Re: Constraint Trigger's referenced_table

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От Richard Broersma Jr
Тема Re: Constraint Trigger's referenced_table
Дата
Msg-id 847623.44350.qm@web31812.mail.mud.yahoo.com
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Ответ на Re: Constraint Trigger's referenced_table  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Constraint Trigger's referenced_table
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--- On Sat, 12/22/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:

> It doesn't.  That table OID is just stored for the
> trigger function
> to use if it wants to.


I see.  I was thinking that the FROM clause of the Constraint Trigger would allow tuple modifications from either the
ONtable or FROM table to raise the  raise the trigger.   

So is the purpose of knowing the reference_table OID, is that it helps to generalize the logic of the CONSTRAINT
TRIGGERS?

Regards,
Richard Broersma Jr.

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