Basic traversals

1. Here is an example of getting all the unique routes sorted by distance

   for v, e, p IN 1..1  inbound "airports/SFO" flights
     sort e.Distance desc, e._from, e.UniqeCarrier 
     let route={
         _from: e._from,
         _to: e._to,
         UniqueCarrier: e.UniqueCarrier,
         Distance: e.Distance
     }
   return distinct route

2. Here is a snippet of the response:

   [
       {
           "_from": "airports/BOS",
           "_to": "airports/SFO",
           "UniqueCarrier": "UA",
           "Distance": 2704
       },
       {
           "_from": "airports/BOS",
           "_to": "airports/SFO",
           "UniqueCarrier": "AA",
           "Distance": 2704
       },
       {
           "_from": "airports/BOS",
           "_to": "airports/SFO",
           "UniqueCarrier": "B6",
           "Distance": 2704
       },
       {
           "_from": "airports/JFK",
           "_to": "airports/SFO",
           "UniqueCarrier": "AA",
           "Distance": 2586
       },

 

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