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Type:
Bug
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Resolution: Done
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Priority:
Major - P3
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Affects Version/s: 2.5.4
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Component/s: None
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None
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Fully Compatible
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ALL
getLastError appears to always return true for updatedExisting when the last operation was an update, regardless of whether a document was updated or not.
> db.test.remove()
SingleWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 0,
"nUpserted" : 0,
"nUpdated" : 0,
"nModified" : 0,
"nRemoved" : 2,
"upserted" : [ ]
})
> db.test.insert({i: 1})
SingleWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 1,
"nUpserted" : 0,
"nUpdated" : 0,
"nModified" : 0,
"nRemoved" : 0,
"upserted" : [ ]
})
> db.test.update({i: 5}, {$set: {i: 500}})
SingleWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 0,
"nUpserted" : 0,
"nUpdated" : 0,
"nModified" : 0,
"nRemoved" : 0,
"upserted" : [ ]
})
> db.runCommand('getLastError')
{
"updatedExisting" : true,
"n" : 0,
"connectionId" : 2291,
"syncMillis" : 0,
"writtenTo" : null,
"err" : null,
"ok" : 1
}
> db.test.find()
{ "_id" : ObjectId("52d07a4cd05c85fb8d3f5e3d"), "i" : 1 }
> db.test.update({i: 5}, {$set: {i: 1}})
SingleWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 0,
"nUpserted" : 0,
"nUpdated" : 0,
"nModified" : 0,
"nRemoved" : 0,
"upserted" : [ ]
})
> db.runCommand('getLastError')
{
"updatedExisting" : true,
"n" : 0,
"connectionId" : 2291,
"syncMillis" : 0,
"writtenTo" : null,
"err" : null,
"ok" : 1
}
> db.test.find()
{ "_id" : ObjectId("52d07a4cd05c85fb8d3f5e3d"), "i" : 1 }
- related to
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- Closed
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