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JoinOn

Struct JoinOn 

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pub struct JoinOn { /* private fields */ }
Expand description

JOIN 已指定右表,待指定 ON 条件

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impl JoinOn

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pub fn on<L, R>(self) -> JoinBuilt
where L: TypedColumn, R: TypedColumn,

指定 ON 条件:左表列 = 右表列

§类型约束
  • L: 左表列,必须属于“主表“(用户自行保证)
  • R: 右表列,必须属于 right_table(用户自行保证)

编译期通过 TypedColumn::Table 关联约束校验列归属。

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pub fn build_no_on(self) -> String

不带 ON 条件直接构造(用于 CROSS JOIN)

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