MongoDB shell getCollectionNames not working properly

Question

When in mongo shell 3.x I found this strange behaviour:

• Typing db.getCollectionNames() i get [] but I know that there are collections
• Typing db.myColl.findOne() in fact it returns a document as I expect

Does anyone know why? Thanks

Answer 1

You're already on 3.x. so this shouldn't have any impact i take ?

docs.mongodb.com/manual/reference/method/db.getCollectionNames as the link says it returns empty array for shell lower than 3.X