Struct tidb_query_datatype::codec::data_type::ChunkedVecJson

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

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

Inside ChunkedVecJson, bitmap indicates if an element at given index is null, and data stores actual data. Json 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, a one byte json_type and variable size json data is stored in data, and var_offset indicates the starting position of each element.

Fields

data: Vec<u8>

bitmap: BitVec

length: usize

var_offset: Vec<usize>

Implementations

impl ChunkedVecJson

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

Trait Implementations

impl<'a> ChunkRef<'a, JsonRef<'a>> for &'a ChunkedVecJson

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

fn get_bit_vec(self) -> &'a BitVec

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

impl ChunkedVec<Json> for ChunkedVecJson

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

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

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

fn is_empty(&self) -> bool

fn with_capacity(capacity: usize) -> Self

fn push_data(&mut self, value: Json)

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<Json>>

impl Clone for ChunkedVecJson

fn clone(&self) -> ChunkedVecJson

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkedVecJson

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

Formats the value using the given formatter.

impl From<ChunkedVecJson> for VectorValue

fn from(s: ChunkedVecJson) -> VectorValue

Performs the conversion.

impl From<Vec<Option<Json>, Global>> for ChunkedVecJson

fn from(v: Vec<Option<Json>>) -> ChunkedVecJson

Performs the conversion.

impl PartialEq<ChunkedVecJson> for ChunkedVecJson

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

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

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

This method tests for !=.

impl StructuralPartialEq for ChunkedVecJson

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

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

Safety