Github user hyunsik commented on the pull request:
https://github.com/apache/tajo/pull/411#issuecomment-78192690
Welcome,
We need to keep the code size small. It is very important because the code
size is highly relative to the maintenance cost. BTW, this patch includes too
many duplicated codes. You should try to find the minimum branch point to
suppress code duplicates.
Please refer this comment. I think that this approach is the best for us.
https://issues.apache.org/jira/browse/TAJO-1206?focusedCommentId=14229312
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