noahblakesmith

Invalid `validate` argument in `dask.dataframe.merge`

1

**Describe the issue**: I understand your [documentation](https://docs.dask.org/en/stable/generated/dask.dataframe.merge.html) suggests `merge` allows a `validate` argument, like the `pandas` [equivalent](https://pandas.pydata.org/docs/reference/api/pandas.merge.html). However, I get an error when I try. Thanks so much in advance!...

`.str.split` coerces `dtype` to `object`

2

**Describe the issue**: The `.str.split` method coerces `dtype` from `string` to `object`. This behavior is also inconsistent with `pandas` (if that matters). **Minimal complete verifiable example**: Code ```python import dask.dataframe...