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Re: pl/pgsql FOUND variables and RULES

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Sven W <sven@xxxxxxx> writes:
> I have a volatile function (trigger) that gathers NEW.*, parses them, then inserts a 
> subset of values into a different table.

> The table is set up as an inherited table where the parent table has a RULE :

> CREATE RULE myrule AS ON INSERT TO mytable WHERE ( myfield >= 100 and myfield < 200) 
> DO INSTEAD
> INSERT INTO mytable_100 (field1,field2,field3,myfield) VALUES 
> (NEW.field1,NEW.field2, NEW.field3, NEW.myfield);

> Now when the trigger fires the insert does happen and ends up in mytable_100 but the 
> FOUND variable is not set (since technically 0 rows got inserted into mytable). Is 
> there a proper way to set up rules such that the FOUND variable is set within 
> pl/pgsql upon a successful insert (via the rule) or how can I check for a successful 
> insert?

On the whole, you'd be a lot better off letting the trigger function
handle the redirection into the proper child table, I'd think.  Using
both a trigger and a rule seems like it mainly gives you the worst of
both worlds.

			regards, tom lane

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