Trait SelectSeed 

pub trait SelectSeed<S, V, C> {
    // Required method
    fn seed(&self, select: &mut S)
       where S: Selectable<V, C>,
             V: From<String>;
}

Applies a source to a freshly-created Select.

Table::select_empty is generic over every SelectableDataSource, including backends whose Source is String and whose Select is not Expressive. So the source can’t be matched against SelectSource directly there — this trait dispatches on the concrete source type, keeping the Expressive requirement confined to the query-capable backends.

Required Methods

fn seed(&self, select: &mut S)

where S: Selectable<V, C>, V: From<String>,

Add this source to select as its FROM clause.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<S, V, C> SelectSeed<S, V, C> for String

fn seed(&self, select: &mut S)

where S: Selectable<V, C>, V: From<String>,

Implementors

impl<S, V, C> SelectSeed<S, V, C> for SelectSource<S>

where S: Expressive<V> + Clone, V: Clone,