Collect stats doubt - response (4) by tigerjgd

thanks both for your replies..
@saeed --> i understood your second point.
But i differ in the 1st , i , i have seen even if the join conditions are together, collecting single column stats use to give me same estimatedcount and actual count .Its a lil tricky :) :)
Or is it something like even after collecting single column stats, in PMON actual and estimated row count differs , we can go for multi column .
Or is there any thump rule for it.?