Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/558#issuecomment-97308878
Looks great! The test failure is due to the too much memory usage in python
udfs. It's my fault. Sorry.
This problem will be solved if you rebase.
I have one suggestion. Even though the annotation name is ```SimpleTest```,
it looks very proper for our all query tests.
I think that we should test more complex and long queries. For such
queries, it would be difficult to write sqls in the ```SimpleTest```
annotation. How about extending it to support sql files like the current query
tests?
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