Support `null_order` for sorting from Python

cylondata / cylon

Cylon is a fast, scalable, distributed memory, parallel runtime with a Pandas like DataFrame.

https://cylondata.org

Apache License 2.0

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Open nirandaperera opened 2 years ago

nirandaperera commented 2 years ago

Currently, internal sorting kernels support null_order in C++. But this has not been exposed to the cylon::Table API nor to the python APIs. This will be synonymous to na_position option in pd.Dataframe. https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.sort_values.html

kabicm commented 5 months ago

By default, what is the sorting in cylon::Table using: the nulls before or the nulls after option?