GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/16837
[SPARK-19359][SQL] renaming partition should not leave useless directories
## What changes were proposed in this pull request?
when we rename a nested path, different file systems have different
behaviors. e.g. in jenkins, renaming `a=1/b=2` to `A=2/B=2` will success, but
leave an empty directory `a=1`. in mac os, the renaming will fail and result to
`a=1/B=2`.
This PR rename the partition path recursively from the first partition
column, to be most compatible with different file systems.
## How was this patch tested?
new regression test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark partition
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16837.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 #16837
----
commit 47254448c60cbf92921a8140cf0f513a3329b0ff
Author: Wenchen Fan <[email protected]>
Date: 2017-02-07T17:28:23Z
renaming partition should not leave useless directories
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
