This might be a bug. Are you testing with sample data? Will it be possible to send me the values in col_b? Alternatively, you can file a bug and upload the data for failing column. I can take a look at it.  

There is another bug that was opened recently.
You can try applying patch from HIVE-6382 on top of HIVE-5991 and see if it solves the issue. HIVE-6382 added some protection against integer overflows. Let me know if it helps.

Prasanth Jayachandran

On Feb 12, 2014, at 3:46 PM, Bryan Jeffrey <[EMAIL PROTECTED]> wrote:

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