From: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgreSQL(dot)org |
Subject: | Re: Making AFTER triggers act properly in PL functions |
Date: | 2004-09-07 21:50:32 |
Message-ID: | 20040907143935.A14494@megazone.bigpanda.com |
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Thread: | |
Lists: | pgsql-hackers |
On Tue, 7 Sep 2004, Tom Lane wrote:
> * EndQuery processes and discards immediate-mode AFTER trigger events for the
> current query. Any remaining events (ie, DEFERRED triggers) are appended
> to the current (sub)transaction's list of pending deferred triggers.
> Note that even inside a subtransaction, we can discard immediate-mode
> events.
>
> * EndXact and DeferredTriggerSetState continue to act the same as before.
> In particular, DeferredTriggerSetState need pay no attention to trigger
> events that are still in lists belonging to open queries; those events
> aren't ready to fire yet.
>
> Comments?
If I'm reading the above correctly, I think DeferredTriggerSetState may
need to change a little if EndQuery works on a separate list of triggers
because I believe set constraints immediate currently depends on EndQuery
going over the entire list of saved deferred triggers.
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