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Type: Bug
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Resolution: Gone away
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Priority: Blocker - P1
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Affects Version/s: None
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Component/s: Query Execution
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ALL
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QE 2022-05-02
Running a $lookup/$project aggregation causes an invariant failure in sbe_stage_builder.h on 6.0.0-alpha:
{"t":{"$date":"2022-04-14T12:07:04.326-06:00"},"s":"F", "c":"ASSERT", "id":23079, "ctx":"conn1","msg":"Invariant failure","attr":{"expr":"it != _slots.end()","file":"src/mongo/db/query/sbe_stage_builder.h","line":261}}
This failure occurs on Linux, OSX, and Windows and is completely reproducible. This $lookup/$project query has been part of the .NET/C# driver test suite for many years and runs successfully on earlier server versions.