Flow Decision not work with compare data table colomn

i have a problem with flow decision task.
I have a flow, where I have to compare data from two data tables, to decide whether or not to perform some operations.

If I use the IF command, with the string shown below,
the flow works.
Positive or negative message, depending on.

I’d like to put this string on a Flow Decision. It’s possible?

Hi @AaronMark,
The question is from where you got this row variable. In first screen I guess it comes from For each row activity. So if this must work for Flow Decision you need to pass this somehow so it will know what this variable is.