A Thursday 22 May 2008, Ivan Vilata i Balaguer escrigué:
> Glenn (el 2008-05-21 a les 21:49:45 +0000) va dir::
> > I understand. I found I can achieve almost what I want by first
> > using truncate(1) on the array. If truncate(0) were supported, then
> > I would not have to deal with any special cases. Oh well. Thanks
> > again.
>
> I think you're out of luck here, because the limitation of not being
> able to truncate a dataset to 0 rows stems from the HDF5 library
> itself.
>
> :(  However, we talked about the issue with the HDF5 people some time
>
> ago and it looks like it's an implementation limitation and not a
> design one, so you may want to get in contact with HDF5 developers
> and see if you can convince them into fixing the thing.

Oh yes, I completely forgot about this: Quincey Koziol, one of the main 
HDF5 developers, warned me some months ago that this was fixed in HDF5 
1.8.0 beta2.  I have had a quick check on this and it seems to work 
flawlessly.  See:

http://www.pytables.org/trac/ticket/171

for more info (and a patch! ;)

Cheers,

-- 
Francesc Altet
Freelance developer
Tel +34-964-282-249

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