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  1. Core Server
  2. SERVER-36667

Add ability to have a mixture of sharded and unsharded foreign namespaces in an aggregation

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    • Icon: Task Task
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 4.1.3
    • None
    • Aggregation Framework
    • None
    • Fully Compatible
    • Query 2018-08-27

    Description

      Currently, a pipeline stage can indicate whether a foreign namespace is allowed to be sharded but it cannot say which foreign namespace can be sharded. For instance, a $lookup into an unsharded namespace followed by a $out into a sharded namespace is a valid pipeline, however mongos will reject it here

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            nicholas.zolnierz@mongodb.com Nicholas Zolnierz
            nicholas.zolnierz@mongodb.com Nicholas Zolnierz
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