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Document initial random value for ObjectId counter #641

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Merged
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Feb 12, 2013
Merged

Document initial random value for ObjectId counter #641

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2 changes: 1 addition & 1 deletion source/core/object-id.txt
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Expand Up @@ -13,7 +13,7 @@ constructed using:
- a 4-byte timestamp,
- a 3-byte machine identifier,
- a 2-byte process id, and
- a 3-byte counter.
- a 3-byte counter, starting with a random value.

In MongoDB, documents stored in a collection require a unique
:term:`_id` field that acts as a :term:`primary key`. Because
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