-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Joe Conway wrote: | Tom Lane wrote: | |> Maybe the best documentation answer is to create a new subsection in the |> Functions chapter. This may be our first standard set-returning |> function but I bet it will not be the last, so the shortness of the |> subsection doesn't bother me. | | | A first shot at documentation for generate_series() is available here in | html form: | http://www.joeconway.com/functions-srf.html
I seen there:
select * from generate_series(5,1,-2); ~ generate_series - ----------------- ~ 5 ~ 3 ~ 1 (3 rows)
I understood on your past posts that instead this result was obtained with:
select * from generate_series(5,1,2); ~ generate_series - ----------------- ~ 5 ~ 3 ~ 1 (3 rows)
I think that is better have: ~ if start < end the series is ascending ~ if start > end the series is descending
~ if step > 0 the series is ascending ~ if step < 0 the series is descending ~ ( step can not be 0 )
if ( start < end ) and ( step < 0 ) the result set is empty if ( start > end ) and ( step > 0 ) the result set is empty
IMHO this is the more natural behavior.
my 2 cents.
Regards Gaetano Mendola
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFAIYxo7UpzwH2SGd4RAnr9AJ4//4AO9VaIQmweneB0BJe8DvKJQgCfSJOF ejQN8TlGBjvntxoBJgk3uIk= =HcPJ -----END PGP SIGNATURE-----
---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
