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PforEncoder

alopex_core::columnar::encoding_v2

Struct PforEncoder 

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pub struct PforEncoder {
    pub percentile: f64,
}
Expand description

Patched FOR encoder.

Like FOR but handles outliers separately. Efficient when most values fit in small range with few exceptions.

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§percentile: f64

Percentile threshold for determining bit width (0.0-1.0).

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impl Default for PforEncoder

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Encoder for PforEncoder

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fn encode(&self, data: &Column, null_bitmap: Option<&Bitmap>) -> Result<Vec<u8>>

Encode column data with optional null bitmap.
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fn encoding_type(&self) -> EncodingV2

Get the encoding type.

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impl<T> Any for T
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where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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impl<T, U> Into<U> for T
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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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