Struct ImportBuilder

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

A builder for an ETL IMPORT job.

Calling [build().await] will ouput a future that drives the IMPORT query execution and a Vec<ExaWriter> which must be concurrently used to ingest data into Exasol.

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impl<'a> ImportBuilder<'a>

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pub fn new(dest_table: &'a str) -> Self

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pub async fn build<'c>( &'a self, con: &'c mut ExaConnection, ) -> Result<(BoxFuture<'c, Result<ExaQueryResult>>, Vec<ExaImport>)>
where 'c: 'a,

Builds the IMPORT job.

This implies submitting the IMPORT query. The output will be a future to await the result of the job and the workers that can be used for ETL IO.

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Returns an error if the job could not be built and submitted.

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pub fn num_writers(&mut self, num_writers: usize) -> &mut Self

Sets the number of writer jobs that will be started.

If set to 0, then as many as possible will be used (one per node). Providing a number bigger than the number of nodes is the same as providing 0.

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pub fn buffer_size(&mut self, buffer_size: usize) -> &mut Self

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pub fn compression(&mut self, enabled: bool) -> &mut Self

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pub fn columns(&mut self, columns: Option<&'a [&'a str]>) -> &mut Self

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pub fn comment(&mut self, comment: &'a str) -> &mut Self

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pub fn encoding(&mut self, encoding: &'a str) -> &mut Self

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pub fn null(&mut self, null: &'a str) -> &mut Self

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pub fn row_separator(&mut self, separator: RowSeparator) -> &mut Self

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pub fn column_separator(&mut self, separator: &'a str) -> &mut Self

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pub fn column_delimiter(&mut self, delimiter: &'a str) -> &mut Self

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pub fn skip(&mut self, num: u64) -> &mut Self

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pub fn trim(&mut self, trim: Trim) -> &mut Self

Trait Implementations§

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impl<'a> Clone for ImportBuilder<'a>

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fn clone(&self) -> ImportBuilder<'a>

Returns a duplicate 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<'a> Debug for ImportBuilder<'a>

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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<'a> Freeze for ImportBuilder<'a>

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impl<'a> RefUnwindSafe for ImportBuilder<'a>

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impl<'a> Send for ImportBuilder<'a>

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impl<'a> Sync for ImportBuilder<'a>

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impl<'a> Unpin for ImportBuilder<'a>

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impl<'a> UnwindSafe for ImportBuilder<'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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> 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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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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Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,