match2.js

match2.js

db.articles.aggregate(
    [{ $match: { 
          $or: [{ 
            score: { $gt: 90 } 
          }, { 
            author: "dave" 
          }}] 
    }}]
);

// Returns these documents
{ "_id" : ObjectId("512bc95fe835e68f199c8686"), "author" : "dave", "score" : 80 }
{ "_id" : ObjectId("512bc962e835e68f199c8687"), "author" : "dave", "score" : 85 }
{ "_id" : ObjectId("55f5a1d3d4bede9ac365b25a"), "author" : "li", "score" : 94 }
{ "_id" : ObjectId("55f5a1d3d4bede9ac365b25b"), "author" : "ty", "score" : 95 }