Method empty_derived_context

src/sql/src/plan/query.rs:6619–6623

Derives a `QueryContext` for a scope that contains no columns.

(&self)

    /// Derives a `QueryContext` for a scope that contains no columns.
    fn empty_derived_context(&self) -> QueryContext<'a> {
        let scope = Scope::empty();
        let ty = SqlRelationType::empty();
        self.derived_context(scope, ty)
    }

    /// Resolves `object` to a table expr, i.e. creating a `Get` or inlining a
    /// CTE.