Github user marmbrus commented on the issue:
https://github.com/apache/spark/pull/14214
Thanks for working on this, but I'm tempted to close this as "won't fix".
Its likely we are going to have to rewrite the incremental planner completely
for 2.1 and this is just a minor inefficiency if I understand correctly.
In a more general comments:
- There's no tests
- If you find yourself needing to reference a bug/JIRA in several
different places throughout the code, perhaps we need to reexamine the problem
more holistically, rather than continue to pile on hacks.
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