Analyzer::LargeNDVEstimator Class Reference

#include <CardinalityEstimator.h>

Inheritance diagram for Analyzer::LargeNDVEstimator:

Collaboration diagram for Analyzer::LargeNDVEstimator:

Public Member Functions
	LargeNDVEstimator (const std::list< std::shared_ptr< Analyzer::Expr >> &expr_tuple)
size_t	getBufferSize () const final
Public Member Functions inherited from Analyzer::NDVEstimator
	NDVEstimator (const std::list< std::shared_ptr< Analyzer::Expr >> &expr_tuple)
const std::list < std::shared_ptr < Analyzer::Expr > > &	getArgument () const override
std::string	getRuntimeFunctionName () const override
Public Member Functions inherited from Analyzer::Estimator
	Estimator ()
std::shared_ptr< Analyzer::Expr >	deep_copy () const override
bool	operator== (const Expr &rhs) const override
std::string	toString () const override
Public Member Functions inherited from Analyzer::Expr
	Expr (SQLTypes t, bool notnull)
	Expr (SQLTypes t, int d, bool notnull)
	Expr (SQLTypes t, int d, int s, bool notnull)
	Expr (const SQLTypeInfo &ti, bool has_agg=false)
virtual	~Expr ()
std::shared_ptr< Analyzer::Expr >	get_shared_ptr ()
const SQLTypeInfo &	get_type_info () const
void	set_type_info (const SQLTypeInfo &ti)
bool	get_contains_agg () const
void	set_contains_agg (bool a)
virtual std::shared_ptr < Analyzer::Expr >	add_cast (const SQLTypeInfo &new_type_info)
virtual void	check_group_by (const std::list< std::shared_ptr< Analyzer::Expr >> &groupby) const
virtual std::shared_ptr < Analyzer::Expr >	normalize_simple_predicate (int &rte_idx) const
virtual void	group_predicates (std::list< const Expr * > &scan_predicates, std::list< const Expr * > &join_predicates, std::list< const Expr * > &const_predicates) const
virtual void	collect_rte_idx (std::set< int > &rte_idx_set) const
virtual void	collect_column_var (std::set< const ColumnVar *, bool(*)(const ColumnVar *, const ColumnVar *)> &colvar_set, bool include_agg) const
virtual size_t	get_num_column_vars (const bool include_agg) const
virtual std::shared_ptr < Analyzer::Expr >	rewrite_with_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const
virtual std::shared_ptr < Analyzer::Expr >	rewrite_with_child_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const
virtual std::shared_ptr < Analyzer::Expr >	rewrite_agg_to_var (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const
virtual void	print () const
virtual void	add_unique (std::list< const Expr * > &expr_list) const
virtual void	find_expr (std::function< bool(const Expr *)> f, std::list< const Expr * > &expr_list) const
std::shared_ptr< Analyzer::Expr >	decompress ()
virtual void	get_domain (DomainSet &domain_set) const

Additional Inherited Members
Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo	type_info
bool	contains_agg

Detailed Description

Definition at line 108 of file CardinalityEstimator.h.

Constructor & Destructor Documentation

Analyzer::LargeNDVEstimator::LargeNDVEstimator ( const std::list< std::shared_ptr< Analyzer::Expr >> &  expr_tuple )

inline

Definition at line 110 of file CardinalityEstimator.h.

      : NDVEstimator(expr_tuple) {}

Member Function Documentation

size_t Analyzer::LargeNDVEstimator::getBufferSize ( ) const

finalvirtual

Reimplemented from Analyzer::NDVEstimator.

Definition at line 27 of file CardinalityEstimator.cpp.

References g_large_ndv_multiplier.

                                              {
  return 1024 * 1024 * g_large_ndv_multiplier;
}

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

• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/CardinalityEstimator.h
• /home/jenkins-slave/workspace/core-os-doxygen/QueryEngine/CardinalityEstimator.cpp