is there a way to change the index type of dictionary encodings of strings?

[sthornington]

uint32 specifically doesn't seem to work with pandas... (the arrow batch readers resulting cannot do read_pandas() for example).

[sthornington]

I'm trying an overwrite with a custom dictionary key field DataType.....

[chmp]

Changing this index is currently not implemented. You could manually overwrite the corresponding fields. But I would also be happy to accept a patch that adds this option to the current code.

FYI. I chose uint32 as it is used by polars as its index type.

[sthornington]

Yes I got it working with overwrites, I'll see about a patch when I am back at my desk!