Method old_column

nodedb-query/src/expr/eval.rs:37–42

(&self, name: &str)

    }

    fn old_column(&self, name: &str) -> Value {
        match self.old_doc {
            Some(old) => old.get(name).cloned().unwrap_or(Value::Null),
            None => Value::Null,
        }
    }

    fn excluded_column(&self, name: &str) -> Value {
        match self.excluded_doc {