duckdb::NumericStats Struct Reference

Static Public Member Functions
static DUCKDB_API BaseStatistics	CreateUnknown (LogicalType type)
	Unknown statistics - i.e. "has_min" is false, "has_max" is false.
static DUCKDB_API BaseStatistics	CreateEmpty (LogicalType type)
	Empty statistics - i.e. "min = MaxValue<type>, max = MinValue<type>".
static DUCKDB_API bool	IsConstant (const BaseStatistics &stats)
	Returns true if the stats has a constant value.
static DUCKDB_API bool	HasMinMax (const BaseStatistics &stats)
	Returns true if the stats has both a min and max value defined.
static DUCKDB_API bool	HasMin (const BaseStatistics &stats)
	Returns true if the stats has a min value defined.
static DUCKDB_API bool	HasMax (const BaseStatistics &stats)
	Returns true if the stats has a max value defined.
static DUCKDB_API Value	Min (const BaseStatistics &stats)
	Returns the min value - throws an exception if there is no min value.
static DUCKDB_API Value	Max (const BaseStatistics &stats)
	Returns the max value - throws an exception if there is no max value.
static DUCKDB_API void	SetMin (BaseStatistics &stats, const Value &val)
	Sets the min value of the statistics.
static DUCKDB_API void	SetMax (BaseStatistics &stats, const Value &val)
	Sets the max value of the statistics.
template<class T >
static void	SetMax (BaseStatistics &stats, T val)
template<class T >
static void	SetMin (BaseStatistics &stats, T val)
static DUCKDB_API FilterPropagateResult	CheckZonemap (const BaseStatistics &stats, ExpressionType comparison_type, array_ptr< const Value > constants)
	Check whether or not a given comparison with a constant could possibly be satisfied by rows given the statistics.
static DUCKDB_API void	Merge (BaseStatistics &stats, const BaseStatistics &other_p)
static DUCKDB_API void	Serialize (const BaseStatistics &stats, Serializer &serializer)
static DUCKDB_API void	Deserialize (Deserializer &deserializer, BaseStatistics &stats)
static DUCKDB_API string	ToString (const BaseStatistics &stats)
template<class T >
static void	UpdateValue (T new_value, T &min, T &max)
template<class T >
static void	Update (NumericStatsData &nstats, T new_value)
static void	Verify (const BaseStatistics &stats, Vector &vector, const SelectionVector &sel, idx_t count)
template<class T >
static T	GetMin (const BaseStatistics &stats)
template<class T >
static T	GetMax (const BaseStatistics &stats)
template<class T >
static T	GetMinUnsafe (const BaseStatistics &stats)
template<class T >
static T	GetMaxUnsafe (const BaseStatistics &stats)

Static Private Member Functions
static NumericStatsData &	GetDataUnsafe (BaseStatistics &stats)
static const NumericStatsData &	GetDataUnsafe (const BaseStatistics &stats)
static Value	MinOrNull (const BaseStatistics &stats)
static Value	MaxOrNull (const BaseStatistics &stats)
template<class T >
static void	TemplatedVerify (const BaseStatistics &stats, Vector &vector, const SelectionVector &sel, idx_t count)

Member Function Documentation

SetMax()

template<class T >

static void duckdb::NumericStats::SetMax ( BaseStatistics &  stats, T  val  )

inlinestatic

                                                     {
        auto &nstats = GetDataUnsafe(stats);
        nstats.has_max = true;
        nstats.max.GetReferenceUnsafe<T>() = val;
    }

SetMin()

template<class T >

static void duckdb::NumericStats::SetMin ( BaseStatistics &  stats, T  val  )

inlinestatic

                                                     {
        auto &nstats = GetDataUnsafe(stats);
        nstats.has_min = true;
        nstats.min.GetReferenceUnsafe<T>() = val;
    }

UpdateValue()

template<class T >

static void duckdb::NumericStats::UpdateValue ( T  new_value, T &  min, T &  max  )

inlinestatic

                                                                {
        min = LessThan::Operation(new_value, min) ? new_value : min;
        max = GreaterThan::Operation(new_value, max) ? new_value : max;
    }

Update()

template<class T >

static void duckdb::NumericStats::Update ( NumericStatsData &  nstats, T  new_value  )

inlinestatic

                                                                     {
        UpdateValue<T>(new_value, nstats.min.GetReferenceUnsafe<T>(), nstats.max.GetReferenceUnsafe<T>());
    }

GetMin()

template<class T >

static T duckdb::NumericStats::GetMin ( const BaseStatistics &  stats )

inlinestatic

                                                 {
        return NumericStats::Min(stats).GetValueUnsafe<T>();
    }

GetMax()

template<class T >

static T duckdb::NumericStats::GetMax ( const BaseStatistics &  stats )

inlinestatic

                                                 {
        return NumericStats::Max(stats).GetValueUnsafe<T>();
    }

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

• external/duckdb/duckdb.hpp