Interface FedXCostModel
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- All Known Implementing Classes:
DefaultFedXCostModel
public interface FedXCostModelInterface for a cost model used inStatementGroupAndJoinOptimizer.- Author:
- Andreas Schwarte
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description doubleestimateCost(TupleExpr tupleExpr, Set<String> joinVars)Return the estimated cost for the givenTupleExpr
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