Method save

datafusion/expr/src/expr_rewriter/mod.rs:341–356

(&self, expr: &Expr)

    }

    pub fn save(&self, expr: &Expr) -> SavedName {
        if self.use_alias {
            match expr {
                Expr::Alias(alias) => SavedName::Saved {
                    relation: alias.relation.clone(),
                    name: alias.name.clone(),
                },
                _ => {
                    let (relation, name) = expr.qualified_name();
                    SavedName::Saved { relation, name }
                }
            }
        } else {
            SavedName::None
        }
    }
}

impl SavedName {