If you search is like this (last command being stats, aggregate function for Memory can be different)
your base search | ... other code...
| stats max(Memory) as Memory values(DiskGB) as DiskGB by Service
Then try like this
your base search | ... other code...
| stats max(Memory) as Memory values(DiskGB) as DiskGB by Service delim="," | nomv DiskGB
... View more