How to disable sorting on click of header

We have two header rows, Is it possible to make disable sorting on one of the header for a particular column

You can use “na” sorting type

Actually there are two header One upper header and One just below it. and They cater to same column eg Investor Name. So i want to block sorting for that column on click of upper header and want to keep sorting when click on the header just below it.

we have two rows of header.

Unfortunately it impossible to block sorting by clicking on upper header row but keep by clicking on header just below it