| From: | David G Johnston <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: a row not deletes |
| Date: | 2014-04-27 14:56:40 |
| Message-ID: | 1398610600667-5801658.post@n5.nabble.com |
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| Lists: | pgsql-general |
Andres Freund-3 wrote
> Hi,
>
> On 2014-04-27 10:23:18 +0200, Rafał Pietrak wrote:
>> I've just experienced an unexpected (for me) "loss" of DELETE. Is this a
>> feature or a bug (postgres v.s. SQL)?
>
> I guess you're using 9.2 or older? You are not allowed to update the
> deleted row in a BEFORE trigger. The source has this comment about it
> (in 9.3 onwards):
IOW, it is a bug discovered during the 9.2 release that was deemed improper
to back-patch.
However, the bug applies to behavior that should only happen by mistake; you
should not have a trigger that updates the row you are currently deleting.
But since the behavior results is working code breaking it in a released
branch is frowned upon.
David J.
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