Struct tidb_query_datatype::codec::table::RowColsDict

pub struct RowColsDict {
    pub value: Vec<u8>,
    pub cols: HashMap<i64, RowColMeta>,
}

RowColsDict stores the row data and a map mapping column ID to its meta.

Fields

value: Vec<u8>

cols: HashMap<i64, RowColMeta>

Implementations

impl RowColsDict

pub fn new(cols: HashMap<i64, RowColMeta>, value: Vec<u8>) -> RowColsDict

pub fn len(&self) -> usize

Returns the total count of the columns.

pub fn is_empty(&self) -> bool

Returns whether it has columns or not.

pub fn get(&self, key: i64) -> Option<&[u8]>

Gets the column data from its meta if key exists.

pub fn append(&mut self, cid: i64, value: &mut Vec<u8>)

Appends a column to the row.

pub fn get_column_values_and_end_offsets(&self) -> (&[u8], Vec<usize>)

Gets binary of cols, keeps the original order, and returns one slice and cols’ end offsets.

Trait Implementations

impl Debug for RowColsDict

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

Formats the value using the given formatter.