Enum PhysicalEncoding 

#[repr(u8)]
pub enum PhysicalEncoding {
    None = 0,
    FastPFOR = 1,
    VarInt = 2,
    Alp = 3,
}

Physical encoding used for a column, as stored in the tile

Variants

None = 0

FastPFOR = 1

Preferred, tends to produce the best compression ratio and decoding performance. But currently limited to 32-bit integer.

VarInt = 2

Can produce better results in combination with a heavyweight compression scheme like Gzip. Simple compression scheme where the encoding is easier to implement compared to FastPfor.

Alp = 3

Adaptive Lossless floating-Point Compression

Implementations

impl PhysicalEncoding

pub fn parse(value: u8) -> MltResult<Self>

Trait Implementations

impl Clone for PhysicalEncoding

fn clone(&self) -> PhysicalEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PhysicalEncoding

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

Formats the value using the given formatter.

impl Hash for PhysicalEncoding

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PhysicalEncoding

fn cmp(&self, other: &PhysicalEncoding) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for PhysicalEncoding

fn eq(&self, other: &PhysicalEncoding) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for PhysicalEncoding

fn partial_cmp(&self, other: &PhysicalEncoding) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<u8> for PhysicalEncoding

type Error = TryFromPrimitiveError<PhysicalEncoding>

The type returned in the event of a conversion error.

fn try_from(number: u8) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for PhysicalEncoding

const NAME: &'static str = "PhysicalEncoding"

type Primitive = u8

type Error = TryFromPrimitiveError<PhysicalEncoding>

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Copy for PhysicalEncoding

impl Eq for PhysicalEncoding

impl StructuralPartialEq for PhysicalEncoding