Struct EncodingUtils 

pub struct EncodingUtils {}

Constructors for compression trees and structural execution descriptions.

Implementations

impl EncodingUtils

pub fn flat( bits_per_value: u64, values_compression: Option<BufferCompression>, ) -> CompressiveEncoding

pub fn constant(value: Option<Bytes>) -> CompressiveEncoding

pub fn fsl( items_per_value: u64, has_validity: bool, values: CompressiveEncoding, ) -> CompressiveEncoding

pub fn variable( offsets_desc: CompressiveEncoding, values_compression: Option<BufferCompression>, ) -> CompressiveEncoding

pub fn inline_bitpacking( uncompressed_bits_per_value: u64, values_compression: Option<BufferCompression>, ) -> CompressiveEncoding

pub fn out_of_line_bitpacking( uncompressed_bits_per_value: u64, values: CompressiveEncoding, ) -> CompressiveEncoding

pub fn buffer_compression( compression: CompressionConfig, ) -> Result<BufferCompression>

pub fn wrapped( compression: CompressionConfig, values: CompressiveEncoding, ) -> Result<CompressiveEncoding>

pub fn rle( values: CompressiveEncoding, run_lengths: CompressiveEncoding, ) -> CompressiveEncoding

pub fn byte_stream_split(values: CompressiveEncoding) -> CompressiveEncoding

pub fn fsst( data: CompressiveEncoding, symbol_table: Vec<u8>, ) -> CompressiveEncoding

pub fn repdef_layer_to_def_interp(layer: i32) -> DefinitionInterpretation

pub fn miniblock_layout( rep_encoding: Option<CompressiveEncoding>, def_encoding: Option<CompressiveEncoding>, value_encoding: CompressiveEncoding, repetition_index_depth: u32, num_buffers: u64, dictionary_encoding: Option<(CompressiveEncoding, u64)>, def_meaning: &[DefinitionInterpretation], num_items: u64, has_large_chunk: bool, ) -> PageLayout

pub fn fixed_full_zip_layout( bits_rep: u8, bits_def: u8, bits_per_value: u32, value_encoding: CompressiveEncoding, def_meaning: &[DefinitionInterpretation], num_items: u32, num_visible_items: u32, ) -> PageLayout

pub fn variable_full_zip_layout( bits_rep: u8, bits_def: u8, bits_per_offset: u32, value_encoding: CompressiveEncoding, def_meaning: &[DefinitionInterpretation], num_items: u32, num_visible_items: u32, ) -> PageLayout

pub fn blob_layout( inner_layout: PageLayout, def_meaning: &[DefinitionInterpretation], ) -> PageLayout

pub fn range( uncompressed_bits_per_value: u64, start: u64, step: u64, ) -> CompressiveEncoding

pub fn delta( uncompressed_bits_per_value: u64, base: u64, deltas: CompressiveEncoding, ) -> CompressiveEncoding

pub fn dictionary( indices: CompressiveEncoding, items: CompressiveEncoding, num_dictionary_items: u32, ) -> CompressiveEncoding

pub fn constant_layout( def_meaning: &[DefinitionInterpretation], inline_value: Option<Vec<u8>>, ) -> PageLayout

pub fn compressed_all_null_constant_layout( def_meaning: &[DefinitionInterpretation], rep_compression: Option<CompressiveEncoding>, def_compression: Option<CompressiveEncoding>, num_rep_values: u64, num_def_values: u64, ) -> PageLayout

pub fn packed_struct( values: CompressiveEncoding, bits_per_values: Vec<u64>, ) -> CompressiveEncoding

pub fn packed_struct_variable(fields: Vec<FieldEncoding>) -> CompressiveEncoding

pub fn packed_struct_field_fixed( value_encoding: CompressiveEncoding, bits_per_value: u64, ) -> FieldEncoding

pub fn packed_struct_field_variable( value_encoding: CompressiveEncoding, bits_per_length: u64, ) -> FieldEncoding