Re: Trigger function which inserts into table; values from lookup

No and update would not be needed; but the capability would be close enough,
I'd just skip the update, do nothing for that record.

But from the sound of it, the example you're suggesting involves a loop or
something of that order. I could have written this using a loop but thought
a bulk operation that essentially worked like "insert new rows for the set
and while doing so, silently skip inserts which would cause dupe key
violations". I explained all of this in the earlier messages. I thought it
might be more effenient to handle without a loop. I've been able to do this
kind of thing with other databases; essentially instruct the routine to
ignore errors silently, commit what it can commit.

Raymond O'Donnell wrote:
>
> On 21/05/2007 05:26, novnov wrote:
>
>> OK, but, how do I set this up to do what I need? I want an insert that
>> would
>> create a dupe key to be rolled back, and inserts that would not create
>> dupe
>> keys to be committed.
>
> Do you specifically need it in a trigger? I seem to recall an example in
> the docs for pl/pgsql demonstrating a function to do something like this
> - I think it tries an INSERT, and when a duplicate key raises an
> exception, it does an update instead. - You could easily adapt this to
> your purposes.
>
> Ray.
>
> ---------------------------------------------------------------
> Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
> rod(at)iol(dot)ie
> ---------------------------------------------------------------
>
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