m::TrainedCostFunction Struct Reference

#include <TrainedCostFunction.hpp>

Inheritance diagram for m::TrainedCostFunction:

Collaboration diagram for m::TrainedCostFunction:

Public Types
using	Subproblem = SmallBitset

Public Member Functions
	TrainedCostFunction (std::unique_ptr< CostModel > filter_model, std::unique_ptr< CostModel > join_model, std::unique_ptr< CostModel > grouping_model)
template<typename PlanTable >
double	operator() (calculate_filter_cost_tag, PlanTable &&PT, const QueryGraph &G, const CardinalityEstimator &CE, Subproblem sub, const cnf::CNF &condition) const
template<typename PlanTable >
double	operator() (calculate_join_cost_tag, PlanTable &&PT, const QueryGraph &G, const CardinalityEstimator &CE, Subproblem left, Subproblem right, const cnf::CNF &condition) const
template<typename PlanTable >
double	operator() (calculate_grouping_cost_tag, PlanTable &&PT, const QueryGraph &G, const CardinalityEstimator &CE, Subproblem sub, const std::vector< const ast::Expr * > &group_by) const
template<typename PlanTable >
double	calculate_filter_cost (const QueryGraph &G, const PlanTable &PT, const CardinalityEstimator &CE, Subproblem sub, const cnf::CNF &condition) const
	Returns the total cost of performing a Filter operation.
template<typename PlanTable >
double	calculate_join_cost (const QueryGraph &G, const PlanTable &PT, const CardinalityEstimator &CE, Subproblem left, Subproblem right, const cnf::CNF &condition) const
	Returns the total cost of performing a Join operation.
template<typename PlanTable >
double	calculate_grouping_cost (const QueryGraph &G, const PlanTable &PT, const CardinalityEstimator &CE, Subproblem sub, const std::vector< const ast::Expr * > &group_by) const
	Returns the total cost of performing a Grouping operation.

Private Attributes
std::unique_ptr< CostModel >	filter_model_
std::unique_ptr< CostModel >	join_model_
std::unique_ptr< CostModel >	grouping_model_

Detailed Description

Definition at line 9 of file TrainedCostFunction.hpp.

Member Typedef Documentation

Subproblem

using m::CostFunction::Subproblem = SmallBitset

inherited

Definition at line 41 of file CostFunction.hpp.

Constructor & Destructor Documentation

TrainedCostFunction()

m::TrainedCostFunction::TrainedCostFunction ( std::unique_ptr< CostModel >  filter_model, std::unique_ptr< CostModel >  join_model, std::unique_ptr< CostModel >  grouping_model  )

inline

Definition at line 17 of file TrainedCostFunction.hpp.

Member Function Documentation

calculate_filter_cost()

template<typename PlanTable >

double m::CostFunction::calculate_filter_cost ( const QueryGraph &  G, const PlanTable &  PT, const CardinalityEstimator &  CE, Subproblem  sub, const cnf::CNF &  condition  ) const

inlineinherited

Returns the total cost of performing a Filter operation.

Definition at line 53 of file CostFunction.hpp.

calculate_grouping_cost()

template<typename PlanTable >

double m::CostFunction::calculate_grouping_cost ( const QueryGraph &  G, const PlanTable &  PT, const CardinalityEstimator &  CE, Subproblem  sub, const std::vector< const ast::Expr * > &  group_by  ) const

inlineinherited

Returns the total cost of performing a Grouping operation.

Definition at line 70 of file CostFunction.hpp.

calculate_join_cost()

template<typename PlanTable >

double m::CostFunction::calculate_join_cost ( const QueryGraph &  G, const PlanTable &  PT, const CardinalityEstimator &  CE, Subproblem  left, Subproblem  right, const cnf::CNF &  condition  ) const

inlineinherited

Returns the total cost of performing a Join operation.

Definition at line 61 of file CostFunction.hpp.

Referenced by m::pe::hs::goo_path_completion(), m::pe::hs::heuristics::bottomup_lookahead_cheapest< PlanTable, State >::operator()(), m::pe::hs::heuristics::GOO< PlanTable, State, BottomUp >::operator()(), m::pe::hs::expansions::BottomUpComplete::operator()(), and m::PlanTableBase< Actual >::update().

operator()() [1/3]

template<typename PlanTable >

double TrainedCostFunction::operator()	(	calculate_filter_cost_tag	,
		PlanTable &&	PT,
		const QueryGraph &	G,
		const CardinalityEstimator &	CE,
		Subproblem	sub,
		const cnf::CNF &	condition
	)		const

Definition at line 12 of file TrainedCostFunction.cpp.

References m::CardinalityEstimator::estimate_filter(), filter_model_, M_insist, and m::CardinalityEstimator::predict_cardinality().

operator()() [2/3]

template<typename PlanTable >

double TrainedCostFunction::operator()	(	calculate_grouping_cost_tag	,
		PlanTable &&	PT,
		const QueryGraph &	G,
		const CardinalityEstimator &	CE,
		Subproblem	sub,
		const std::vector< const ast::Expr * > &	group_by
	)		const

Definition at line 57 of file TrainedCostFunction.cpp.

References grouping_model_, m::CardinalityEstimator::predict_cardinality(), and m::CardinalityEstimator::predict_number_distinct_values().

operator()() [3/3]

template<typename PlanTable >

double TrainedCostFunction::operator()	(	calculate_join_cost_tag	,
		PlanTable &&	PT,
		const QueryGraph &	G,
		const CardinalityEstimator &	CE,
		Subproblem	left,
		Subproblem	right,
		const cnf::CNF &	condition
	)		const

Definition at line 30 of file TrainedCostFunction.cpp.

References m::and, m::CardinalityEstimator::estimate_join(), join_model_, M_insist, m::CardinalityEstimator::predict_cardinality(), and m::CardinalityEstimator::predict_number_distinct_values().

Field Documentation

filter_model_

std::unique_ptr<CostModel> m::TrainedCostFunction::filter_model_

private

Definition at line 12 of file TrainedCostFunction.hpp.

Referenced by operator()().

grouping_model_

std::unique_ptr<CostModel> m::TrainedCostFunction::grouping_model_

private

Definition at line 14 of file TrainedCostFunction.hpp.

Referenced by operator()().

join_model_

std::unique_ptr<CostModel> m::TrainedCostFunction::join_model_

private

Definition at line 13 of file TrainedCostFunction.hpp.

Referenced by operator()().

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The documentation for this struct was generated from the following files:

• include/mutable/catalog/TrainedCostFunction.hpp
• src/catalog/TrainedCostFunction.cpp