Trait datafusion::exec::Batch

pub trait Batch {
    fn col_count(&self) -> usize;
    fn row_count(&self) -> usize;
    fn column(&self, index: usize) -> &Rc<ColumnData>;
    fn row_slice(&self, index: usize) -> Vec<Value>;
}

A batch of data organized as columns. The intent is to implement this using Apache Arrow soon but for now there will be a naive version while I integrate this.

Required Methods

fn col_count(&self) -> usize

fn row_count(&self) -> usize

fn column(&self, index: usize) -> &Rc<ColumnData>

fn row_slice(&self, index: usize) -> Vec<Value>

copy values into a row (EXPENSIVE)

Implementors

• impl Batch for ColumnBatch