Function mz_repr::row::encoding2::array_to_decoder
source ยท fn array_to_decoder(
array: &Arc<dyn Array>,
col_ty: &ScalarType,
) -> Result<DatumColumnDecoder, Error>
Expand description
Small helper function to downcast from an array to a DatumColumnDecoder
.
Note: it is super important that we downcast as few times as possible. Datum encoding is a very hot path and downcasting is relatively slow