Function build 

pub fn build<'a>(
    plan: &'a Plan,
    catalog: &'a Catalog,
) -> Result<Box<dyn Operator + 'a>>

Builds the operator tree for a plan’s root.

Errors

If the plan names a table or a column the catalog does not have, if an expression is malformed in a way Plan::validate would have caught, or anything an operator’s construction reports.