arangosh> db.ids.ensureUniqueSkiplist("myId");
{
"id" : "ids/1117182407",
"type" : "skiplist",
"fields" : [
"myId"
],
"unique" : true,
"sparse" : false,
"isNewlyCreated" : true,
"code" : 201
}
arangosh> db.ids.save({ "myId": 123 });
{
"_id" : "ids/1117444551",
"_rev" : "1117444551",
"_key" : "1117444551"
}
arangosh> db.ids.save({ "myId": 456 });
{
"_id" : "ids/1117641159",
"_rev" : "1117641159",
"_key" : "1117641159"
}
arangosh> db.ids.save({ "myId": 789 });
{
"_id" : "ids/1117837767",
"_rev" : "1117837767",
"_key" : "1117837767"
}
arangosh> db.ids.save({ "myId": 123 });
[ArangoError 1210: cannot create document, unique constraint violated]