Hello experts,
I have to create a data load mapping and I have a issue with a field that is NULL (No spaces).
My file has tab separator and second column could be empty. I add an image to better understanding.

In this snapshot there isn't any space. So in second line of data is NULL value (no space).
If I add this mapping not work:

Also I try to apply a #sql using Like expression, but neither works...

Is possible to fix this issue?
Thanks!