Github user hyunsik commented on the pull request:
https://github.com/apache/tajo/pull/428#issuecomment-99620435
Hi @navis,
The patch looks good to me. The effect is obvious because it just changes
```List<Pair<Long,Long>>``` into a list of ```long``` values. Here is my +1.
There is one trivial things. You changed host to hostAddress, still meaning
only hostname or ip address. But, the field includes ```hostname:port```. If
you agree, I'd like to change it to just ```address```.
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