GitHub user koertkuipers opened a pull request:
https://github.com/apache/spark/pull/23173
[SPARK-26208][SQL] add headers to empty csv files when header=true
## What changes were proposed in this pull request?
Add headers to empty csv files when header=true, because otherwise these
files are invalid when reading.
## How was this patch tested?
Added test for roundtrip of empty dataframe to csv file with headers and
back in CSVSuite
Please review http://spark.apache.org/contributing.html before opening a
pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tresata-opensource/spark
feat-empty-csv-with-header
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/23173.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 #23173
----
commit 3192656ad91d326824360f4d4890dc1f6c3f6393
Author: Koert Kuipers <koert@...>
Date: 2018-11-28T19:03:20Z
write headers to empty csv files when header=true
commit aad5f09710d4b6d4aafa810307b3cae9c965babf
Author: Koert Kuipers <koert@...>
Date: 2018-11-28T20:00:22Z
Merge branch 'master' into feat-empty-csv-with-header
----
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
