Struct HashSide 

pub struct HashSide {
    pub null_keyed: Vec<usize>,
    /* private fields */
}

Right-hand rows indexed by their key bucket.

Fields

null_keyed: Vec<usize>

Right rows whose key contains a NULL. They match nothing, but a RIGHT/FULL join still has to emit them as unmatched, so they cannot simply be dropped.

Implementations

impl HashSide

pub fn build( n: usize, key_of: impl FnMut(usize) -> Result<Option<Vec<HKey>>>, ) -> Result<Self>

Build the probe side. key_of yields one row’s key values, or None when any of them is NULL.

pub fn probe(&self, key: &[HKey]) -> &[usize]

Candidate right-row indices for a left key, in ascending order.

pub fn distinct_keys(&self) -> usize