Remove old BSONElement comparator objects in favor of BSONElement::ComparatorInterface

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: Internal Code
    • Query Execution
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    • 3
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      As part of the collation project, SERVER-24508 introduced BSONElement::ComparatorInterface. This new interface can be used to compare or hash BSONElements in a way that respects a collator.

      The codebase still contains a few older comparator objects that can be used to make comparisons between BSONElements. These are inferior because they do not support comparing with respect to a collation. They should be deleted, and callers should be ported to use the BSONElement::ComparatorInterface. Specifically, we should do the following:

      • Remove BSONElementCmpWithoutField.
      • Update the BSONElementSet and BSONElementMSet type aliases to use BSONElement::ComparatorInterface.
      • Update BSONObjIteratorSorted to use BSONElement::ComparatorInterface.

            Assignee:
            [DO NOT USE] Backlog - Query Execution
            Reporter:
            David Storch
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              Created:
              Updated: