Re: [PATCHES] enable/disable trigger (Re: Fwd: Open items)

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От Tom Lane
Тема Re: [PATCHES] enable/disable trigger (Re: Fwd: Open items)
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Msg-id 20737.1124158695@sss.pgh.pa.us
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Ответ на Re: [PATCHES] enable/disable trigger (Re: Fwd: Open items)  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: [PATCHES] enable/disable trigger (Re: Fwd: Open items)  (Bruce Momjian <pgman@candle.pha.pa.us>)
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Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Oh, and one trick for disabling triggers in a single session is to do
> this:

>     BEGIN WORK;
>     ALTER TABLE xx DISABLE TRIGGER ALL
>     ...
>     ALTER TABLE xx ENABLE TRIGGER ALL
>     COMMIT WORK;

> In this case, the triggers are disabled just for that session.

... but everybody else is locked out completely, because the ALTER takes
an exclusive lock on the table.  It's a bit misleading to describe that
as a local change.
        regards, tom lane


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