Struct InternedStringCodec 

pub struct InternedStringCodec;

Interned string table with run-length-encoded u16 references.

Used for agent IDs and parent hash lists, both of which have low cardinality and high repetition.

Layout:

[table_count: u32 LE]
[len_0: u16 LE] [bytes_0...]
...
[run_count: u32 LE]
[run_len_0: u16 LE] [index_0: u16 LE]
...

Trait Implementations

impl ColumnCodec for InternedStringCodec

type Item = String

The decoded Rust type for elements in this column.

fn encode(items: &[String], buf: &mut Vec<u8>) -> Result<(), CacheError>

Encode a slice of items into bytes.

fn decode(data: &[u8], count: usize) -> Result<(Vec<String>, usize), CacheError>

Decode count items from a byte slice.