Covering Index for all properties of the document

Couchbase Server
1

How can I create a covering index that includes all the properties of the document? I don’t want to have to change my index everytime a new property is added to the document.
I was trying to include a * … but that doesn’t work…
CREATE INDEX idx_example1 ON mybucket(type,nameId,*) WHERE (type = “theType”)

2

Index keys must be explicit.