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