arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/111023",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/111026",
"_key" : "111026",
"_rev" : "_YOn1f36--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/111030",
"_key" : "111030",
"_rev" : "_YOn1f36--B"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/111033",
"_key" : "111033",
"_rev" : "_YOn1f36--D"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/111036",
"_key" : "111036",
"_rev" : "_YOn1f4---_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/111039",
"_key" : "111039",
"_rev" : "_YOn1f4---B"
}