Method default_key

src/repr/src/relation.rs:333–343

Gets the index of the columns used when creating a default index.

(&self)

    /// Gets the index of the columns used when creating a default index.
    pub fn default_key(&self) -> Vec<usize> {
        if let Some(key) = self.keys.first() {
            if key.is_empty() {
                (0..self.column_types.len()).collect()
            } else {
                key.clone()
            }
        } else {
            (0..self.column_types.len()).collect()
        }
    }

    /// Returns all the [`SqlColumnType`]s, in order, for this relation.
    pub fn columns(&self) -> &[SqlColumnType] {