COPY FROM and INSERT INTO rules

All,

I have a rule written on a temp table which will copy the values inserted into it to another table applying a function. The temp table will be discarded then. The rules I have written works when I use "Insert into" the temp table. But when I use bulk copy "COPY FROM", the rule doesn't get triggered and data is inserted only into the temp table that I created.

Is there a way to call a rule when I use "COPY FROM" instead of "INSERT INTO"

TIA,
Sairam