Method take

src/sql/src/plan/hir.rs:1972–1977

(&mut self)

    }

    pub fn take(&mut self) -> HirRelationExpr {
        mem::replace(
            self,
            HirRelationExpr::constant(vec![], SqlRelationType::new(Vec::new())),
        )
    }

    #[deprecated = "Use `Visit::visit_post`."]
    pub fn visit<'a, F>(&'a self, depth: usize, f: &mut F)