connectorx::destinations::arrow2

Struct ArrowPartitionWriter

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pub struct ArrowPartitionWriter { /* private fields */ }

Trait Implementations§

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impl<'a, T> Consume<T> for ArrowPartitionWriter
where T: TypeAssoc<<Self as DestinationPartition<'a>>::TypeSystem> + ArrowAssoc + 'static,

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type Error = Arrow2DestinationError

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fn consume(&mut self, value: T) -> Result<(), Arrow2DestinationError>

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impl<'a> DestinationPartition<'a> for ArrowPartitionWriter

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type TypeSystem = Arrow2TypeSystem

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type Error = Arrow2DestinationError

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fn ncols(&self) -> usize

Number of rows this PartitionDestination controls.
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fn finalize(&mut self) -> Result<(), Arrow2DestinationError>

Final clean ups
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fn aquire_row(&mut self, _n: usize) -> Result<usize, Arrow2DestinationError>

Aquire n rows in final destination
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fn write<T>( &mut self, value: T, ) -> Result<(), <Self as DestinationPartition<'a>>::Error>
where T: TypeAssoc<Self::TypeSystem>, Self: Consume<T, Error = <Self as DestinationPartition<'a>>::Error>,

Write a value of type T to the location (row, col). If T mismatch with the schema, ConnectorXError::TypeCheckFailed will return.

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