GitHub user arashpa opened a pull request:
https://github.com/apache/spark/pull/12510
[SPARK-14739] [PySpark] Fix bug while parsing all zero sparse vectors
## What changes were proposed in this pull request?
The PySpark deserialization has a bug that shows while deserializing all
zero sparse vectors. This fix filters out empty string tokens before casting,
hence properly stringified SparseVectors successfully get parsed.
## How was this patch tested?
Added an inline test similar to other tests in the __init__.py file.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/arashpa/spark SPARK-14739
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12510.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 #12510
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commit cfd96c661d565690b1d4ea833f067201a6d2dd16
Author: Arash Parsa <[email protected]>
Date: 2016-04-19T23:53:58Z
Fix bug while parsing all zero sparse vectors
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