GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/19298
[SPARK-22076][SQL][followup] Expand.projections should not be a Stream
## What changes were proposed in this pull request?
This a follow-up of https://github.com/apache/spark/pull/19289 , we missed
another place: `rollup`. `Seq.init.toSeq` also returns a `Stream`, we should
fix it too.
## How was this patch tested?
manually
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark bug
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19298.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 #19298
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commit aa263d7b16630ad134e80fbf68a42165667446b5
Author: Wenchen Fan <wenc...@databricks.com>
Date: 2017-09-21T00:12:25Z
Expand.projections should not be a Stream
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