Struct mz_repr::explain::Attributes

pub struct Attributes {
    pub non_negative: Option<bool>,
    pub subtree_size: Option<usize>,
    pub arity: Option<usize>,
    pub types: Option<Option<Vec<ColumnType>>>,
    pub keys: Option<Vec<Vec<usize>>>,
    pub cardinality: Option<String>,
    pub column_names: Option<Vec<String>>,
}

Expand description

A container for derived attributes.

Fields§

§non_negative: Option<bool>§subtree_size: Option<usize>§arity: Option<usize>§types: Option<Option<Vec<ColumnType>>>§keys: Option<Vec<Vec<usize>>>§cardinality: Option<String>§column_names: Option<Vec<String>>

Trait Implementations§

impl Clone for Attributes

fn clone(&self) -> Attributes

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Attributes

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

Formats the value using the given formatter. Read more

impl Default for Attributes

fn default() -> Attributes

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl Freeze for Attributes

impl RefUnwindSafe for Attributes

impl Send for Attributes

impl Sync for Attributes

impl Unpin for Attributes

impl UnwindSafe for Attributes

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T, U> CastInto<U> for T
where U: CastFrom<T>,

fn cast_into(self) -> U

Performs the cast.

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

default 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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.

impl<T> FutureExt for T

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

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoRequest<T> for T

fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request

impl<T, U> OverrideFrom<Option<&T>> for U
where U: OverrideFrom<T>,

fn override_from(self, layer: &Option<&T>) -> U

Override the configuration represented by Self with values from the given layer.

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> ProgressEventTimestamp for T
where T: Data + Debug + Any,

fn as_any(&self) -> &(dyn Any + 'static)

Upcasts this ProgressEventTimestamp to Any. Read more

fn type_name(&self) -> &'static str

Returns the name of the concrete type of this object. Read more

impl<P, R> ProtoType<R> for P
where R: RustType<P>,

fn into_rust(self) -> Result<R, TryFromProtoError>

See RustType::from_proto.

fn from_rust(rust: &R) -> P

See RustType::into_proto.

impl<T> Same for T

type Output = T

Should always be Self

impl<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

impl<T> Data for T
where T: Clone + 'static,