How to merge columns with the same name

Hi guys,

I already spent a lot of time to figure out this, but still have no solution.
I want to join query from Prometheus and Google Sheet. This is the Prometheus metric:


I use label to fields transformation and outer join transformation, but I got duplicating columns with like this:

Is there any solutions to join this two queries without duplicating columns?
Thanks a lot in advance

so you have two queries in the same panel? can you share the raw data for each?

Can you inspect your raw request and response and then share it in a code-block?

Can you use the data tab inside the Grafana Inspector panel to share your data?