How to create dataframe from an in-memory data collection，such as List or Map?

[fishblue]

How to create dataframe from an in-memory data collection，such as List or Map?

[jimexist]

afaik there's no easy way to do this via java for now, but ideally we can create an API that converts List or Map into a https://docs.rs/datafusion/latest/datafusion/datasource/provider/trait.TableProvider.html and then hook it up with context