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From "Mendelson, Assaf" <Assaf.Mendel...@rsa.com>
Subject RE: DataFrame select non-existing column
Date Fri, 18 Nov 2016 19:03:44 GMT
You can always add the columns to old dataframes giving them null (or some literal) as a preprocessing.

-----Original Message-----
From: Kristoffer Sjögren [mailto:stoffe@gmail.com] 
Sent: Friday, November 18, 2016 4:32 PM
To: user
Subject: DataFrame select non-existing column

Hi

We have evolved a DataFrame by adding a few columns but cannot write select statements on
these columns for older data that doesn't have them since they fail with a AnalysisException
with message "No such struct field".

We also tried dropping columns but this doesn't work for nested columns.

Any non-hacky ways to get around this?

Cheers,
-Kristoffer

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