Enum sql_ast::ast::TableConstraint
source · pub enum TableConstraint {
Unique {
name: Option<Ident>,
columns: Vec<Ident>,
is_primary: bool,
},
ForeignKey {
name: Option<Ident>,
columns: Vec<Ident>,
foreign_table: ObjectName,
referred_columns: Vec<Ident>,
},
Check {
name: Option<Ident>,
expr: Box<Expr>,
},
}
Expand description
A table-level constraint, specified in a CREATE TABLE
or an
ALTER TABLE ADD <constraint>
statement.
Variants§
Unique
[ CONSTRAINT <name> ] { PRIMARY KEY | UNIQUE } (<columns>)
Fields
ForeignKey
A referential integrity constraint ([ CONSTRAINT <name> ] FOREIGN KEY (<columns>) REFERENCES <foreign_table> (<referred_columns>)
)
Fields
§
foreign_table: ObjectName
Check
[ CONSTRAINT <name> ] CHECK (<expr>)
Trait Implementations§
source§impl Clone for TableConstraint
impl Clone for TableConstraint
source§fn clone(&self) -> TableConstraint
fn clone(&self) -> TableConstraint
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for TableConstraint
impl Debug for TableConstraint
source§impl Display for TableConstraint
impl Display for TableConstraint
source§impl Hash for TableConstraint
impl Hash for TableConstraint
source§impl PartialEq for TableConstraint
impl PartialEq for TableConstraint
source§fn eq(&self, other: &TableConstraint) -> bool
fn eq(&self, other: &TableConstraint) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.impl Eq for TableConstraint
impl StructuralPartialEq for TableConstraint
Auto Trait Implementations§
impl Freeze for TableConstraint
impl RefUnwindSafe for TableConstraint
impl Send for TableConstraint
impl Sync for TableConstraint
impl Unpin for TableConstraint
impl UnwindSafe for TableConstraint
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more