Hi everyone, what is the most efficient way to filter a DataFrame on a column from another Dataframe's column. The best idea I had, was to join the two dataframes :
> val df1 : Dataframe
> val df2: Dataframe
> df1.join(df2, df1("id") === df2("id"), "inner")
But I end up (obviously) with the "id" column twice.
Another approach would be to filter df1 but I can't seem to get this to
work using df2's column as a base
Any idea ?
Regards,
Olivier.
