Struct PlanCacheConfig 

pub struct PlanCacheConfig {
    pub capacity: usize,
    pub ttl: Duration,
    pub include_param_types: bool,
}

查询计划缓存配置（v7.3.0）

Fields

capacity: usize

最大缓存条目数

ttl: Duration

TTL（默认 5 分钟）

include_param_types: bool

指纹是否纳入参数类型

Implementations

impl PlanCacheConfig

pub fn new() -> Self

创建默认配置

pub fn with_capacity(self, capacity: usize) -> Self

设置容量

pub fn with_ttl(self, ttl: Duration) -> Self

设置 TTL

pub fn with_param_types(self, include: bool) -> Self

设置是否纳入参数类型

Trait Implementations

impl Clone for PlanCacheConfig

fn clone(&self) -> PlanCacheConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanCacheConfig

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

Formats the value using the given formatter.

impl Default for PlanCacheConfig

fn default() -> Self

Returns the “default value” for a type.