GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/7901
[SPARK-8246] [SQL] Implement get_json_object
This is based on #7485 , thanks to @NathanHowell
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/davies/spark get_json_object
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7901.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 #7901
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commit 8dab6472657ba79846cf79d9b2779796284f11f1
Author: Nathan Howell <[email protected]>
Date: 2015-07-18T01:26:44Z
[SPARK-8246] [SQL] Implement get_json_object
commit 9192d097c18feebc7896aca56d81409e22d57355
Author: Nathan Howell <[email protected]>
Date: 2015-07-24T02:14:43Z
Match Hiveâs behavior for unwrapping arrays of one element
commit 44084c5bb2f23fa1cadf62b17e0f3d8042f8d925
Author: Davies Liu <[email protected]>
Date: 2015-08-03T18:40:49Z
Merge branch 'master' of github.com:apache/spark into get_json_object
Conflicts:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala
commit 940c06029e199640cd508d0743e2c29eebf0d9b1
Author: Davies Liu <[email protected]>
Date: 2015-08-03T19:15:17Z
tweat code style
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