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is accessing parts of an hdf5 dataset possible?

I have a large HDF5 dataset that cannot fit into memory if I do an
Import of the dataset.

Is there a way to load only a portion of a dataset? My dataset is a
two dimensional array. Ideally, I would be able to Import and Export
portions of the array via part assignments. Without this feature, it
is a little difficult to work with large HDF5 datasets in Mathematica,
isn't it?

I assume the answer is no in case I get no replies.

But before I write mathlink wrappers, just wanted to double check.
Such a feature is available in two python wrappers of the HDF5 library
(h5py and pytables).


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