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Type:
Task
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Resolution: Unresolved
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Priority:
Major - P3
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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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We have code here that assigns a higher cost to longer indexes even if the fields in those indexes carry bounds (which means they're actually doing work that save us from evaluating within the residual predicate). We should experiment with only assigning that incremental field cost if the field has no bounds.
- related to
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SERVER-132020 Index choice regression when using pure CBR
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- Closed
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SERVER-125783 Preserve prefix-selectivity ordering in CardinalityEstimator::clampZeroEstimates
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- Needs Scheduling
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SERVER-114546 Approximate the number of filter leaf evaluations
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- Needs Scheduling
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