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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::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 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::Exprdecompress ()
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)

Definition at line 110 of file CardinalityEstimator.h.

111  : NDVEstimator(expr_tuple) {}
NDVEstimator(const std::list< std::shared_ptr< Analyzer::Expr >> &expr_tuple)

Member Function Documentation

size_t Analyzer::LargeNDVEstimator::getBufferSize ( ) const

Reimplemented from Analyzer::NDVEstimator.

Definition at line 27 of file CardinalityEstimator.cpp.

References g_large_ndv_multiplier.

27  {
28  return 1024 * 1024 * g_large_ndv_multiplier;
29 }
size_t g_large_ndv_multiplier

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