Re: [Pytables-users] extending a CArray

[Francesc A. <fa...@gm...>]

On 11/1/12 9:02 PM, Ben Elliston wrote:
> Hi all.
>
> I have a very large CArray that I need to extend (of course, you can't
> extend a CArray).  I want to do this in the least operation intensive
> way I can.
>
> What's the easiest way?  Create a new CArray of the right size, copy
> the data into it and delete the old one?

Yes, this is the best approach.

>    I understand that deleting
> the old one will not reclaim any space in the database -- is that
> right?

Yes, that's correct.  For claiming the old space you should 'repack' the 
file either using ptrepack PyTable's own tool or the HDF5 native tool 
called h5repack.

HTH,

-- 
Francesc Alted