Yes I have tried with t_ix = 1; or t_ix := 1; I get the same result, it just doesn't do anything, I have also tried with AFTER and BEFORE, when I use BEFORE I get this error ERROR: cannot return non-composite value from function returning composite type CONTEXT: PL/pgPSQL function on_ai_mytable() line 17 at RETURN <<<<<<<<< line 17 is... "NEW.time_index = t_ix;"
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