mz_sql_parser::ast::defs::ddl

Struct ColumnOptionDef

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pub struct ColumnOptionDef<T: AstInfo> {
    pub name: Option<Ident>,
    pub option: ColumnOption<T>,
}
Expand description

An optionally-named ColumnOption: [ CONSTRAINT <name> ] <column-option>.

Note that implementations are substantially more permissive than the ANSI specification on what order column options can be presented in, and whether they are allowed to be named. The specification distinguishes between constraints (NOT NULL, UNIQUE, PRIMARY KEY, and CHECK), which can be named and can appear in any order, and other options (DEFAULT, GENERATED), which cannot be named and must appear in a fixed order. PostgreSQL, however, allows preceding any option with CONSTRAINT <name>, even those that are not really constraints, like NULL and DEFAULT. MSSQL is less permissive, allowing DEFAULT, UNIQUE, PRIMARY KEY and CHECK to be named, but not NULL or NOT NULL constraints (the last of which is in violation of the spec).

For maximum flexibility, we don’t distinguish between constraint and non-constraint options, lumping them all together under the umbrella of “column options,” and we allow any column option to be named.

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§name: Option<Ident>§option: ColumnOption<T>

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impl<T: AstInfo> AstDisplay for ColumnOptionDef<T>

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impl<T: Clone + AstInfo> Clone for ColumnOptionDef<T>

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fn clone(&self) -> ColumnOptionDef<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug + AstInfo> Debug for ColumnOptionDef<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: AstInfo> Display for ColumnOptionDef<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: AstInfo, T2: AstInfo> FoldNode<T, T2> for ColumnOptionDef<T>

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type Folded = ColumnOptionDef<T2>

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fn fold<F: Fold<T, T2>>(self, folder: &mut F) -> Self::Folded

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impl<T: Hash + AstInfo> Hash for ColumnOptionDef<T>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T: PartialEq + AstInfo> PartialEq for ColumnOptionDef<T>

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fn eq(&self, other: &ColumnOptionDef<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'ast, T: AstInfo> VisitMutNode<'ast, T> for ColumnOptionDef<T>

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fn visit_mut<V: VisitMut<'ast, T>>(&'ast mut self, visitor: &mut V)

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impl<'ast, T: AstInfo> VisitNode<'ast, T> for ColumnOptionDef<T>

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fn visit<V: Visit<'ast, T>>(&'ast self, visitor: &mut V)

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impl<T: Eq + AstInfo> Eq for ColumnOptionDef<T>

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impl<T: AstInfo> StructuralPartialEq for ColumnOptionDef<T>

Auto Trait Implementations§

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impl<T> Freeze for ColumnOptionDef<T>
where <T as AstInfo>::DataType: Freeze, <T as AstInfo>::ItemName: Freeze,

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impl<T> RefUnwindSafe for ColumnOptionDef<T>

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impl<T> Send for ColumnOptionDef<T>
where <T as AstInfo>::DataType: Send, <T as AstInfo>::ItemName: Send, <T as AstInfo>::ClusterName: Send, <T as AstInfo>::SchemaName: Send, <T as AstInfo>::CteId: Send, <T as AstInfo>::DatabaseName: Send, <T as AstInfo>::RoleName: Send,

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impl<T> Sync for ColumnOptionDef<T>
where <T as AstInfo>::DataType: Sync, <T as AstInfo>::ItemName: Sync, <T as AstInfo>::ClusterName: Sync, <T as AstInfo>::SchemaName: Sync, <T as AstInfo>::CteId: Sync, <T as AstInfo>::DatabaseName: Sync, <T as AstInfo>::RoleName: Sync,

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impl<T> Unpin for ColumnOptionDef<T>
where <T as AstInfo>::DataType: Unpin, <T as AstInfo>::ItemName: Unpin,

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impl<T> UnwindSafe for ColumnOptionDef<T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, U> CastInto<U> for T
where U: CastFrom<T>,

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fn cast_into(self) -> U

Performs the cast.
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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where U: From<T>,

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Calls U::from(self).

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const ALIGN: usize = _

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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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type Output = T

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