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> Hi,
>
> I need to flatten a nested dataframe and I' following this example:
> https://docs.databricks.com/spark/latest/spark-sql/complex-types.html
>
> Just wondering:
> 1. how can I test for the existence of an item before
Hi,
I need to flatten a nested dataframe and I' following this example:
https://docs.databricks.com/spark/latest/spark-sql/complex-types.html
Just wondering:
1. how can I test for the existence of an item before retrieving it
Say test if "b" exists before adding that into my flat dataframe
