Module izihawa_tantivy_columnar::column_values

fastfield_codecs

• Columnar storage of data for tantivy crate::Column.
• Encode data in different codecs.
• Monotonically map values to u64/u128

Structs

• ColumnStats
  Column statistics.
• CompactSpaceU64Accessor
  Exposes the compact space compressed values as u64.
• EmptyColumnValues
  Empty column of values.
• VecColumn
  VecColumn provides Column over a Vec<T>.

Enums

• CodecType
  Available codecs to use to encode the u64 (via MonotonicallyMappableToU64) converted data.

Constants

• ALL_U64_CODEC_TYPES
  List of all available u64-base codecs.

Traits

• ColumnValues
  ColumnValues provides access to a dense field column.
• MonotonicallyMappableToU64
  Monotonic maps a value to u64 value space. Monotonic mapping enables PartialOrd on u64 space without conversion to original space.
• MonotonicallyMappableToU128
  Montonic maps a value to u128 value space Monotonic mapping enables PartialOrd on u128 space without conversion to original space.
• StrictlyMonotonicFn
  Values need to be strictly monotonic mapped to a Internal value (u64 or u128) that can be used in fast field codecs.

Functions

• load_u64_based_column_values
  Load u64-based column values.
• monotonic_map_column
  Creates a view of a column transformed by a strictly monotonic mapping. See StrictlyMonotonicFn.
• open_u128_as_compact_u64
  Returns the u64 representation of the u128 data. The internal representation of the data as u64 is useful for faster processing.
• open_u128_mapped
  Returns the correct codec reader wrapped in the Arc for the data.
• serialize_and_load_u64_based_column_values
  Helper function to serialize a column (autodetect from all codecs) and then open it
• serialize_column_values_u128
  Serializes u128 values with the compact space codec.
• serialize_u64_based_column_values
  Serializes a given column of u64-mapped values.