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Type:
Task
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Query Optimization
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QO 2024-12-23, QO 2025-01-06, QO 2025-01-20, QO 2025-02-03
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3
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Currently CBR doesn't take into account multi-key metadata when estimating query plans cardinality. This may result in incorrect estimates when the dataset contains arrays. If there is no multi-key metadata, CBR should assume that fields referenced in estimated predicates are multi-key.
Currently multi-key metadata is stored in indexes, however when adding multi-key metadata to CBR, this task should decouple this meta-data from indexes.
- is related to
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SERVER-99026 histogramCE: "encountered interval which is unestimatable" with $exists: false over array, index
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- Needs Scheduling
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- related to
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- Needs Scheduling
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- Closed
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