Struct polars_core::hashing::IdxHash

pub struct IdxHash {
    pub idx: IdxSize,
    pub hash: u64,
}

Contains an idx of a row in a DataFrame and the precomputed hash of that row. That hash still needs to be used to create another hash to be able to resize hashmaps without accidental quadratic behavior. So do not use an Identity function!

Fields

idx: IdxSize

hash: u64

Trait Implementations

impl Debug for IdxHash

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

Formats the value using the given formatter.

impl Hash for IdxHash

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.