I'm not sure if you can achieve this with data blending. Is there a reason why you don't want to join the datasources? Data join will be a better solution instead of blending.
Below is a not-so-perfect solution by swapping the primary and secondary datasources, which it seems you don't want to do. The only issue is that 'Code Breakdown' filter has a null value which won't go away. Check it out and see if it helps in any way or at least give you new ideas on reaching a solution. Otherwise, I suggest you join the datasets instead.
Hope this helps.
Combined Comment and Row Filter are both table calcs which need to be computed along [Comment].
Thanks for the Reply Ossai.
Yeah, it works when you use the comments as the Primary as mentioned before with the Feeder and Includer calculations
Except for this situation. I need to use the other as the Primary.
And unfortunately correct I need to blend. I actually connecting to two different datasources in difference systems - Oracle and Netezza actually.
Thanks again for your reply tho Ossai.
Unfortunately, couldn't blend this one.
So I created a parameter control on the values I needed to filter.