Queries

gistfile1.txt

# Initial indexed count query
{   
   filter0(func: eq(tagkey_name, "server")) {
     tagkey_value @filter(NOT regexp(tagvalue_name,/web10009.*/)){
       C_0 as count(tagvalue_item)
     }
      sum(val(C_0))
   }
   filter1(func: eq(tagkey_name, "server")) {
     tagkey_value @filter(regexp(tagvalue_name,/web1000.*/)){
       C_1 as count(tagvalue_item)
     }
    sum(val(C_1))
   }
   filter2(func: eq(tagkey_name, "datacentre")) {
     tagkey_value @filter(eq(tagvalue_name,"dc1")){
       C_2 as count(tagvalue_item)
     }
     sum(val(C_2)
   }
}

# Actual results query
{
   tags(func: eq(tagkey_name, "server")) @ignorereflex @cascade{
     tagkey_name
     tagkey_value @filter(regexp(tagvalue_name, /web1000.*/)){
       tagvalue_name
       tagvalue_item{
         item_canonicalhash
         extra_tags:~tagvalue_item{
           tagvalue_name
           tagkey:~tagkey_value{
             tagkey_name
           }
         }
         const0:~tagvalue_item @filter(eq(tagvalue_name,"dc1")){
           tag:~tagkey_value @filter(eq(tagkey_name,"datacentre")){
           }
         }
         const1:~tagvalue_item @filter(NOT regexp(tagvalue_name,/web10009.*/)){
           tag:~tagkey_value @filter(eq(tagkey_name,"server")){
           }
         }
       }
     }
   }
}