SERVER-192 query that just returns value in index should get data from index

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• Closed

SERVER-5775 index-only query apparently not executed as index-only

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• Closed

SERVER-6253 Covered index not working on sub documents

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• Closed

SERVER-8659 Allow projections with dotted fields to be covered

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• Closed

SERVER-12469 Allow subdocuments to be used in covered indexes

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• Closed