Re: trigger for TRUNCATE?
| От | Tom Lane |
|---|---|
| Тема | Re: trigger for TRUNCATE? |
| Дата | |
| Msg-id | 9563.1199992524@sss.pgh.pa.us обсуждение исходный текст |
| Ответ на | Re: trigger for TRUNCATE? (Alvaro Herrera <alvherre@commandprompt.com>) |
| Ответы |
Re: trigger for TRUNCATE?
|
| Список | pgsql-sql |
Alvaro Herrera <alvherre@commandprompt.com> writes:
> My thinking is that a TRUNCATE trigger is a per-statement trigger which
> doesn't have access to the set of deleted rows (Replicator uses it that
> way -- we replicate the truncate action, and replay it on the replica).
> In that way it would be different from a per-statement trigger for
> DELETE.
Ah, right. I was thinking in terms of having TRUNCATE actually fire the
existing ON DELETE-type triggers, but that's not really helpful --- you'd
need a separate trigger-event type. So we could just say by fiat that
an ON TRUNCATE trigger doesn't get any rowset information, even after we
add that for the other types of statement-level triggers.
Never mind ...
regards, tom lane
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