Github user mallman commented on the issue:
https://github.com/apache/spark/pull/16578
> @mallman (just pure curiosity :) ) how is it possible that this NPE was
not found by automated tests? There's no single test case in entire spark suite
which verifies scenarios like that described by @snir ?
A good question. This probably calls for a new unit test...
Presently I'm not feeling too motivated to invest more time in this PR
unless and until a reviewer shows some interest in it. The last time I received
any feedback from a reviewer was seven months ago. Not a word since. I'm
surprised, as my past experience submitting PRs has been nothing like this.
Let's try @hvanhovell. He also works on Spark SQL. Herman, any position on
this? Thank you.
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