arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/17928",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17931",
"_key" : "17931",
"_rev" : "_V8R1T1W--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17935",
"_key" : "17935",
"_rev" : "_V8R1T1i--_"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/17938",
"_key" : "17938",
"_rev" : "_V8R1T1m--_"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17941",
"_key" : "17941",
"_rev" : "_V8R1T1q--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17944",
"_key" : "17944",
"_rev" : "_V8R1T1u--_"
}