Trait LabelExt 

pub trait LabelExt: Sized {
    // Provided method
    fn label<K>(self, _key: K) -> Labeled<K, Self>
       where K: LabelKey { ... }
}

Files a selected item under a declared name: the way to select the same expression twice, and the way out of two tables’ same-named columns colliding.

Provided Methods

fn label<K>(self, _key: K) -> Labeled<K, Self>

where K: LabelKey,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<C> LabelExt for Column<C>

where C: ColumnKey,

impl<K, Req, S> LabelExt for Keyed<K, Req, S>

where S: SqlType,

impl<Req, S> LabelExt for Expr<Req, S>

where S: SqlType,