pub trait Backend {} | |
pub trait SupportsDefaultKeyword {} | |
impl SupportsDefaultKeyword for Postgres {} | |
pub struct Postgres; | |
impl Backend for Postgres {} | |
pub struct AstPass<DB>(::std::marker::PhantomData<DB>); | |
pub trait QueryFragment<DB: Backend> {} | |
#[derive(Debug, Clone, Copy)] | |
pub struct BatchInsert<'a, T: 'a, Tab> { | |
_marker: ::std::marker::PhantomData<(&'a T, Tab)>, | |
} | |
impl<'a, T:'a, Tab, DB> QueryFragment<DB> for BatchInsert<'a, T, Tab> | |
where DB: SupportsDefaultKeyword + Backend, | |
{} |