Details
Description
This scenario is expected since the aggregate command doesn't use "snapshot" readConcern so writes can occur during aggregation, i.e. documents can get deleted between the $meta: indexKey stage and the $lookup stage.
This scenario is expected since the aggregate command doesn't use "snapshot" readConcern so writes can occur during aggregation, i.e. documents can get deleted between the $meta: indexKey stage and the $lookup stage.