arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/16258",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16261",
"_key" : "16261",
"_rev" : "_XBu2JIS--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16265",
"_key" : "16265",
"_rev" : "_XBu2JIS--B"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/16268",
"_key" : "16268",
"_rev" : "_XBu2JIW--_"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/16271",
"_key" : "16271",
"_rev" : "_XBu2JIW--B"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/16274",
"_key" : "16274",
"_rev" : "_XBu2JIW--D"
}