Struct OptimizationStats 

pub struct OptimizationStats {
    pub total_optimizations: usize,
    pub goals_reordered: usize,
    pub index_selections: usize,
    pub memoization_hits: usize,
    pub memoization_misses: usize,
}

Statistics for query optimization

Fields

total_optimizations: usize

Total number of optimizations performed

goals_reordered: usize

Total goals reordered

index_selections: usize

Number of index selections made

memoization_hits: usize

Number of memoization hits

memoization_misses: usize

Number of memoization misses

Implementations

impl OptimizationStats

pub fn new() -> Self

Create new statistics

pub fn memoization_hit_rate(&self) -> f64

Get memoization hit rate

pub fn summary(&self) -> String

Get summary string

Trait Implementations

impl Clone for OptimizationStats

fn clone(&self) -> OptimizationStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptimizationStats

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

Formats the value using the given formatter.

impl Default for OptimizationStats

fn default() -> OptimizationStats

Returns the “default value” for a type.