Struct PlanCacheStats 

pub struct PlanCacheStats {
    pub hits: u64,
    pub misses: u64,
    pub stale_invalidations: u64,
    pub capacity_evictions: u64,
}

Counters for PlanCache lookup and eviction behavior.

Fields

hits: u64

Successful source + schema-version lookups.

misses: u64

Source keys not present in the cache.

stale_invalidations: u64

Entries found but invalidated because their schema version was stale.

capacity_evictions: u64

Entries evicted by LRU capacity pressure.

Trait Implementations

impl Clone for PlanCacheStats

fn clone(&self) -> PlanCacheStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PlanCacheStats

impl Debug for PlanCacheStats

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

Formats the value using the given formatter.

impl Default for PlanCacheStats

fn default() -> PlanCacheStats

Returns the “default value” for a type.

impl Eq for PlanCacheStats

impl PartialEq for PlanCacheStats

fn eq(&self, other: &PlanCacheStats) -> 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 StructuralPartialEq for PlanCacheStats