Trait DataSource 

pub trait DataSource: Send + Sync {
    // Required methods
    fn schema<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Arc<Schema>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn scan<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<RecordBatch>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

Data source trait.

Required Methods

fn schema<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Arc<Schema>>> + Send + 'async_trait>>

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

Get the schema of the data source.

fn scan<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<RecordBatch>>> + Send + 'async_trait>>

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

Scan the data source.

Implementors

impl DataSource for MemoryDataSource