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Type:
Bug
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Resolution: Unresolved
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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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Labels:
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Query Optimization
Mongoast considers the following syntaxes to be equivalent:
{ $unionWith: "foo" }
{ $unionWith: { coll: "foo" }}
{ $unionWith: { coll: "foo", pipeline: null } }
The third case is currently unsupported by the server, though, because null pipelines are not allowed.