It seems that it is possible to update illegal top level fields ($ref, $id, $db). Note that this fails if you use insert, instead of update.
> db.test.drop()
|
true
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> db.test.update({_id:0}, {_id:0, $ref: "1", $id: 1, $db:"1"}, true)
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WriteResult({ "nMatched" : 0, "nUpserted" : 1, "nModified" : 0, "_id" : 0 })
|
> db.test.findOne()
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{ "_id" : 0, "$ref" : "1", "$id" : 1, "$db" : "1" }
|
> db.test.insert({_id: 1, $ref: "1", $id: 1, $db: "1"})
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WriteResult({
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"nInserted" : 0,
|
"writeError" : {
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"code" : 2,
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"errmsg" : "Document can't have $ prefixed field names: $ref"
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}
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})
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> db.test.find()
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{ "_id" : 0, "$ref" : "1", "$id" : 1, "$db" : "1" }
|
> db.runCommand({buildinfo:1})
|
{
|
"version" : "2.7.2-pre-",
|
"gitVersion" : "87d09bc9cfe898f093c4d76ca5aad807c2e817e7",
|
"OpenSSLVersion" : "",
|
"sysInfo" : "Linux localhost.localdomain 3.13.10-200.fc20.x86_64 #1 SMP Mon Apr 14 20:34:16 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49",
|
"loaderFlags" : "-fPIC -pthread -Wl,-z,now -rdynamic",
|
"compilerFlags" : "-Wnon-virtual-dtor -Woverloaded-virtual -std=c++11 -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -pipe -Werror -O3 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -fno-builtin-memcmp -std=c99",
|
"allocator" : "tcmalloc",
|
"versionArray" : [
|
2,
|
7,
|
2,
|
-100
|
],
|
"javascriptEngine" : "V8",
|
"bits" : 64,
|
"debug" : false,
|
"maxBsonObjectSize" : 16777216,
|
"ok" : 1
|
}
|
>
|
- related to
-
SERVER-14244 Additional tests for setting fields with $ names
-
- Closed
-