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Operator

hirn_engine::operators

Trait Operator 

Source 
pub trait Operator: Send + Sync {
    // Required method
    fn execute<'life0, 'life1, 'async_trait>(
        &'life0 self,
        input: Vec<RecordBatch>,
        ctx: &'life1 OpContext,
    ) -> Pin<Box<dyn Future<Output = HirnResult<Vec<RecordBatch>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}
Expand description

A composable query-plan stage that transforms RecordBatch streams.

Required Methods§

Source

fn execute<'life0, 'life1, 'async_trait>( &'life0 self, input: Vec<RecordBatch>, ctx: &'life1 OpContext, ) -> Pin<Box<dyn Future<Output = HirnResult<Vec<RecordBatch>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Execute this operator.

  • input — batches from the previous stage (empty for source operators).
  • ctx — shared execution context (store, graph, principal).

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§