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Type:
Improvement
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Resolution: Unresolved
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Priority:
Critical - P2
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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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From reading this code, it appears CBR will rank plans even if a single solution fast path or a count fast-path is available. This means single solution queries will be significantly slower in CBR compared to our default settings.
These checks could be performed immediately after QueryPlanner::plan is called, similar to how it works when multiplanning is enabled.
For explain queries, this might make sense. But for non-explain queries it may be a performance concern
- is related to
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SERVER-118468 Explains for fast count queries crashes cbr for no mp results
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- Closed
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SERVER-117209 Expose CBR related query knobs for IFR
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- Closed
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- Needs Scheduling
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