Interface JoinFactorCostModel
public interface JoinFactorCostModel
Optional SPI for join-factor work estimates under a concrete prefix binding set.
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Nested Class Summary
Nested ClassesModifier and TypeInterfaceDescriptionstatic final classstatic final class -
Method Summary
Modifier and TypeMethodDescriptionestimateFactorCost(TupleExpr factor, Set<String> currentlyBoundVars) estimateFactorCost(TupleExpr factor, JoinFactorCostModel.CostContext context)
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Method Details
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estimateFactorCost
Optional<JoinFactorCostModel.FactorCostEstimate> estimateFactorCost(TupleExpr factor, Set<String> currentlyBoundVars) -
estimateFactorCost
default Optional<JoinFactorCostModel.FactorCostEstimate> estimateFactorCost(TupleExpr factor, JoinFactorCostModel.CostContext context)
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