Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/441#issuecomment-84601306
Thanks @navis. I will happily revise your work, and share with you.
Before starting revision, I have one more thing to talk with you.
IMHO, the simple test is not appropriate for query plan verifications. As
you know, different query plans can produce the same result, but their
efficiency can be significantly different. So, we must add a sufficient amount
of tests to check whether Tajo's query planner always generates the best plan,
especially for complex queries.
So, I wonder what kinds of queries will be used for simple tests.
Do you have any good idea?
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