Function rewrite_column_expr

datafusion/pruning/src/pruning_predicate.rs:1242–1257

replaces a column with an old name with a new name in an expression

(
    e: Arc<dyn PhysicalExpr>,
    column_old: &phys_expr::Column,
    column_new: &phys_expr::Column,
)

/// replaces a column with an old name with a new name in an expression
fn rewrite_column_expr(
    e: Arc<dyn PhysicalExpr>,
    column_old: &phys_expr::Column,
    column_new: &phys_expr::Column,
) -> Result<Arc<dyn PhysicalExpr>> {
    e.transform(|expr| {
        if let Some(column) = expr.downcast_ref::<phys_expr::Column>()
            && column == column_old
        {
            return Ok(Transformed::yes(Arc::new(column_new.clone())));
        }

        Ok(Transformed::no(expr))
    })
    .data()
}

fn reverse_operator(op: Operator) -> Result<Operator> {
    op.swap().ok_or_else(|| {