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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: None
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This should be an enhancement, I can only select Bug as issue type.
The index name of $vectorSearch should only be required when multiple vector indexes are present. Mongo should throw an error if the index name is missing (or mis-spelled).
Ideally, the index name can be derived from $vectorSearch.path. If the index is unique for a path, then it should be used. This change is to improve user experience and provide some safety margin for usage.
- related to
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                    SERVER-110974 Consider having $vectorSearch error in the absence of an index -         
- Backlog
 
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