On Thu, Mar 08, 2007 at 10:03:32AM +0100, Marco Tulio Gontijo e Silva wrote: > Em Qui, 2006-12-07 às 20:56 -0600, John Goerzen escreveu:
> I pointed out two solutions, and this one I told that it was worse > because of this problem. I submitted a third solution latter, which was > a problem in the first, better, solution. Here it goes again: OK, sorry about that, I must have read your mail too fast. This does indeed make sense. I'll think about it a bit more, but I think I'll apply it. Thanks, -- John > > [EMAIL PROTECTED]:~/dados/texto/codigo/haskell/hdbc/Database/HDBC$ diff > -ruN Types.hs Types.2.hs > --- Types.hs 2006-11-22 09:43:30.000000000 -0200 > +++ Types.2.hs 2006-11-24 08:05:29.000000000 -0200 > @@ -363,6 +363,8 @@ > SqlEpochTime a == SqlEpochTime b = a == b > SqlTimeDiff a == SqlTimeDiff b = a == b > SqlNull == SqlNull = True > + SqlNull == _ = False > + _ == SqlNull = False > a == b = ((fromSql a)::String) == ((fromSql b)::String) > > instance SqlType String where > [EMAIL PROTECTED]:~/dados/texto/codigo/haskell/hdbc/Database/HDBC$ > > What's the problem of defining that SqlNull compared to other type is > false? I know it's not strictly necessary, cause we can use fromSql, > but i still think it's better to just compare with SqlNull without > fromSql, don't you? > > -- > malebria > Marco Túlio Gontijo e Silva > Jabber (Google Talk): [EMAIL PROTECTED] > Correio (MSN): [EMAIL PROTECTED] > Skype: marcotmarcot > Telefone: 33346720 > Celular: 98116720 > Endereço: Rua Paula Cândido, 257/201 > Gutierrez 3430-260 > Belo Horizonte/MG Brasil > > -- John Goerzen Author, Foundations of Python Network Programming http://www.amazon.com/exec/obidos/tg/detail/-/1590593715
