GitHub user xuanyuanking opened a pull request:
https://github.com/apache/spark/pull/18654
[SPARK-21435][SQL] Empty files should be skipped while write to file
## What changes were proposed in this pull request?
Add EmptyDirectoryWriteTask for empty task while writing files.
## How was this patch tested?
Add new test in `FileFormatWriterSuite `
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/xuanyuanking/spark SPARK-21435
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18654.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 #18654
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commit ff92ba3ae3abaae0d8ce8bb8c08465f43c14906f
Author: xuanyuanking <xyliyuanj...@gmail.com>
Date: 2017-07-17T07:38:56Z
empty files should be skipped while write to file
commit e08fb1939d5267a38f3318af7506b6ed8628ebbf
Author: xuanyuanking <xyliyuanj...@gmail.com>
Date: 2017-07-17T10:20:34Z
Handle the empty result of parquet
commit 6153001bc42deee197030ad91fbb4f72bd1aa5d3
Author: xuanyuanking <xyliyuanj...@gmail.com>
Date: 2017-07-17T12:09:08Z
Modify UT and add more notes
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