Matthew Peter wrote:
Do rules get special variables like triggers? Can I set variables in them liketriggers?
You get NEW/OLD but they mean something subtly different. Rules act on a query-tree so they are more like placeholders.
You can't set variables in triggers. You do so in a function. If your rule calls a function, that could have variables.
Spend some time playing with rules - make sure you understand the difference between them and triggers.
-- Richard Huxton Archonet Ltd