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  1. Core Server
  2. SERVER-25954

Support more granular collation specification

        Details

        • Type: New Feature
        • Status: Open
        • Priority: Major - P3
        • Resolution: Unresolved
        • Affects Version/s: 3.4.0
        • Fix Version/s: Backlog
        • Component/s: Querying
        • Labels:
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          Description

          Additional use cases for collation would be enabled if it could be specified at a more granular level than per-operation. Some examples:

          • A compound index or sort criteria with different collations for each key
          • A query filter with different collations per operator
          • An aggregation pipeline with different collations per stage (e.g. a case-insensitive collation for a $match and a case-sensitive one for a subsequent $sort)
          • A read-only view with different collations for the view itself, a view that it depends on, and an operation on the view (this would be enabled by allowing a collation per aggregation stage)

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            • Comments
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            asya Asya Kamsky added a comment -

            All of these except the last bullet are reasonable requests.

            The last bullet seems to enable some security leaks.

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            asya Asya Kamsky added a comment - All of these except the last bullet are reasonable requests. The last bullet seems to enable some security leaks.

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                Dates

                • Created:
                  Updated: