It is possible use N1QL with the Golang SDK?
P.D.: out of curiosity, when will release final version?
There's no API in go-couchbase to invoke N1QL at this time. However, N1QL can be invoked via REST API from any HTTP client, including Golang:
Querying via HTTP
curl -HContent-Type:text/plain -XPOST http://localhost:8093/query -d 'QUERY_STRING'
We have not yet announced a Beta or GA date, but sometime this year.