arangosh> db.names.ensureIndex({ type: "persistent", fields: [ "first" ] });
{
"deduplicate" : true,
"fields" : [
"first"
],
"id" : "names/17918",
"isNewlyCreated" : true,
"sparse" : false,
"type" : "persistent",
"unique" : false,
"code" : 201
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17921",
"_key" : "17921",
"_rev" : "_WK_Oobi--_"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17925",
"_key" : "17925",
"_rev" : "_WK_Oobi--B"
}
arangosh> db.names.save({ "first" : "John" });
{
"_id" : "names/17928",
"_key" : "17928",
"_rev" : "_WK_Oobi--D"
}
arangosh> db.names.save({ "first" : "Tim" });
{
"_id" : "names/17931",
"_key" : "17931",
"_rev" : "_WK_Oobi--F"
}
arangosh> db.names.save({ "first" : "Tom" });
{
"_id" : "names/17934",
"_key" : "17934",
"_rev" : "_WK_Oobm--_"
}