# Chunk (and compress) large string

**URL:** <https://forum.hdfgroup.org/t/chunk-and-compress-large-string/11847>\
**Category:** HDF5 Library\
**Created:** [December 16, 2023, 11:27am UTC](https://forum.hdfgroup.org/t/chunk-and-compress-large-string/11847 "2023-12-16T11:27:50Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![m.diehl](https://forum.hdfgroup.org/user_avatar/forum.hdfgroup.org/m.diehl/32/1742_2.png) [@m.diehl](https://forum.hdfgroup.org/u/m.diehl)\
**Post date:** [January 14, 2024, 8:02am UTC](https://forum.hdfgroup.org/t/chunk-and-compress-large-string/11847/5 "2024-01-14T08:02:43Z")

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> [@What do you want to see in "HDF5 2.0"?](https://forum.hdfgroup.org/t/what-do-you-want-to-see-in-hdf5-2-0/10003/21):
>
> Actually, we are almost there after new indexing for chunked datasets were introduced in 1.10.0. Current APIs and programming model still require to use H5Pset\_chunk but this call could be omitted if there is only one chunk (i.e, contiguos storage). Then compression can also be used on “contiguous” dataset. I couldn’t convince Quincey to introduce this change in 1.10.0 and the rest is history. Elena

@epourmal1 Are there still plans to support compression of non-chunked datasets? That would be a good solution.

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