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QueryMetricsSnapshot

featherdb_query

Struct QueryMetricsSnapshot 

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pub struct QueryMetricsSnapshot {
    pub queries_executed: u64,
    pub total_parse_time_us: u64,
    pub total_plan_time_us: u64,
    pub total_exec_time_us: u64,
    pub rows_scanned: u64,
    pub rows_returned: u64,
}
Expand description

Snapshot of query metrics at a point in time

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§queries_executed: u64

Total number of queries executed

§total_parse_time_us: u64

Total parse time in microseconds

§total_plan_time_us: u64

Total planning time in microseconds

§total_exec_time_us: u64

Total execution time in microseconds

§rows_scanned: u64

Total rows scanned during execution

§rows_returned: u64

Total rows returned to client

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impl QueryMetricsSnapshot

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pub fn avg_parse_time_us(&self) -> f64

Get average parse time in microseconds

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pub fn avg_plan_time_us(&self) -> f64

Get average planning time in microseconds

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pub fn avg_exec_time_us(&self) -> f64

Get average execution time in microseconds

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pub fn avg_total_time_us(&self) -> f64

Get average total query time (parse + plan + exec) in microseconds

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pub fn avg_rows_scanned(&self) -> f64

Get average rows scanned per query

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pub fn avg_rows_returned(&self) -> f64

Get average rows returned per query

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pub fn selectivity_ratio(&self) -> f64

Get selectivity ratio (rows returned / rows scanned)

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pub fn total_query_time_us(&self) -> u64

Get total query time (parse + plan + exec) in microseconds

Trait Implementations§

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impl Clone for QueryMetricsSnapshot

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fn clone(&self) -> QueryMetricsSnapshot

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for QueryMetricsSnapshot

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

Formats the value using the given formatter. Read more
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impl PartialEq for QueryMetricsSnapshot

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fn eq(&self, other: &QueryMetricsSnapshot) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for QueryMetricsSnapshot

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impl Eq for QueryMetricsSnapshot

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impl StructuralPartialEq for QueryMetricsSnapshot

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