need help with a query in Couchbase enviroment.
Both document 1 and document 2 is in the same bucket.
First the query will get the document message1 using this query:
SELECT uid, message, sent_by FROM bucket USE KEYS "message1"
Second, it need to get username from document 2. How can i create a join statement that will fetch username from a given document name, using the query above?
Overview
Document 1 document name = message1
[
{
"uid": "1",
"message": "hello",
"sent_by": "username"
}
]
Document 2 document name = user1
[
{
"username": "username"
}
]
Assuming that the name of Document2 is based on the uid of Document1, that is, "user1" is based on uid=1, you can do the following:
SELECT d1.uid, d1.message, d1.sent_by, d2.username
FROM mybucket d1 USE KEYS "message1"
JOIN mybucket d2 ON KEYS "user" || d1.uid;
来源:https://stackoverflow.com/questions/37373860/couchbase-n1ql-join-query