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Type:
Task
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Query Execution
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Fully Compatible
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QE 2023-05-15, QE 2023-05-29, QE 2023-06-12, QE 2023-06-26, QE 2023-07-10, QE 2023-07-24, QE 2023-08-07, QE 2023-08-21
When we use $addToSet to add an element to the array, the entire new array is recorded in the oplog. This leads to large change stream events.
Today $addToSet does not guarantee a particular ordering of elements in the modified set, so it could be modified to always add the element to the end of the array, similar to $push, and produce message like { 'arrayField.100': 'value' }
- is duplicated by
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SERVER-16484 Optimize $addToSet oplog generation when possible
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- Closed
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- related to
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- Backlog
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