Struct tidb_query_datatype::codec::data_type::ChunkedVecJson

[+] Show declaration

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

[−] Expand description

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[+]

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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[+]

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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[+]

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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[+]

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

Formats the value using the given formatter.

impl From<ChunkedVecJson> for VectorValue[+]

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fn from(s: ChunkedVecJson) -> VectorValue[−]

Performs the conversion.

impl From<Vec<Option<Json>, Global>> for ChunkedVecJson[+]

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

Performs the conversion.

impl PartialEq<ChunkedVecJson> for ChunkedVecJson[+]

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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[+]

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

Safety