GitHub user NathanHowell opened a pull request:
https://github.com/apache/spark/pull/7485
[SPARK-8246] [SQL] Implement get_json_object
First stab at implementing get_json_object... had some time to kill last
night and hammered it out. I haven't looked at where this integrates into the
parser (`FunctionRegistry` maybe?) but it works in manually built up DataFrames.
Tests were copied from Hive, but do not seem to be super comprehensive.
I've generally replicated Hive's unusual behavior rather than following a
JSONPath reference, except for one case (as noted in the comments). I don't
know if there is a way of fully replicating Hive's behavior without a slower
TreeNode implementation, so I've erred on the side of performance instead.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/NathanHowell/spark SPARK-8246
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7485.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 #7485
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commit 6349bbc54a9b1667d0eb07cf0ff9b46c4084d370
Author: Nathan Howell <[email protected]>
Date: 2015-07-18T01:26:44Z
[SPARK-8246] [SQL] Implement get_json_object
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