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Type:
Improvement
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Resolution: Done
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Priority:
Minor - P4
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None
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Affects Version/s: None
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Component/s: Write Ops
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None
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Query
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Fully Compatible
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None
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None
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None
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For the following update (which results in an insert) this should not be allowed because it produces a document without constant _id field ordering:
db.a.update({"_id.a":1, "_id.b":2}, {$inc:{x:1}}, {upsert:true})
db.a.find()
{_id:{a:1, b:2}, x:1}
db.a.remove({})
db.a.update({"_id.b":1}, {$inc:{x:1}, $setOnInsert:{"_id.a":2}}, {upsert:true})
db.a.find()
{_id:{b:1,a:2}, x:1}