custom report per customer

HI all

so my situation is this,  useing DPA to backups multi tenant VCD.  I need a report that show customer ID with vms and stats for vms.  

for example

custmer1 #of VMs Total Memory and Total cpu 

I looked all of avamar and DPA documents but did not find any thing 

my best guess is to query postgres but I need to know table structure to find out the data I need 

thanks

Govind