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› RoboMongo
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› 50 Tips and Tricks for MongoDB Developers
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› Snail in a Turtleneck
This topic created in 4540 days ago, the information mentioned may be changed or developed.
By default all references are stored as a DBRef with the traditional $id, $db and $ref fields but if you want you can configure your references to be simple and only store a MongoId.
_id: ObjectId("5297115940e7b47c050041ae"),
created_at: ISODate("2013-11-28T09:48:09Z"),
user: {
$ref: "user",
$id: ObjectId("5295afb940e7b4f8000041a7"),
$db: "xxx"
}
如果用 simple references，就没有 $ref, $db信息了，这样存储空间更小，但会不会存在什么问题？
_id: ObjectId("5297115940e7b47c050041ae"),
created_at: ISODate("2013-11-28T09:48:09Z"),
user: {
$ref: "user",
$id: ObjectId("5295afb940e7b4f8000041a7"),
$db: "xxx"
}
如果用 simple references，就没有 $ref, $db信息了，这样存储空间更小，但会不会存在什么问题？
1 replies • 1970-01-01 08:00:00 +08:00
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1
ijse Nov 28, 2013
应该不会吧，， stackoverflow上好多人也推荐用simple reference..
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