MoNiLlO <monillo(at)adinf(dot)es> writes:
> When I launch one insert returns error:
> I put the function and the returned error.
> CREATE OR REPLACE FUNCTION ventas_det_a_ventas_imp()
> RETURNS trigger AS
> ...
> ERROR: control reached end of trigger procedure without RETURN
> CONTEXT: PL/pgSQL function "ventas_imp_a_ventas_cab"
The function that's lacking a RETURN is not the one you're showing us.
regards, tom lane