arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/73850",
"isNewlyCreated" : true,
"name" : "idx_1641835679852789762",
"selectivityEstimate" : 1,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/73854",
"_key" : "73854",
"_rev" : "_ZG8LmbO---"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/73856",
"_key" : "73856",
"_rev" : "_ZG8LmbO--A"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/73858",
"_key" : "73858",
"_rev" : "_ZG8LmbS---"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/73860",
"_key" : "73860",
"_rev" : "_ZG8LmbS--A"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/73862",
"_key" : "73862",
"_rev" : "_ZG8LmbW---"
}