Struct mz_persist_types::dyn_struct::DynStruct

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pub struct DynStruct;
Expand description

A “dynamic” columnar struct.

See DynStructCfg.

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impl ColumnCfg<DynStruct> for DynStructCfg

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fn as_type(&self) -> DataType

Returns the DataType for an instance of T with this configuration.
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impl ColumnGet<DynStruct> for DynStructCol

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fn get<'a>(&'a self, idx: usize) -> DynStructRef<'a>

Retrieves the value at index.
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impl ColumnPush<DynStruct> for DynStructMut

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fn push<'a>(&mut self, val: DynStructRef<'a>)

Pushes a new value into this column.
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fn finish(self) -> <DynStruct as Data>::Col

Finishes the mutable column returning the corresponding Data::Col.
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impl ColumnStats<DynStruct> for StructStats

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fn lower<'a>(&'a self) -> Option<<DynStruct as Data>::Ref<'a>>

An inclusive lower bound on the data contained in the column, if known. Read more
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fn upper<'a>(&'a self) -> Option<<DynStruct as Data>::Ref<'a>>

Same as Self::lower but an (also inclusive) upper bound.
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fn none_count(&self) -> usize

The number of Nones if this column is optional or 0 if it isn’t.
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impl Data for DynStruct

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type Cfg = DynStructCfg

If necessary, whatever information beyond the type of Self needed to produce a columnar schema for this type. Read more
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type Ref<'a> = DynStructRef<'a>

The associated reference type of Self used for reads and writes on columns of this type.
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type Col = DynStructCol

The shared reference of columns of this type of data.
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type Mut = DynStructMut

The exclusive builder of columns of this type of data.
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type Stats = StructStats

The statistics type of columns of this type of data.
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impl Debug for DynStruct

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

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

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<P, R> ProtoType<R> for P
where R: RustType<P>,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,