Just wondering because it would mean there is a limit of 9999 documents in a collection...
No need to worry. I have a collection with roughly 20-30k items in it so far and constantly growing. Now issues that I can see.
One word of warning though. Don't use _key as your primary identifier for records. It's unique per instance, but not necessarily per cluster.
Alan Plum
Donkey Kong says Trans Rights.
Hi, I'm pluma from ArangoDB.
Yes, you can have any number of digits in your keys. Actually keys don't even have to be numeric. Keys are strings, not numbers. For the exact list of characters that can be in a key see the documentation: docs.arangodb.com/3.0/Manual/DataModeling/NamingC…
To summarize: any alphanumeric string between 1 and 254 characters long is fine.