Re: [HACKERS] datetime default 'now' broken?

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От Thomas G. Lockhart
Тема Re: [HACKERS] datetime default 'now' broken?
Дата
Msg-id 350DE174.19E1738D@alumni.caltech.edu
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Ответ на datetime default 'now' broken?  (Brett McCormickS <brett@abraxas.scene.com>)
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> >> If I create a table with a datetime field with a default of 'now',
> >> every insert the value is the time of table creation instead of the
> >> time of insert, which is how it behaved in previous releases (I
> >> think this was even documented).
> >
> >I can't recall it ever working that way, though before we discovered
> >that it didn't we all assumed that it _did_ work that way :)
>
> I'm running 6.1.1 and I *depend* on 'now' giving me the real now in an
> insert.  I guess I'm glad I never upgraded.

Hi Henry. You're missing a lot by not upgrading. DEFAULT clauses on
tables which Brett was asking about aren't even available pre-v6.2. The
'now' behavior in default clauses was an unexpected side-effect of the
optimizer, which evaluates things which look like constants before
execution.

Give me a call during the day at x47797 if you have any other
reservations about upgrading...

                   - Tom

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