Kevin Ushey created SPARK-20632:
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Summary: Allow 'Column.getItem()' API to accept Vector columns
Key: SPARK-20632
URL: https://issues.apache.org/jira/browse/SPARK-20632
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.1.1, 1.6.3
Reporter: Kevin Ushey
Priority: Minor
The 'getItem()' API is quite handy for extracting values from Dataset columns
of type 'ArrayType'. It would be quite useful if this could also accept
'Vector' columns, e.g. those generated by the various MLLib routines
(probability columns).
If I understand correctly, users are forced to define custom UDFs to handle
this case, and the UDF type required for vector columns is not always obvious.
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