Struct xitca_postgres::pipeline::PipelineItem

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pub struct PipelineItem<'a> { /* private fields */ }
Expand description

streaming item of certain query inside pipeline’s PipelineStream. impl AsyncLendingIterator and can be used to collect Row from item.

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impl PipelineItem<'_>

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pub async fn row_affected(self) -> Result<u64, Error>

collect rows affected by this pipelined query. Row information will be ignored.

§Panic

calling this method on an already finished PipelineItem will cause panic. PipelineItem is marked as finished when its AsyncLendingIterator::try_next method returns Option::None

Trait Implementations§

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impl AsyncLendingIterator for PipelineItem<'_>

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type Ok<'i> = GenericRow<&'i [Column], &'i mut Vec<Range<usize>>, Typed> where Self: 'i

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type Err = Error

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async fn try_next(&mut self) -> Result<Option<Self::Ok<'_>>, Self::Err>

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fn size_hint(&self) -> (usize, Option<usize>)

Auto Trait Implementations§

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impl<'a> Freeze for PipelineItem<'a>

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impl<'a> RefUnwindSafe for PipelineItem<'a>

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impl<'a> Send for PipelineItem<'a>

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impl<'a> Sync for PipelineItem<'a>

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impl<'a> Unpin for PipelineItem<'a>

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impl<'a> !UnwindSafe for PipelineItem<'a>

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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> 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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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>,

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