Jason Lee wrote:
I'm trying to write a trigger that updates a date_changed field on a
record anytime that record is updated. I have a function written, and
the trigger created, but everytime I update the record, I get a
recursion limit error.
[snip]
declare begin
update unit_specification set date_changed = now() from
unit_specification us where us.id = NEW.id;
RETURN NEW;
end;
Here, just do
NEW.date_changed = now();
RETURN NEW;
With the trigger created with
CREATE TRIGGER update_changed_ts AFTER INSERT OR UPDATE
ON unit_specification FOR EACH ROW
EXECUTE PROCEDURE public.update_unit_spec_changed_date();
Make this BEFORE insert or update.
--
Richard Huxton
Archonet Ltd
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