rohdesamuel commented on issue #10915: [BEAM-8335] Add PCollection to DataFrame 
logic for InteractiveRunner.
URL: https://github.com/apache/beam/pull/10915#issuecomment-591758254
 
 
   Hey Robert, you'll notice that this implementation is quite different than 
what we talked about. When going trying to implement flattening columns from 
nested values, the logic just kept getting more and more complicated. If we 
have a rule of "use named tuples for columns names", this is a much simpler 
rule for them to memorize when using the interactive runner. A future fix can 
be to add a tabular data type (i.e. Schemas) to the type hints.

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