Trait RemoteQueryHandler 

pub trait RemoteQueryHandler:
    Send
    + Sync
    + 'static {
    // Required method
    fn remote_scan<'life0, 'life1, 'async_trait>(
        &'life0 self,
        table_name: &'life1 str,
        projection: Option<Vec<usize>>,
        filter_sql: Option<String>,
    ) -> Pin<Box<dyn Future<Output = Result<RecordBatch, String>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}

Node-local provider of table / materialized-view snapshots for remote scans.

Required Methods

fn remote_scan<'life0, 'life1, 'async_trait>( &'life0 self, table_name: &'life1 str, projection: Option<Vec<usize>>, filter_sql: Option<String>, ) -> Pin<Box<dyn Future<Output = Result<RecordBatch, String>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

This node’s locally-held rows for table_name, optionally projected and optionally filtered by filter_sql before serialization.

Errors

Unknown table or invalid projection. A filter_sql that fails to compile is skipped (the coordinator re-applies it), not an error.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors