GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/5151
[SPARK-6361][SQL] support adding a column with metadata in DF
This is used by ML pipelines to embed ML attributes in columns created by
ML transformers/estimators. @marmbrus
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark SPARK-6361
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5151.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5151
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commit bb30de36e057359e91b1feeb109b6e0d100cec28
Author: Xiangrui Meng <[email protected]>
Date: 2015-03-24T03:02:29Z
support adding a column with metadata in DF
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