Struct Lookup 

pub struct Lookup { /* private fields */ }

The result of searching one dictionary for one literal, kept for the life of a query node.

Implementations

impl Lookup

pub fn find(&self, column: &Vector, wanted: &[u8]) -> Option<Result<Found>>

Where wanted sits in column’s dictionary, searched once and remembered.

None means there is nothing to search and the caller should do what it did before: the column is not a dictionary that shares its values, or the values did not arrive with a sorted order, or this was built against a different dictionary.

A failed read is returned rather than remembered, so a caller that retries gets the error again rather than a wrong answer cached from a half finished search.

Trait Implementations

impl Debug for Lookup

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

Formats the value using the given formatter.

impl Default for Lookup

fn default() -> Self

Returns the “default value” for a type.