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  1. Core Server
  2. SERVER-20267

Upconvert $explain option for OP_QUERY find to an explain command on mongos

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    Details

    • Type: Task
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.1.8
    • Component/s: Querying, Sharding
    • Labels:
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      Description

      Currently, if an OP_QUERY find is redirected to the new mongos read path, the $explain option will be ignored. We need to either explicitly error and require clients to use the explain command, or support $explain in the new path.

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