elasticsearch - Joins in elastic search -


i have 2 documents following structures

shipment_received :      {      header level detail     "itemid" : "i1",     "quantity" : q1     "vendor" : "v1"    }  shipment_ordered :  {     header level details     "itemid" : "i2"     "quantity" : q2     "vendor":"v1"  }

for given vendor want find average difference in order quantity , received quantity. how can done using elastic search ?


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