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Analyzer::NDVEstimator Class Reference

#include <CardinalityEstimator.h>

+ Inheritance diagram for Analyzer::NDVEstimator:
+ Collaboration diagram for Analyzer::NDVEstimator:

Public Member Functions

 NDVEstimator (const std::list< std::shared_ptr< Analyzer::Expr >> &expr_tuple)
 
const std::list
< std::shared_ptr
< Analyzer::Expr > > & 
getArgument () const override
 
size_t getBufferSize () const override
 
std::string getRuntimeFunctionName () const override
 
- Public Member Functions inherited from Analyzer::Estimator
 Estimator ()
 
std::shared_ptr< Analyzer::Exprdeep_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::Exprget_shared_ptr ()
 
const SQLTypeInfoget_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 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 (bool(*f)(const Expr *), std::list< const Expr * > &expr_list) const
 
std::shared_ptr< Analyzer::Exprdecompress ()
 
virtual void get_domain (DomainSet &domain_set) const
 

Private Attributes

const std::list
< std::shared_ptr
< Analyzer::Expr > > 
expr_tuple_
 

Additional Inherited Members

- Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo type_info
 
bool contains_agg
 

Detailed Description

Definition at line 85 of file CardinalityEstimator.h.

Constructor & Destructor Documentation

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

Definition at line 87 of file CardinalityEstimator.h.

88  : expr_tuple_(expr_tuple) {}
const std::list< std::shared_ptr< Analyzer::Expr > > expr_tuple_

Member Function Documentation

const std::list<std::shared_ptr<Analyzer::Expr> >& Analyzer::NDVEstimator::getArgument ( ) const
inlineoverridevirtual

Implements Analyzer::Estimator.

Definition at line 90 of file CardinalityEstimator.h.

References expr_tuple_.

90  {
91  return expr_tuple_;
92  }
const std::list< std::shared_ptr< Analyzer::Expr > > expr_tuple_
size_t Analyzer::NDVEstimator::getBufferSize ( ) const
inlineoverridevirtual

Implements Analyzer::Estimator.

Definition at line 94 of file CardinalityEstimator.h.

94 { return 1024 * 1024; }
std::string Analyzer::NDVEstimator::getRuntimeFunctionName ( ) const
inlineoverridevirtual

Implements Analyzer::Estimator.

Definition at line 96 of file CardinalityEstimator.h.

96  {
97  return "linear_probabilistic_count";
98  }

Member Data Documentation

const std::list<std::shared_ptr<Analyzer::Expr> > Analyzer::NDVEstimator::expr_tuple_
private

Definition at line 101 of file CardinalityEstimator.h.

Referenced by getArgument().


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