Enum OrderBy 

pub enum OrderBy {
    Ordinal(usize),
    Expr(Expr),
}

What an order by key names.

Variants

Ordinal(usize)

order by 2 — the second column of the select list, one-based, as SQL numbers them.

Expr(Expr)

An expression over the row, which for order by c is the column c. A name that matches an output column’s name is that output column, and only then a column of a table: SQL resolves an order by against the select list first, and a query may order by something it computed.

Trait Implementations

impl Clone for OrderBy

fn clone(&self) -> OrderBy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OrderBy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.