Details
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Improvement
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Resolution: Duplicate
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Major - P3
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None
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None
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None
Description
The indexOnly flag is currently always false for projections including sub-documents:
>db.test.insert({x:1,p: {s:1}})
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>db.test.ensureIndex({x:1,'p.s':1})
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>db.test.find({x:1},{x:1,'p.s':1,_id:0}).explain().indexOnly
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false
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no different query projection seems to enable indexOnly : true on sub documents.
Attachments
Issue Links
- duplicates
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SERVER-2104 covered index should support dotted fields
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- Closed
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- related to
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SERVER-10448 Revamp explain() formatting
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- Closed
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