Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/423#issuecomment-83553971
Sorry. There are some misunderstandings. I mean that unit tests should be
added for this issue because it is difficult to expect what kinds of errors we
will meet.
However, I think it will be also difficult to write some new test functions
to test only concurrent execution of multiple stages. So, I suggest adding a
parameter to existing tests to test this feature. If so, we can test Tajo's
query processing with and without concurrent execution.
I think you already know the parameterized test, but you can find an
example at TestJoinQuery.
What do you think?
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