arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/16051",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16054",
"_key" : "16054",
"_rev" : "_WcJRgYe--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16058",
"_key" : "16058",
"_rev" : "_WcJRgYi--_"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/16061",
"_key" : "16061",
"_rev" : "_WcJRgYi--B"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16064",
"_key" : "16064",
"_rev" : "_WcJRgYi--D"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16067",
"_key" : "16067",
"_rev" : "_WcJRgYm--_"
}