Hello,
I’d like to retrieve documents from two unrelated buckets, are there any performance gains from using a Union instead of two queries?
select x from bucket.collection USE KEYS = "xyz"
UNION
select y from bucket2.collection2 USE KEYS = "abc"
I remember with CB4, getting the document directly by key would call the data server directly instead of calling the query server, does USE KEYS have the same gains in the latest CB7+ ?