GitHub user ueshin opened a pull request:
https://github.com/apache/spark/pull/18524
[SPARK-21300][SQL] ExternalMapToCatalyst should null-check map key prior to
converting to internal value.
## What changes were proposed in this pull request?
`ExternalMapToCatalyst` should null-check map key prior to converting to
internal value to throw an appropriate Exception instead of something like NPE.
## How was this patch tested?
Added a test and existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ueshin/apache-spark issues/SPARK-21300
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18524.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 #18524
----
commit d93f5abdf1c56c618838f6797b94e4b2a86217cd
Author: Takuya UESHIN <[email protected]>
Date: 2017-07-04T06:59:54Z
Modify ExternalMapToCatalyst to null-check map key prior to converting to
internal value.
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