Albert Strasheim wrote:

> Check the thread "Strange results when sorting array with fields" from
> about a week back. Travis made some changes to sorting in the presence
> of fields that should solve your problem, assuming your fields appear in
> the order you want to sort (i.e. you want to sort f1, f2, f3 and not
> something like f1, f3, f2).

I'm afraid this won't help in my case; I want to sort twice, once by f1
and once by f2. I guess I could make a second file with the fields
swapped but this seems more messy and inefficient than Francesc's
suggestion.