Struct QueryOptimizationHint 

pub struct QueryOptimizationHint {
    pub title: String,
    pub description: String,
    pub severity: HintSeverity,
    pub suggested_sql: Option<String>,
}

单条查询优化建议

Fields

title: String

建议标题

description: String

详细描述

severity: HintSeverity

严重级别

suggested_sql: Option<String>

优化后的 SQL 建议（可选）

Implementations

impl QueryOptimizationHint

pub fn info(title: impl Into<String>, description: impl Into<String>) -> Self

创建一条信息级建议

pub fn warning(title: impl Into<String>, description: impl Into<String>) -> Self

创建一条警告级建议

pub fn critical( title: impl Into<String>, description: impl Into<String>, ) -> Self

创建一条严重级建议

pub fn with_suggested_sql(self, sql: impl Into<String>) -> Self

附加优化后的 SQL 建议

Trait Implementations

impl Clone for QueryOptimizationHint

fn clone(&self) -> QueryOptimizationHint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryOptimizationHint

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

Formats the value using the given formatter.