[Monetdb-developers] MonetDB: Apr2012 - approve output after null-any type changes

Niels Nes Niels.Nes at cwi.nl
Thu May 17 09:52:16 CEST 2012


On Thu, May 17, 2012 at 08:58:03AM +0200, Fabian Groffen wrote:
> Niels,
> 
> On 16-05-2012 22:49:30 +0200, Niels Nes wrote:
> > Changeset: f450300984b8 for MonetDB
> > URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=f450300984b8
> 
> > @@ -20,12 +20,12 @@ Ready.
> >  
> >  % . # table_name
> >  % single_value # name
> > -% char # type
> > +% any # type
> >  % 0 # length
> >  [ NULL	]
> 
> If the "any" type now boils up to the clients, we need to fix/change the
> APIs too, to understand this type and in some cases do something
> sensical with it.  JDBC will barf on it currently, IIRC.
> 
> Would it be possible to use an existing type for NULL when it has no
> type at the stage where it is sent back to the client (like
> exportResult)?
> 
> Fabian
Yes that should be possible, ie within the mvc_export* handle 'void'
similar as string. I'll have a look later today.

Niels



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-- 
Niels Nes, Centrum Wiskunde & Informatica (CWI)
Science Park 123, 1098 XG Amsterdam, The Netherlands
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url: http://www.cwi.nl/~niels   e-mail: Niels.Nes at cwi.nl
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