Hi Vishal, Which part of the preparation are you considering? The column stitching in the executor side?
Regards, Jacky > 在 2016年10月12日，下午9:24，Kumar Vishal <[email protected]> 写道： > > Hi All, > Currently we are preparing the final result row wise, as number of columns > present in project list(80 columns) is high mainly measure column or no > dictionary column there are lots of cpu cache invalidation is happening and > this is resulting to slower the query performance. > > *I can think of two solutions for this problem.* > *Solution 1*. Fill column data vertically, currently it is horizontally(It > may not solve all the problem) > *Solution 2*. Use code generation for result preparation. > > This is an initially idea. > > -Regards > Kumar Vishal
