Echo Li 2013-03-19, 18:14
-Re: Has anybody used index on hive tables? how was the performance gain? and best way to do index?
indexes are definitely a help if you have aggregation function in your
queries or group by's
sometimes if you have crossjoins it will be helpful as well
On Tue, Mar 19, 2013 at 11:44 PM, Echo Li <[EMAIL PROTECTED]> wrote:
> Good day,
> I wonder how much hive index helps, I had a test before seems it take long
> time to build index, hope to learn something from folks here that have good
> experience on it.
Echo Li 2013-03-19, 18:47