julia lang - Dataframe join on multiple IDs -


i'm trying database style merge @ least 2 ids using data-frame types: 

merged_df = join(df1, df2, on = (:id1 :id2), kind = :outer)

this not seem allowed in base.join.

i can make work kind of verbose function, want see if there's cleaner way? 

merged_df = join(df1, df2, on = [:id1, :id2], kind = :outer)

dataframes awesome, there's lot of useful stuff that's not documented... there's few things i've been meaning add documentation in joins , split-apply-combine sections.


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