Because when you do select * the query just has to read and return the
resultl but when you give query under query suffle sort and comparison
happens thats why mapreduce...
* Shashwat Shriparv*
http://profile.yahoo.com/SWXSTW3DVSDTF2HHSRM47AV6DI/] <[EMAIL PROTECTED]>
On Fri, Feb 14, 2014 at 4:15 PM, Nitin Pawar <[EMAIL PROTECTED]>wrote: