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AppendRequest

Struct AppendRequest 

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pub struct AppendRequest<S> { /* private fields */ }
Expand description

One Arrow source plus physical settings for a single append.

Pass the source directly to TimeSeriesTable::append to use the current Parquet writer defaults. Wrap it in AppendRequest only when one append needs an explicit output row-group limit. A nested request inherits its source’s limit unless the outer request replaces it.

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impl<S> AppendRequest<S>

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pub fn new(source: S) -> Self

Create a request without adding a row-group override.

Ordinary Arrow sources therefore use the current Parquet writer defaults. If source already carries a limit, this request inherits it until max_rows_per_row_group replaces it.

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pub fn max_rows_per_row_group(self, max_rows_per_row_group: usize) -> Self

Limit output Parquet row groups to this many rows for this append.

This controls rows, not bytes, input batches, or source-file row-group boundaries, and replaces any limit already carried by the source. Zero is rejected by TimeSeriesTable::append before the source is inspected or consumed.

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impl<S: Debug> Debug for AppendRequest<S>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<S> Freeze for AppendRequest<S>
where S: Freeze,

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impl<S> RefUnwindSafe for AppendRequest<S>
where S: RefUnwindSafe,

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impl<S> Send for AppendRequest<S>
where S: Send,

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impl<S> Sync for AppendRequest<S>
where S: Sync,

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impl<S> Unpin for AppendRequest<S>
where S: Unpin,

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impl<S> UnsafeUnpin for AppendRequest<S>
where S: UnsafeUnpin,

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impl<S> UnwindSafe for AppendRequest<S>
where S: UnwindSafe,

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

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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>

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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type Output = T

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

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type Error = Infallible

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

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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>

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