Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table
От
Gregory Stark
Тема
Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table
Дата
Msg-id
87y7gfshpr.fsf@oxford.xeocode.com
Ответ на
Re: ON DELETE SET NULL clauses do error when more than two
columns are referenced to one table (Heikki Linnakangas)
Список
Дерево обсуждения
ON DELETE SET NULL clauses do error when more than two columns are referenced to one table "Pavel Stehule" <pavel.stehule@gmail.com>
Re: ON DELETE SET NULL clauses do error when more than two
columns are referenced to one table Heikki Linnakangas <heikki@enterprisedb.com>
Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table Tom Lane <tgl@sss.pgh.pa.us>
Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table Tom Lane <tgl@sss.pgh.pa.us>
Re: ON DELETE SET NULL clauses do error when more than two
columns are referenced to one table Heikki Linnakangas <heikki@enterprisedb.com>
Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table Tom Lane <tgl@sss.pgh.pa.us>
Re: ON DELETE SET NULL clauses do error when more than two columns are referenced to one table Gregory Stark <stark@enterprisedb.com>
"Heikki Linnakangas" writes: > I'm not sure what to do about this. We could change the order the > triggers are fired to breadth-first. If all the setnull triggers were > executed first, there would be no problem. But that seems like a pretty > big change, and I'm afraid it might have other unintended consequences. We could also check the queued triggers to see if there really is a trigger which will be invalidated by the second update and therefore needs to be rechecked (or even just change the tid of the existing queued check). I don't know what it would take to make that efficient though. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com
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