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From:Michael Widenius Date:January 30 2009 11:52am
Subject:Re: WL#946 and Changing time literal format
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Hi!

>>>>> "Bernt" == Bernt M Johnsen <Bernt.Johnsen@stripped> writes:

>>>>>>>>>>>>> Michael Widenius wrote (2009-01-24
> 02:07:54):
>> As Dmitri pointed out, we shouldn't deprecate '.' as substitute for
>> dates.
>> 
>> Another things is that we should stop making decisions about
>> incompatible changes without listening to the MySQL users.  They know
>> more than we how MySQL is used and they are directly affected of any
>> incompatible change we force upon them.

Bernt> Ok. And what is the users' verdict? Do they want a "helpful" best
Bernt> effort interpretation of time and dates or do they want a well-defined
Bernt> standardized portable scheme which reduces the possibilities of bugs?

Normally they don't want their existing applications to break.

Bernt> And what does this "helpfullness" lead to? In Norway it is common to
Bernt> write dates as DD.MM.YY. So a buggy program that accepts 01.02.03 (for
Bernt> the date 2003-02-01) whould be able to insert it into MySQL without
Bernt> errors, but when retrieved the value is 2001-02-03. I don't think the
Bernt> user/programmer is happy with that.

They will quickly notice this and fix their time order.

In reality we haven't got many complains from Norway about this, so
I assume they are smart enough in Norway to not run into this problem.

Its more important that we don't break things for current users than
try to be concerned about possible wrong usage that no one seams to do
or find important enough to complain about.

Bernt> We have a Norwgeian word for this "helpfullness": "bjørnetjeneste", but
Bernt> I'm not sure what the english idiom would be.

Regards,
Monty
Thread
Re: WL#946 and Changing time literal formatRoy Lyseng25 Jan
  • Re: WL#946 and Changing time literal formatMichael Widenius30 Jan
Re: WL#946 and Changing time literal formatPeter Gulutzan25 Jan
Re: WL#946 and Changing time literal formatMichael Widenius30 Jan
  • Re: WL#946 and Changing time literal formatKonstantin Osipov30 Jan
    • Re: WL#946 and Changing time literal formatJoerg Bruehe30 Jan
      • RE: WL#946 and Changing time literal formatJerry Schwartz30 Jan
    • Re: WL#946 and Changing time literal formatMichael Widenius3 Feb
      • Re: WL#946 and Changing time literal formatKonstantin Osipov5 Feb
        • Re: WL#946 and Changing time literal formatKonstantin Osipov5 Feb