Struct QueryExecutionStats 

pub struct QueryExecutionStats {
    pub query_id: String,
    pub total_time_ms: u64,
    pub pattern_stats: Vec<PatternStats>,
    pub result_count: usize,
    pub join_count: usize,
    pub filter_count: usize,
    pub cache_hits: usize,
    pub cache_misses: usize,
}

Aggregated execution statistics for a complete SPARQL query evaluation.

Fields

query_id: String

Unique identifier for the query execution (e.g. UUID or hash string).

total_time_ms: u64

Total wall-clock time for the entire query (milliseconds).

pattern_stats: Vec<PatternStats>

Per-pattern breakdown.

result_count: usize

Number of result rows produced.

join_count: usize

Number of join operations performed.

filter_count: usize

Number of FILTER evaluations performed.

cache_hits: usize

Cache hits encountered during evaluation.

cache_misses: usize

Cache misses encountered during evaluation.

Implementations

impl QueryExecutionStats

pub fn new( query_id: impl Into<String>, total_time_ms: u64, pattern_stats: Vec<PatternStats>, result_count: usize, join_count: usize, filter_count: usize, cache_hits: usize, cache_misses: usize, ) -> Self

Construct a new QueryExecutionStats with the given fields.

pub fn cache_hit_rate(&self) -> f64

Overall cache hit rate [0.0, 1.0] for this query execution.

Trait Implementations

impl Clone for QueryExecutionStats

fn clone(&self) -> QueryExecutionStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryExecutionStats

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

Formats the value using the given formatter.

impl PartialEq for QueryExecutionStats

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