GitHub user marmbrus opened a pull request:
https://github.com/apache/spark/pull/20048
[SPARK-22862] Docs on lazy elimination of columns missing from an encoder
This behavior has confused some users, so lets clarify it.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/marmbrus/spark datasetAsDocs
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20048.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 #20048
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commit 2f4e7b04f8d62d73225f00c12a95136c556a15d7
Author: Michael Armbrust <michael@...>
Date: 2017-12-21T19:48:46Z
[SPARK-22862] Docs on lazy elimination of columns missing from an encoder
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