arangod> db.names.ensureSkiplist("first");
{ "id" : "names/42725508", "unique" : false, "type" : "skiplist", "fields" : ["first"], "isNewlyCreated" : true }

arangod> db.names.save({ "first" : "Tim" });
{ "_id" : "names/42856580", "_key" : "42856580", "_rev" : "42856580" }
arangod> db.names.save({ "first" : "Tom" });
{ "_id" : "names/42922116", "_key" : "42922116", "_rev" : "42922116" }
arangod> db.names.save({ "first" : "John" });
{ "_id" : "names/42987652", "_key" : "42987652", "_rev" : "42987652" }
arangod> db.names.save({ "first" : "Tim" });
{ "_id" : "names/43053188", "_key" : "43053188", "_rev" : "43053188" }
arangod> db.names.save({ "first" : "Tom" });
{ "_id" : "names/43118724", "_key" : "43118724", "_rev" : "43118724" }