REF: Implement CFTimeIndex via pandas ExtensionArray · Issue #6129 · pydata/xarray (original) (raw)

With pandas#43930 merged, arbitrary ExtensionArrays will be stored directly in a pd.Index, (hopefully) obviating the need for an Index subclass.

The suggestion here is to implement a CFTimeExtensionArray, and once minimum-supported-versions catch up, deprecate CFTimeIndex.