Re: [Pytables-users] Maximum size of Array

[Edward H. <ha...@co...>]

On Friday, May 16, 2003, at 11:02  am, Francesc Alted wrote:

> A Dijous 15 Maig 2003 19:52, Edward Hartley va escriure:
>> Hi
>> is there any limit in the HDF5 file layer on the size of table 
>> entries?
>
> To my understanding no (well, at least a practical limit). The number 
> of
> rows on datasets (a table is a special type of dataset) in HDF5 are of 
> type
> hsize_t which is bound to integers of 64 bits both in modern Unix and
> Windows. So, your tables can have up to 2**63 rows, which is something 
> like
> 1e19 (!).
>
Thanks my knowing this is usefull.
However question was directed at finding the maximum size of a Column 
entry in a row
not at the maximum number of rows.
I have found that the maximum size of an array entry in a group is 
about 2**27 before the interpreter
cannot get any more memory on my machine with 128M swap.
This is without a flush operation
Regards
Ed
> Cheers,
>
> -- 
> Francesc Alted
>
>
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