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    Type:Bug 
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    Resolution: Duplicate
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    Priority:Major - P3 
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    None
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    Affects Version/s: None
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    Component/s: Querying
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        Query
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        ALL
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> db.bar.drop() false > db.bar.insert({_id:1}) > db.bar.insert({_id:2}) > db.bar.find({x:null}, {_id:1, x:1}) { "_id" : 1 } { "_id" : 2 } > db.bar.ensureIndex({x:1, _id:1}) > db.bar.find({x:null}, {_id:1, x:1}) { "x" : null, "_id" : 1 } { "x" : null, "_id" : 2 }
- duplicates
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                    SERVER-23229 Projection incorrectly returns null value instead of missing field to user if projection is covered -         
- Backlog
 
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- is related to
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                    SERVER-23229 Projection incorrectly returns null value instead of missing field to user if projection is covered -         
- Backlog
 
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                    SERVER-5580 covered indexes are improperly applied when arrays do not have multiple values -         
- Closed
 
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                    SERVER-11833 Projected field order different under new query framework -         
- Closed
 
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                    SERVER-12056 hint() is not respected in find() -         
- Closed
 
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- related to
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                    SERVER-4529 fast count mode should not be used when matching against null -         
- Closed
 
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                    SERVER-12869 Index null values and missing values differently -         
- Backlog
 
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