arangosh> db.ids.ensureIndex({ type: "skiplist", fields: [ "myId" ], unique: true });
{
"deduplicate" : true,
"fields" : [
"myId"
],
"id" : "ids/74234",
"isNewlyCreated" : true,
"name" : "idx_1641835679946113024",
"selectivityEstimate" : 1,
"sparse" : false,
"type" : "skiplist",
"unique" : true,
"code" : 201
}
arangosh> db.ids.save({ "myId": 123 });
{
"_id" : "ids/74238",
"_key" : "74238",
"_rev" : "_ZG8Lmgu--_"
}
arangosh> db.ids.save({ "myId": 456 });
{
"_id" : "ids/74240",
"_key" : "74240",
"_rev" : "_ZG8Lmgy---"
}
arangosh> db.ids.save({ "myId": 789 });
{
"_id" : "ids/74242",
"_key" : "74242",
"_rev" : "_ZG8Lmgy--A"
}
arangosh> db.ids.save({ "myId": 123 });
[ArangoError 1210: unique constraint violated - in index idx_1641835679946113024 of type skiplist over 'myId'; conflicting key: 74238]