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Re: Nested Transaction TODO list

From: Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl>,pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: Nested Transaction TODO list
Date: 2004-07-03 16:51:01
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Lists: pgsql-hackers
On Sat, 3 Jul 2004, Tom Lane wrote:

> trigger.c: not at all sure about the model for handling trigger firing
> status.  It looks like a subtrans could fire triggers that were pending
> from an outer xact, which is dubious at best.

Well, SET CONSTRAINTS potentially needs to check the state of any
outstanding constraints whose state changes from deferred to immediate. I
don't think we can say that it sets a constraint to immediate, but doesn't
check outstanding instances because they were from an outer transaction
(unless the constraint state reverted on commit which seems really odd).

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