On Tue, 24 May 2005 01:26 am, --= Tono =-- wrote:
> I have tried using INSTEAD rules but there are some
> conditional logic that needs to happen inside the rule
> (performing counts, getting and storing the primary
> key of the master record etc.). AFAIK, rules only
> allows conditional logic to be check prior to
> execution of the rule and not inside the rule itself.
> One way to get around this is to allow calling a
> stored procedure inside the rule. This stored
> procedure should have full access of NEW.* (and OLD.*
> in the case of UPDATE and DELETE). This way the
> manual INSERT, UPDATE or DELETE on the actual tables
> can be performed from inside the stored procedure.
>
Would it be possible to add an INSTEAD OF rule that calls
a function. You could then use that function as the trigger
you wanted. I'm not even sure if this is possible.
DO INSTEAD SELECT * FROM function(rowtype);
Regards
Russell Smith.
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
