Github user jingyimei commented on the issue:
https://github.com/apache/madlib/pull/241
@njayaram2
```
Another issue I found but forgot to mention in the review:
The __id__ column has double values instead of integers. For instance, I
found values such as 0.20000000000000000000 for that column in the output table.
This issue also happens only when the module is used without specifying a
value for the buffer_size param.
```
This is the caused by the same math.ceil bug as mentioned above. will take
care of this.
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