[−][src]Trait datafusion::execution::relation::Relation
trait for all relations (a relation is essentially just an iterator over rows with a known schema)
Required methods
fn next(&mut self) -> Result<Option<RecordBatch>>
fn schema(&self) -> &Arc<Schema>
get the schema for this relation
Implementors
impl Relation for FilterRelation
[src]
impl Relation for FilterRelation
impl Relation for ProjectRelation
[src]
impl Relation for ProjectRelation
impl Relation for DataSourceRelation
[src]
impl Relation for DataSourceRelation