A sparse index can be considered multikey even if the would-be multikey document generates no keys

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Storage Execution
    • Fully Compatible
    • Storage Execution 2026-09-28, Storage Execution 2026-10-12, Storage Execution 2026-10-26
    • 200
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      Consider a sparse index with key {"a.b": 1}. A document in that index's collection collection like

      {a: [{c:1}]}

      will be considered multikey even though it generates no keys for that index.

            Assignee:
            Gregory Noma
            Reporter:
            Gregory Noma
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              Created:
              Updated: