Distributed RDataFrame does not see all defined column names

[vepadulano]

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Description

See the report on the forum https://root-forum.cern.ch/t/accessing-attributes-of-distributed-rdataframe-instance-after-filter-and-define-are-called/59261

This is simply due to distributed RDataFrame not keeping track of the defined columns. In general, the inner, local RDataFrame object is really just an empty shell for now.

Reproducer

See the report

ROOT version

Any

Installation method

Any

Operating system

Any

Additional context

No response