Outer Join with lookups

Hi,

I am new to Sumo Logic. I am working on a dashboard where I need to join data from multiple lookups. The left most lookup in the join returns list of the servers. Other lookups return data for different metrics. If one of the lookups doesn't return data for a server, the server is excluded from the final output as all lookups are inner joined. I have googled and looked at the documentation but haven't found any option for outer join. Is there a way to perform outer join with lookups in Sumo Logic?

Thanks,

Anwar