nlgranger opened a new issue, #41961:
URL: https://github.com/apache/arrow/issues/41961
### Describe the enhancement requested
`pyarrow.parquet.write_table` has a compression argument which can take a
dict with column names as keys.
When the column type is a compound type, the user must actually add a suffix
to the name (ex: ".list.element"), otherwise it does not work. This is not
documented anywhere and was clearly not anticipated in the API.
An example of such a column type is:
```
optional group field_id=-1 [LiDARPoseComponent].range_image_return1.shape
(List) {
repeated group field_id=-1 list {
optional int32 field_id=-1 item;
}
}
```
I suspect the same issue arose for the `sorting_columns` arguments, so a
possible fix is to also require column indices instead of names for
`compression`.
### Component(s)
Parquet, Python
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