Struct ConstantLayout 

pub struct ConstantLayout {
    pub layers: Vec<i32>,
    pub inline_value: Option<Bytes>,
    pub rep_compression: Option<CompressiveEncoding>,
    pub def_compression: Option<CompressiveEncoding>,
    pub num_rep_values: u64,
    pub num_def_values: u64,
}

Scalar and level information needed by the constant engine.

Fields

layers: Vec<i32>

Inner-most to outer-most repetition/definition interpretations.

inline_value: Option<Bytes>

Encoded scalar; absent for pages without materialized values.

rep_compression: Option<CompressiveEncoding>

Repetition stream encoding; absent when no repetition buffer exists.

def_compression: Option<CompressiveEncoding>

Definition stream encoding; absent when no definition buffer exists.

num_rep_values: u64

Number of entries in the repetition stream.

num_def_values: u64

Number of entries in the definition stream.

Trait Implementations

impl Clone for ConstantLayout

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstantLayout

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

Formats the value using the given formatter.

impl Default for ConstantLayout

fn default() -> Self

Returns the “default value” for a type.

impl From<ConstantLayout> for ConstantLayout

fn from(value: ConstantLayout) -> Self

Converts to this type from the input type.

impl PartialEq for ConstantLayout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ConstantLayout

impl TryFrom<ConstantLayout> for ConstantLayout

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: ConstantLayout) -> Result<Self>

Performs the conversion.