Struct PrimitiveStats

pub struct PrimitiveStats<T> {
    pub lower: T,
    pub upper: T,
}

Statistics about a primitive non-optional column.

Fields

lower: T

An inclusive lower bound on the data contained in the column.

This will often be a tight bound, but it’s not guaranteed. Persist reserves the right to (for example) invent smaller bounds for long byte strings. SUBTLE: This means that this exact value may not be present in the column.

Similarly, if the column is empty, this will contain T: Default. Emptiness will be indicated in statistics higher up (i.e. crate::stats::StructStats).

upper: T

Same as Self::lower but an (also inclusive) upper bound.

Trait Implementations

impl<T: Clone> Clone for PrimitiveStats<T>

fn clone(&self) -> PrimitiveStats<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ColumnStats for PrimitiveStats<String>

type Ref<'a> = &'a str

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<bool>

type Ref<'a> = bool

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<f32>

type Ref<'a> = f32

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<f64>

type Ref<'a> = f64

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<i16>

type Ref<'a> = i16

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<i32>

type Ref<'a> = i32

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<i64>

type Ref<'a> = i64

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<i8>

type Ref<'a> = i8

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<u16>

type Ref<'a> = u16

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<u32>

type Ref<'a> = u32

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<u64>

type Ref<'a> = u64

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnStats for PrimitiveStats<u8>

type Ref<'a> = u8

Type returned as the stat bounds.

fn lower<'a>(&'a self) -> Option<Self::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known.

fn upper<'a>(&'a self) -> Option<Self::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.

fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.

impl ColumnarStatsBuilder<&[u8]> for PrimitiveStats<Vec<u8>>

type ArrowColumn = GenericByteArray<GenericBinaryType<i32>>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<&str> for PrimitiveStats<String>

type ArrowColumn = GenericByteArray<GenericStringType<i32>>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<bool> for PrimitiveStats<bool>

type ArrowColumn = BooleanArray

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<f32> for PrimitiveStats<f32>

type ArrowColumn = PrimitiveArray<Float32Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<f64> for PrimitiveStats<f64>

type ArrowColumn = PrimitiveArray<Float64Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<i16> for PrimitiveStats<i16>

type ArrowColumn = PrimitiveArray<Int16Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<i32> for PrimitiveStats<i32>

type ArrowColumn = PrimitiveArray<Int32Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<i64> for PrimitiveStats<i64>

type ArrowColumn = PrimitiveArray<Int64Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<i8> for PrimitiveStats<i8>

type ArrowColumn = PrimitiveArray<Int8Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<u16> for PrimitiveStats<u16>

type ArrowColumn = PrimitiveArray<UInt16Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<u32> for PrimitiveStats<u32>

type ArrowColumn = PrimitiveArray<UInt32Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<u64> for PrimitiveStats<u64>

type ArrowColumn = PrimitiveArray<UInt64Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl ColumnarStatsBuilder<u8> for PrimitiveStats<u8>

type ArrowColumn = PrimitiveArray<UInt8Type>

Type of arrow column these statistics can be derived from.

fn from_column(col: &Self::ArrowColumn) -> Self

where Self: Sized,

Derive statistics from a column of data.

impl<T: Serialize> Debug for PrimitiveStats<T>

where PrimitiveStats<T>: RustType<ProtoPrimitiveStats>,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Debug for PrimitiveStats<Vec<u8>>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Serialize> DynStats for PrimitiveStats<T>

where PrimitiveStats<T>: RustType<ProtoPrimitiveStats> + Into<PrimitiveStatsVariants> + Clone + Send + Sync + 'static,

fn debug_json(&self) -> Value

Formats these statistics for use in INSPECT SHARD and debugging.

fn into_columnar_stats(self) -> ColumnarStats

Return self as ColumnarStats.

fn type_name(&self) -> &'static str

Returns the name of the erased type for use in error messages.

impl DynStats for PrimitiveStats<Vec<u8>>

fn debug_json(&self) -> Value

Formats these statistics for use in INSPECT SHARD and debugging.

fn into_columnar_stats(self) -> ColumnarStats

Return self as ColumnarStats.

fn type_name(&self) -> &'static str

Returns the name of the erased type for use in error messages.

impl From<PrimitiveStats<String>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<String>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<Vec<u8>>> for ColumnStatKinds

fn from(value: PrimitiveStats<Vec<u8>>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<bool>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<bool>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<f32>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<f32>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<f64>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<f64>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<i16>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<i16>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<i32>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<i32>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<i64>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<i64>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<i8>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<i8>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<u16>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<u16>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<u32>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<u32>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<u64>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<u64>) -> Self

Converts to this type from the input type.

impl From<PrimitiveStats<u8>> for PrimitiveStatsVariants

fn from(value: PrimitiveStats<u8>) -> Self

Converts to this type from the input type.

impl RustType<ProtoPrimitiveBytesStats> for PrimitiveStats<Vec<u8>>

fn into_proto(&self) -> ProtoPrimitiveBytesStats

Convert a Self into a Proto value.

fn from_proto( proto: ProtoPrimitiveBytesStats, ) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<String>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<bool>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<f32>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<f64>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<i16>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<i32>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<i64>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<i8>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<u16>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<u32>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<u64>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl RustType<ProtoPrimitiveStats> for PrimitiveStats<u8>

fn into_proto(&self) -> ProtoPrimitiveStats

Convert a Self into a Proto value.

fn from_proto(proto: ProtoPrimitiveStats) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl<T: Copy> Copy for PrimitiveStats<T>