Column group statistics is not supported in hive yet. 

Thanks
Prasanth

Sent from my iPhone

> On Jun 8, 2014, at 6:33 PM, Alex Nastetsky <anastet...@spryinc.com> wrote:
> 
> Table statistics collection was added in HIVE-33 (numRows, rawDataSize, etc). 
> Is there anything that lets you create your own statistics gathering? 
> 
> For example, given table A with columns x, y, z, I want to gather 
> count(distinct x, y) as a statistic that would be stored in the metastore.
> 
> I know there exist column level statistics that have approximations for 
> distinct for a single column, but that doesn't help my use case above where I 
> have 2 columns involved.
> 
> Thanks,
> Alex.

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