Trait StatsEvaluator

pub trait StatsEvaluator {
    // Required method
    fn evaluate_stats<'life0, 'async_trait>(
        &'life0 self,
        field_paths: Arc<[FieldPath]>,
        stats: Arc<[Stat]>,
    ) -> Pin<Box<dyn Future<Output = VortexResult<Vec<StatsSet>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

A trait for evaluating field statistics against a LayoutReader.

Implementations should avoid fetching data segments (metadata segments are ok) and instead rely on the statistics that were computed at write time.

Required Methods

fn evaluate_stats<'life0, 'async_trait>( &'life0 self, field_paths: Arc<[FieldPath]>, stats: Arc<[Stat]>, ) -> Pin<Box<dyn Future<Output = VortexResult<Vec<StatsSet>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Implementations on Foreign Types

impl StatsEvaluator for Arc<dyn LayoutReader + 'static>

fn evaluate_stats<'life0, 'async_trait>( &'life0 self, field_paths: Arc<[FieldPath]>, stats: Arc<[Stat]>, ) -> Pin<Box<dyn Future<Output = VortexResult<Vec<StatsSet>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Implementors