There is an issue with UPDATE queries.
For a query:
following error is returned:
The query being pushed is invalid:
Couchbase complains about a '('. And from what I found, it is the first use of META() function in the command.
On that topic I've found a note in Couchbase docs:
Every document is identified by a document ID, which can be automatically generated (as a UUID) or determined by the application; the only constraints are that it must be unique within the database, and it can't be changed.