Struct RowData 

pub struct RowData { /* private fields */ }

行数据（列名 -> Value）

Implementations

impl RowData

pub fn new(columns: HashMap<String, Value>) -> Self

创建空行

pub fn empty() -> Self

创建空行

pub fn set(&mut self, column: impl Into<String>, value: Value)

插入/更新列

pub fn get(&self, column: &str) -> Option<&Value>

按列名取值

pub fn get_with_prefix(&self, prefix: &str, column: &str) -> Option<&Value>

按前缀 + 列名取值（用于 JOIN 列前缀隔离）

例如：prefix=“dept_”, column=“id” 将查找 “dept_id”

pub fn is_not_null(&self, column: &str) -> bool

判断列是否存在且非 NULL

pub fn len(&self) -> usize

列数

pub fn is_empty(&self) -> bool

是否为空

pub fn column_names(&self) -> Vec<String>

所有列名

pub fn sorted_columns(&self) -> Vec<(&String, &Value)>

获取所有列的引用（按列名排序）

pub fn iter(&self) -> impl Iterator<Item = (&String, &Value)>

获取所有列的迭代器

Trait Implementations

impl Clone for RowData

fn clone(&self) -> RowData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RowData

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

Formats the value using the given formatter.

impl Default for RowData

fn default() -> RowData

Returns the “default value” for a type.