show me the SQL for a rule that cannot be written as > >> a view or a trigger? I do not believe such a thing exists and I will > >> provide free beer to the first person that can prove me wrong. > > > > Being written as a view doesn't help you because views use rules. I > > repeat, the very fact that we need rules to implement views prove > > rules are necessary for some purposes. > > No, it just means there is some aspect of similar underlying > infrastructure. > > Denial of free beer looks like proof to me... Well, didn't Tom already mention AFTER ... FOR EACH ROW triggers being problematic because of the in-memory queue? Greetings, Andres -- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
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