我收到下列文件:
{
_id: id1 ,
tags: [ a , b ]
}
{
_id: id2 ,
tags: [ b , c , d ]
}
{
_id: id3 ,
tags: [ c , d , e ]
}
Now I want to get all documents, where ALL tags are a subset of a given set. For example the view keys [ a , b , c , d ] should return doc id1 and id2 but not document with id3 , because it contains the tag e which is not in the requested keys.
How would you write such a view in CouchDB?
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