Struct tidb_query_datatype::codec::data_type::ChunkedVecBytes

pub struct ChunkedVecBytes {
    data: Vec<u8>,
    bitmap: BitVec,
    length: usize,
    var_offset: Vec<usize>,
}

Fields

data: Vec<u8>

bitmap: BitVec

length: usize

var_offset: Vec<usize>

Implementations

impl ChunkedVecBytes

A vector storing Option<Bytes> with a compact layout.

Inside ChunkedVecBytes, bitmap indicates if an element at given index is null, and data stores actual data. Bytes data are stored adjacent to each other in data. If element at a given index is null, then it takes no space in data. Otherwise, contents of the Bytes are stored, and var_offset indicates the starting position of each element.

pub fn push_data_ref(&mut self, value: BytesRef<'_>)

fn finish_append(&mut self)

pub fn push_ref(&mut self, value: Option<BytesRef<'_>>)

pub fn get(&self, idx: usize) -> Option<BytesRef<'_>>

pub fn into_writer(self) -> BytesWriter

Trait Implementations

impl<'a> ChunkRef<'a, &'a [u8]> for &'a ChunkedVecBytes

fn get_option_ref(self, idx: usize) -> Option<BytesRef<'a>>

fn get_bit_vec(self) -> &'a BitVec

fn phantom_data(self) -> Option<BytesRef<'a>>

impl ChunkedVec<Vec<u8, Global>> for ChunkedVecBytes

fn from_slice(slice: &[Option<Bytes>]) -> Self

fn from_vec(data: Vec<Option<Bytes>>) -> Self

fn push(&mut self, value: Option<Bytes>)

fn is_empty(&self) -> bool

fn with_capacity(capacity: usize) -> Self

fn push_data(&mut self, value: Bytes)

fn push_null(&mut self)

fn len(&self) -> usize

fn truncate(&mut self, len: usize)

fn capacity(&self) -> usize

fn append(&mut self, other: &mut Self)

fn to_vec(&self) -> Vec<Option<Bytes>>

impl Clone for ChunkedVecBytes

fn clone(&self) -> ChunkedVecBytes

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChunkedVecBytes

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<ChunkedVecBytes> for VectorValue

fn from(s: ChunkedVecBytes) -> VectorValue

Performs the conversion.

impl From<Vec<Option<Vec<u8, Global>>, Global>> for ChunkedVecBytes

fn from(v: Vec<Option<Bytes>>) -> ChunkedVecBytes

Performs the conversion.

impl PartialEq<ChunkedVecBytes> for ChunkedVecBytes

fn eq(&self, other: &ChunkedVecBytes) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ChunkedVecBytes) -> bool

This method tests for !=.

impl StructuralPartialEq for ChunkedVecBytes

impl<'a> UnsafeRefInto<&'static ChunkedVecBytes> for &'a ChunkedVecBytes

unsafe fn unsafe_into(self) -> &'static ChunkedVecBytes

Safety