Re: [bug-recutils] issue a warning when using -e and aggregate functions

[Jose E. Marchesi]

    This doesn't produce what one expects:
    
    recsel -e 'Price > 1' -P 'Avg(Available)' test.rec
    
    The manual describes that the average is computed over all records in
    the file regardless the selection expression, however, a short warning
    message on the output would go a long way in usability.

I would say that a warning message would be overkill in this case.  What
the others think?