pub enum ColumnKey {
NotKey,
Primary,
Unique,
Multiple,
}
This is supported on crate features
mysql
and def
only.Variants
NotKey
This column is not the first column of any key
Primary
This column is part of the primary key
Unique
This column is the first column of a unique key
Multiple
This column is the first column of a non-unique key
Trait Implementations
impl StructuralPartialEq for ColumnKey
Auto Trait Implementations
impl RefUnwindSafe for ColumnKey
impl Send for ColumnKey
impl Sync for ColumnKey
impl Unpin for ColumnKey
impl UnwindSafe for ColumnKey
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more