Method with_fetch

datafusion/datasource/src/memory.rs:217–220

(&self, limit: Option<usize>)

    }

    fn with_fetch(&self, limit: Option<usize>) -> Option<Arc<dyn DataSource>> {
        let source = self.clone();
        Some(Arc::new(source.with_limit(limit)))
    }

    fn fetch(&self) -> Option<usize> {
        self.fetch