arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/16275",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16278",
"_key" : "16278",
"_rev" : "_W0jzAa---_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16282",
"_key" : "16282",
"_rev" : "_W0jzAaC--_"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/16285",
"_key" : "16285",
"_rev" : "_W0jzAaC--B"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16288",
"_key" : "16288",
"_rev" : "_W0jzAaC--D"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16291",
"_key" : "16291",
"_rev" : "_W0jzAaC--F"
}