Struct lance_index::vector::pq::transform::PQTransformer

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pub struct PQTransformer { /* private fields */ }
Expand description

Product Quantizer Transformer

It transforms a column of vectors into a column of PQ codes.

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impl PQTransformer

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pub fn new( quantizer: Arc<dyn ProductQuantizer>, input_column: &str, output_column: &str ) -> Self

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impl Debug for PQTransformer

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

Formats the value using the given formatter. Read more
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impl Transformer for PQTransformer

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fn transform<'life0, 'life1, 'async_trait>( &'life0 self, batch: &'life1 RecordBatch ) -> Pin<Box<dyn Future<Output = Result<RecordBatch>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Transform a RecordBatch of vectors

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