iceberg::writer::partitioning::clustered_writer

Struct ClusteredWriter

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pub struct ClusteredWriter<B, I = RecordBatch, O = Vec<DataFile>>
where
    B: IcebergWriterBuilder<I, O>,
    O: IntoIterator + FromIterator<<O as IntoIterator>::Item>,
    <O as IntoIterator>::Item: Clone,
{ /* private fields */ }
Expand description

A writer that writes data to a single partition at a time.

This writer expects input data to be sorted by partition key. It maintains only one active writer at a time, making it memory efficient for sorted data.

§Type Parameters

  • B - The inner writer builder type
  • I - Input type (defaults to RecordBatch)
  • O - Output collection type (defaults to Vec<DataFile>)

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impl<B, I, O> ClusteredWriter<B, I, O>
where B: IcebergWriterBuilder<I, O>, I: Send + 'static, O: IntoIterator + FromIterator<<O as IntoIterator>::Item>, <O as IntoIterator>::Item: Send + Clone,

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pub fn new(inner_builder: B) -> Self

Create a new ClusteredWriter.

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impl<B, I, O> PartitioningWriter<I, O> for ClusteredWriter<B, I, O>
where B: IcebergWriterBuilder<I, O>, I: Send + 'static, O: IntoIterator + FromIterator<<O as IntoIterator>::Item> + Send + 'static, <O as IntoIterator>::Item: Send + Clone,

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fn write<'life0, 'async_trait>( &'life0 mut self, partition_key: PartitionKey, input: I, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Write data with a partition key. Read more
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fn close<'async_trait>( self, ) -> Pin<Box<dyn Future<Output = Result<O>> + Send + 'async_trait>>
where Self: 'async_trait,

Close the writer and return the output. Read more

Auto Trait Implementations§

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impl<B, I, O> Freeze for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized, B: Freeze, <B as IcebergWriterBuilder<I, O>>::R: Freeze,

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impl<B, I, O> RefUnwindSafe for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized + RefUnwindSafe, B: RefUnwindSafe, <B as IcebergWriterBuilder<I, O>>::R: RefUnwindSafe, I: RefUnwindSafe,

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impl<B, I, O> Send for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized + Send, I: Send,

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impl<B, I, O> Sync for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized + Sync, <B as IcebergWriterBuilder<I, O>>::R: Sync, I: Sync,

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impl<B, I, O> Unpin for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized + Unpin, B: Unpin, <B as IcebergWriterBuilder<I, O>>::R: Unpin, I: Unpin,

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impl<B, I, O> UnwindSafe for ClusteredWriter<B, I, O>
where <O as IntoIterator>::Item: Sized + UnwindSafe, B: UnwindSafe, <B as IcebergWriterBuilder<I, O>>::R: UnwindSafe, I: UnwindSafe,

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