duckdb::BFTableFilter Class Reference

Inheritance diagram for duckdb::BFTableFilter:

Collaboration diagram for duckdb::BFTableFilter:

Public Member Functions
	BFTableFilter (BloomFilter &filter_p, const bool filters_null_values_p, const string &key_column_name_p, const LogicalType &key_type_p)
bool	FiltersNullValues () const
LogicalType	GetKeyType () const
string	ToString (const string &column_name) const override
idx_t	Filter (Vector &keys_v, SelectionVector &sel, idx_t &approved_tuple_count, BFTableFilterState &state) const
bool	FilterValue (const Value &value) const
FilterPropagateResult	CheckStatistics (BaseStatistics &stats) const override
	Returns true if the statistics indicate that the segment can contain values that satisfy that filter.
Public Member Functions inherited from duckdb::TableFilter
	TableFilter (TableFilterType filter_type_p)
string	DebugToString () const
template<class TARGET >
TARGET &	Cast ()
template<class TARGET >
const TARGET &	Cast () const

Static Public Attributes
static constexpr auto	TYPE = TableFilterType::BLOOM_FILTER

Private Member Functions
bool	Equals (const TableFilter &other) const override
unique_ptr< TableFilter >	Copy () const override
unique_ptr< Expression >	ToExpression (const Expression &column) const override
void	Serialize (Serializer &serializer) const override

Static Private Member Functions
static void	HashInternal (Vector &keys_v, const SelectionVector &sel, const idx_t approved_count, BFTableFilterState &state)
static unique_ptr< TableFilter >	Deserialize (Deserializer &deserializer)

Private Attributes
BloomFilter &	filter
bool	filters_null_values
string	key_column_name
LogicalType	key_type

Additional Inherited Members
Static Public Member Functions inherited from duckdb::TableFilter
static unique_ptr< TableFilter >	Deserialize (Deserializer &deserializer)
Public Attributes inherited from duckdb::TableFilter
TableFilterType	filter_type

Constructor & Destructor Documentation

BFTableFilter()

duckdb::BFTableFilter::BFTableFilter ( BloomFilter &  filter_p, const bool  filters_null_values_p, const string &  key_column_name_p, const LogicalType &  key_type_p  )

inlineexplicit

        : TableFilter(TYPE), filter(filter_p), filters_null_values(filters_null_values_p),
          key_column_name(key_column_name_p), key_type(key_type_p) {
    }

Member Function Documentation

FiltersNullValues()

bool duckdb::BFTableFilter::FiltersNullValues ( ) const

inline

If the join condition is e.g. "A = B", the bf will filter null values. If the condition is "A is B" the filter will let nulls pass

                                   {
        return filters_null_values;
    }

GetKeyType()

LogicalType duckdb::BFTableFilter::GetKeyType ( ) const

inline

                                   {
        return key_type;
    }

ToString()

string duckdb::BFTableFilter::ToString ( const string &  column_name ) const

overridevirtual

Implements duckdb::TableFilter.

CheckStatistics()

FilterPropagateResult duckdb::BFTableFilter::CheckStatistics ( BaseStatistics &  stats ) const

overridevirtual

Returns true if the statistics indicate that the segment can contain values that satisfy that filter.

Implements duckdb::TableFilter.

Equals()

bool duckdb::BFTableFilter::Equals ( const TableFilter &  other ) const

overrideprivatevirtual

Reimplemented from duckdb::TableFilter.

Copy()

unique_ptr< TableFilter > duckdb::BFTableFilter::Copy ( ) const

overrideprivatevirtual

Implements duckdb::TableFilter.

ToExpression()

unique_ptr< Expression > duckdb::BFTableFilter::ToExpression ( const Expression &  column ) const

overrideprivatevirtual

Implements duckdb::TableFilter.

Serialize()

void duckdb::BFTableFilter::Serialize ( Serializer &  serializer ) const

overrideprivatevirtual

Reimplemented from duckdb::TableFilter.

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

• external/duckdb/duckdb.cpp