arangosh> db.example.ensureIndex({ type: "skiplist", fields: [ "a", "b" ] }); { "id" : "example/8757", "type" : "skiplist", "fields" : [ "a", "b" ], "unique" : false, "sparse" : false, "isNewlyCreated" : true, "code" : 201 } arangosh> var indexInfo = db.example.getIndexes().map(function(x) { return x.id; }); arangosh> indexInfo; [ "example/0", "example/8757" ] arangosh> db._index(indexInfo[0]) { "id" : "example/0", "type" : "primary", "fields" : [ "_key" ], "selectivityEstimate" : 1, "unique" : true, "sparse" : false, "code" : 200 } arangosh> db._index(indexInfo[1]) { "id" : "example/8757", "type" : "skiplist", "fields" : [ "a", "b" ], "unique" : false, "sparse" : false, "code" : 200 }