[MongoDB] When name goes wrong

db.collectionName.find()

> work

db.collectionName.renameCollection("1")

> operation ok

db.1.find()

> error, illegal collection name




How to rollback?

db.getCollection("1").find()

> work

db.getCollection("1").renameCollection("properCollectionName")

> done



http://blog.onetechnical.com/2013/05/22/how-to-drop-a-mongodb-collection-with-an-illegal-name/