Thanks for the reply Bejoy.
On Sun, Sep 30, 2012 at 6:35 AM, Bejoy KS wrote:
> Hi Abshiek
>
>
> No need of any similar columns for map join to work. It is just taking the
> join process to mapper rather then doing the same in a reducer.
>
> The actual bottle neck is the single reducer. Need to f
Thanks for the reply Bejoy.
I tried to map join, by setting the property mentioned by you and Even
increased the small table file size
20k table size would be not more than 200 mb but it doesnot work.
Cartesian product of tables, they dont have any similar columns does
map join work here??
By ap
thank you.
On Mon, Jun 11, 2012 at 9:03 AM, Bejoy KS wrote:
> You just need to enable map joins before executing your join query.
> hive> Set hive.auto.convert.join=true
>
> Regards
> Bejoy KS
>
> Sent from handheld, please excuse typos.
>
> -Original Messa
