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ColumnOptions

lance_nd

Struct ColumnOptions 

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pub struct ColumnOptions {
    pub compression: Option<Compression>,
    pub byte_stream_split: Option<ByteStreamSplit>,
    pub rle_threshold: Option<f64>,
    pub structural_encoding: Option<StructuralEncoding>,
}
Expand description

Lance encoding options of one column. None leaves the choice to Lance.

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§compression: Option<Compression>

The general compression of the values.

§byte_stream_split: Option<ByteStreamSplit>

Byte stream split of floating point values.

§rle_threshold: Option<f64>

Lance uses run-length encoding when runs < values * rle_threshold.

§structural_encoding: Option<StructuralEncoding>

The page layout of the column.

Implementations§

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impl ColumnOptions

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pub fn with_compression(self, compression: Compression) -> Self

Set the general compression.

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pub fn with_byte_stream_split(self, mode: ByteStreamSplit) -> Self

Set the byte stream split mode.

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pub fn with_rle_threshold(self, threshold: f64) -> Self

Set the run-length encoding threshold, from 0.0 to 1.0.

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pub fn with_structural_encoding(self, encoding: StructuralEncoding) -> Self

Set the structural encoding.

Trait Implementations§

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impl Clone for ColumnOptions

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ColumnOptions

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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 Default for ColumnOptions

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for ColumnOptions

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for ColumnOptions

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