Module dictionary_buffer 

Re-exports

use crate::arrow::buffer::offset_buffer::OffsetBuffer; 🔒

use crate::arrow::record_reader::buffer::ValuesBuffer; 🔒

use crate::errors::ParquetError; 🔒

use crate::errors::Result; 🔒

use ahash::RandomState; 🔒

use arrow_array::Array; 🔒

use arrow_array::DictionaryArray; 🔒

use arrow_array::PrimitiveArray; 🔒

use arrow_array::downcast_integer; 🔒

use arrow_array::ArrayRef; 🔒

use arrow_array::FixedSizeBinaryArray; 🔒

use arrow_array::GenericBinaryArray; 🔒

use arrow_array::OffsetSizeTrait; 🔒

use arrow_array::builder::FixedSizeBinaryDictionaryBuilder; 🔒

use arrow_array::cast::AsArray; 🔒

use arrow_array::types::ArrowDictionaryKeyType; 🔒

use arrow_array::types::ArrowPrimitiveType; 🔒

use arrow_array::types::Int8Type; 🔒

use arrow_array::types::Int16Type; 🔒

use arrow_array::types::Int32Type; 🔒

use arrow_array::types::Int64Type; 🔒

use arrow_array::types::UInt8Type; 🔒

use arrow_array::types::UInt16Type; 🔒

use arrow_array::types::UInt32Type; 🔒

use arrow_array::types::UInt64Type; 🔒

use arrow_buffer::ArrowNativeType; 🔒

use arrow_buffer::BooleanBuffer; 🔒

use arrow_buffer::Buffer; 🔒

use arrow_buffer::MutableBuffer; 🔒

use arrow_buffer::NullBuffer; 🔒

use arrow_buffer::ScalarBuffer; 🔒

use arrow_schema::DataType as ArrowType; 🔒

use hashbrown::HashMap as HbHashMap; 🔒

use hashbrown::hash_map::Entry; 🔒

use std::hash::BuildHasher; 🔒

use std::hash::Hasher; 🔒

use std::mem::size_of; 🔒

use std::ptr::write_unaligned; 🔒

use std::slice::from_raw_parts; 🔒

use std::slice::from_raw_parts_mut; 🔒

use std::sync::Arc; 🔒

Macros

fixed_dict_helper 🔒

offsets_dict_helper 🔒

Structs

BuildPassthroughHasher 🔒

PassthroughHasher 🔒

Enums

DictionaryBuffer

An array of variable length byte arrays that are potentially dictionary encoded and can be converted into a corresponding [ArrayRef]

Functions

build_dictionary_array 🔒

Build a dictionary array from a raw keys buffer and an already-decoded values ArrayRef, skipping the ArrayData round-trip.

hash_byte_slices 🔒

hashes_as_u64 🔒

pack_fixed_values 🔒

pack_fixed_values_impl 🔒

pack_values_from_offsets 🔒

pack_values_from_offsets_impl 🔒

Builds a [DictionaryArray] directly from a flat OffsetBuffer using pre-computed hashes to deduplicate values in a single pass, avoiding the intermediate StringArray materialization

widen_key_bound 🔒