GitHub user maropu opened a pull request:
https://github.com/apache/spark/pull/13892
[SPARK-16192][SQL] Add type checks in CheckAnalysis
## What changes were proposed in this pull request?
`CollectSet` cannot have map-typed data because MapTypeData does not
implement `equals`.
So, this pr is to add type checks in `CheckAnalysis`.
## How was this patch tested?
Added tests to check failures when we found map-typed data in `CollectSet`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/maropu/spark SPARK-16192
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13892.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 #13892
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commit 511047479d7bef9f421df83334fab64a78d414cd
Author: Takeshi YAMAMURO <linguin....@gmail.com>
Date: 2016-06-24T10:33:49Z
Add type checks in CheckAnalysis
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