Github user hyunsik commented on the pull request:
https://github.com/apache/tajo/pull/191#issuecomment-58391404
+1
It seems to borrow Hadoop's implementation. It looks good to me. I think
that it can be merged to master before 0.9.0 release.
Before committing it, Could you add one comment line to record that we
borrow this class from Hadoop? It would be useful for other guys to maintain
the code in the future.
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