GitHub user concretevitamin opened a pull request:
https://github.com/apache/spark/pull/1074
[SQL] Support transforming TreeNodes with Option children.
Thanks goes to @marmbrus for his implementation.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/concretevitamin/spark option-treenode
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1074.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 #1074
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commit 2ccb721659e31b5ff3323a1ae2ff90aefb341b03
Author: Michael Armbrust <[email protected]>
Date: 2014-06-11T19:35:46Z
Add support for transformation of optional children.
commit ab78420c4c2722e85c41cd5e0292583e26f6999c
Author: Zongheng Yang <[email protected]>
Date: 2014-06-13T05:17:49Z
Add a test.
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