GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/19228
[SPARK-21985][PYTHON] Fix zip-chained RDD to work
## What changes were proposed in this pull request?
This PR proposes to return an iterator of lists (batches) of objects in
`CartesianDeserializer` and `PairDeserializer` rather than an iterator of
iterators (batches) of objects so that `zip` chaining works.
## How was this patch tested?
Unit tests added.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-21985
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19228.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 #19228
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commit 0703b67405fa721230af80421509a55eb88c5763
Author: hyukjinkwon <gurwls...@gmail.com>
Date: 2017-09-14T03:29:39Z
Returns an iterator of lists
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