Struct IvfFlatConfig 

pub struct IvfFlatConfig {
    pub lists: usize,
}

Configuration for IVFFlat indexes.

IVFFlat divides vectors into lists number of clusters during a training phase. At query time, probes clusters are searched.

Tuning Guidelines

• lists: Start with rows / 1000 for up to 1M rows, sqrt(rows) for more.
• probes: Start with sqrt(lists) and increase for better recall.

Fields

lists: usize

Number of inverted lists (clusters).

More lists = faster search but potentially lower recall. Recommended: rows / 1000 for up to 1M rows.

Implementations

impl IvfFlatConfig

pub fn new(lists: usize) -> Self

Create a new IVFFlat config with the given number of lists.

pub fn for_row_count(rows: usize) -> Self

Create a config with the recommended number of lists for a given row count.

Trait Implementations

impl Clone for IvfFlatConfig

fn clone(&self) -> IvfFlatConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IvfFlatConfig

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

Formats the value using the given formatter.

impl Default for IvfFlatConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IvfFlatConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for IvfFlatConfig

fn eq(&self, other: &IvfFlatConfig) -> 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 Serialize for IvfFlatConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for IvfFlatConfig

impl StructuralPartialEq for IvfFlatConfig