Method scan

datafusion/functions-table/src/generate_series.rs:480–497

(
        &self,
        state: &dyn Session,
        projection: Option<&Vec<usize>>,
        _filters: &[Expr],
        _limit: Option<usize>,
    )

    }

    async fn scan(
        &self,
        state: &dyn Session,
        projection: Option<&Vec<usize>>,
        _filters: &[Expr],
        _limit: Option<usize>,
    ) -> Result<Arc<dyn ExecutionPlan>> {
        let batch_size = state.config_options().execution.batch_size;
        let generator = self.as_generator(batch_size)?;
        let mut exec = LazyMemoryExec::try_new(self.schema(), vec![generator])?
            .with_projection(projection.cloned());

        if let Some(ordering) = self.output_ordering(exec.schema().as_ref()) {
            exec.add_ordering([ordering]);
        }

        Ok(Arc::new(exec))
    }
}

#[derive(Debug)]