datafusion_physical_plan::projection

Function new_join_children

Source 
pub fn new_join_children(
    projection_as_columns: &[(Column, String)],
    far_right_left_col_ind: i32,
    far_left_right_col_ind: i32,
    left_child: &Arc<dyn ExecutionPlan>,
    right_child: &Arc<dyn ExecutionPlan>,
) -> Result<(ProjectionExec, ProjectionExec)>
Expand description

If pushing down the projection over this join’s children seems possible, this function constructs the new ProjectionExecs that will come on top of the original children of the join.