Method len

src/repr/src/relation.rs:1094–1096

Returns the number of columns in this [`RelationDesc`].

(&self)

    /// Returns the number of columns in this [`RelationDesc`].
    pub fn len(&self) -> usize {
        self.typ().column_types.len()
    }

    /// Constructs a new `RelationDesc` from a `SqlRelationType` and an iterator
    /// over column names.