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    Type:Task 
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    Resolution: Duplicate
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    Priority:Major - P3 
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    None
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    Affects Version/s: None
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    Component/s: None
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    None
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        Query 2020-02-10
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        None
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        None
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        None
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        None
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- depends on
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                    SERVER-45399 Add basic union aggregation stage for unsharded collections -         
- Closed
 
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                    SERVER-45530 Implement $match and $project pushdown optimization into $unionWith sub-pipeline -         
- Closed
 
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- is depended on by
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                    SERVER-45712 Remove flag guard for $unionWith -         
- Closed
 
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