arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/17455",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17458",
"_key" : "17458",
"_rev" : "_VvTSFRm---"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17462",
"_key" : "17462",
"_rev" : "_VvTSFRq---"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/17465",
"_key" : "17465",
"_rev" : "_VvTSFRq--_"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17468",
"_key" : "17468",
"_rev" : "_VvTSFRq--A"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17471",
"_key" : "17471",
"_rev" : "_VvTSFRu---"
}