Catalog.to_dask_dataframe

[hombit]

Feature request

Implement Catalog.to_dask_dataframe() which would return self._ddf.copy().

Before submitting Please check the following:

• [x] I have described the purpose of the suggested change, specifying what I need the enhancement to accomplish, i.e. what problem it solves.
• [ ] I have included any relevant links, screenshots, environment information, and data relevant to implementing the requested feature, as well as pseudocode for how I want to access the new functionality.
• [x] If I have ideas for how the new feature could be implemented, I have provided explanations and/or pseudocode and/or task lists for the steps.

[delucchi-cmu]

Is this still relevant / the same with changes to nested-*?

[hombit]

The method name may differ, but we still need to provide a "safe" interface for casting catalogs to (nested) Dask dataframes. This would give users access to the (nested) dataframe functionality not wrapped by the Catalog class.