Hi Sid,
Salting is normally a technique to add random characters to existing values.
In big data we can use salting to deal with the skewness.
Salting in join cas be used as :
* Table A-*
Col1, join_col , where join_col values are {x1, x2, x3}
x1
x1
x1
x2
x2
x3
*Table B-*
join_col, Col3 , where
Hi Team,
I was trying to understand the Salting technique for the column where there
would be a huge load on a single partition because of the same keys.
I referred to one youtube video with the below understanding:
So, using the salting technique we can actually change the joining column