GitHub user sirpkt opened a pull request:
https://github.com/apache/spark/pull/8411
[SPARK-10216][SQL]Avoid creating empty files during overwrite into Hive
table with group by query
I added check routine at saveAsHiveFile() of InsertIntoHiveTable.
It checks whether the given partition has data in it or not
and creates/writes file only when it actually has data.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sirpkt/spark SPARK-10216
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8411.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 #8411
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commit 80184556a48b22793ef2bdf991595cc845a9aded
Author: Keuntae Park <[email protected]>
Date: 2015-08-25T01:21:22Z
do not make empty file when insert overwrite into Hive table
commit 46f085a2a13dbea616d2620bf8437e05cf99a573
Author: Keuntae Park <[email protected]>
Date: 2015-08-25T01:46:01Z
Merge branch 'master' into NoEmptyInsert
commit 689252a6d531037ba74d998caca0991ad1798d4c
Author: Keuntae Park <[email protected]>
Date: 2015-08-25T04:06:04Z
Merge remote-tracking branch 'upstream/master' into SPARK-10216
commit e2749d7bc78d6b64644cd7fcbf89fbda27e5688b
Author: Keuntae Park <[email protected]>
Date: 2015-08-25T04:07:37Z
change test name to reflect issue number and name
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