arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/17435",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17438",
"_key" : "17438",
"_rev" : "_Vsb0aUa---"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17442",
"_key" : "17442",
"_rev" : "_Vsb0aUa--_"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/17445",
"_key" : "17445",
"_rev" : "_Vsb0aUa--A"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17448",
"_key" : "17448",
"_rev" : "_Vsb0aUe---"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17451",
"_key" : "17451",
"_rev" : "_Vsb0aUe--_"
}