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  1. Core Server
  2. SERVER-47316

Upgrade/downgrade testing for hidden indexes

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    • Fully Compatible
    • v4.4
    • Query 2020-04-20, Query 2020-05-04

      • Test that confirms that index hiding is only possible in FCV 4.6 and that unhiding is possible in both FCV 4.6 and 4.4.
      • Test that confirms a binary 4.4 mongod will fail to start gracefully when the index catalog has a hidden index.
      • Test that a 4.4 binary initial-syncing from a binary 4.6 / FCV 4.4 node will fail gracefully when encountering a hidden index.
      • Test that a 4.4 binary that receives an index create or collMod oplog entry with a hidden index flag fails gracefully.

            Assignee:
            arun.banala@mongodb.com Arun Banala
            Reporter:
            bernard.gorman@mongodb.com Bernard Gorman
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