arangosh> db.ids.ensureIndex({ type: "skiplist", fields: [ "name.first", "name.last" ], unique: true });
{
"id" : "ids/15315",
"type" : "skiplist",
"fields" : [
"name.first",
"name.last"
],
"unique" : true,
"sparse" : false,
"isNewlyCreated" : true,
"code" : 201
}
arangosh> db.ids.save({ "name" : { "first" : "hans", "last": "hansen" }});
{
"_id" : "ids/15318",
"_key" : "15318",
"_rev" : "_UWy-PY6---"
}
arangosh> db.ids.save({ "name" : { "first" : "jens", "last": "jensen" }});
{
"_id" : "ids/15322",
"_key" : "15322",
"_rev" : "_UWy-PY6--_"
}
arangosh> db.ids.save({ "name" : { "first" : "hans", "last": "jensen" }});
{
"_id" : "ids/15325",
"_key" : "15325",
"_rev" : "_UWy-PZ----"
}
arangosh> db.ids.save({ "name" : { "first" : "hans", "last": "hansen" }});
[ArangoError 1210: cannot create document, unique constraint violated]