Struct StatementCacheStats 

pub struct StatementCacheStats {
    pub hits: u64,
    pub misses: u64,
    pub entries: usize,
}

A point-in-time snapshot of a connection’s prepared-statement cache.

Obtained via Client::statement_cache_stats. Useful for measuring the cache’s effectiveness (the Config::statement_cache flag is opt-in precisely so these numbers can be gathered before defaulting it on).

Fields

hits: u64

Number of lookups that found a cached handle.

misses: u64

Number of lookups that missed (triggering an sp_prepare).

entries: usize

Number of prepared statements currently cached.

Trait Implementations

impl Clone for StatementCacheStats

fn clone(&self) -> StatementCacheStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StatementCacheStats

impl Debug for StatementCacheStats

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

Formats the value using the given formatter.

impl Eq for StatementCacheStats

impl PartialEq for StatementCacheStats

fn eq(&self, other: &StatementCacheStats) -> 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 StatementCacheStats