Struct IvfflatParams 

pub struct IvfflatParams {
    pub lists: usize,
    pub probes: usize,
}

IVFFlat 索引参数

lists 参数控制聚类中心数量，通常建议：

• 数据量 < 100 万：lists = sqrt(rows)
• 数据量 >= 100 万：lists = rows / 1000

Fields

lists: usize

聚类中心数量（lists）

probes: usize

查询时探测的聚类数量（probes）

Implementations

impl IvfflatParams

pub fn new(lists: usize, probes: usize) -> Self

创建 IVFFlat 参数

pub fn recommended_for_rows(rows: usize) -> Self

根据数据量自动推荐 lists 参数

pub fn to_sql_options(&self) -> String

生成 SQL 选项子句（WITH (lists = N)）

Trait Implementations

impl Clone for IvfflatParams

fn clone(&self) -> IvfflatParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IvfflatParams

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

Formats the value using the given formatter.

impl Default for IvfflatParams

fn default() -> Self

Returns the “default value” for a type.