Crate vortex_dict

Implementation of Dictionary encoding.

Expose a DictArray which is zero-copy equivalent to Arrow’s DictionaryArray.

Structs

• DictArray
• DictEncoding
  The array encoding
• DictMetadata

Constants

• NULL_CODE
  Statically assigned code for a null value.

Functions

• dict_encode_primitive
• dict_encode_typed_primitive
  Dictionary encode primitive array with given PType. Null values in the original array are encoded in the dictionary.
• dict_encode_varbin
  Dictionary encode varbin array. Specializes for primitive byte arrays to avoid double copying
• dict_encode_varbinview
  Dictionary encode a VarbinViewArray.