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update MAPPING.md.

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jera 2021-09-01 10:51:14 +00:00 committed by Gitee
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MAPPING.md
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@ -83,7 +83,7 @@ public class UserDO {
```java
/**
* 一对一，一对多关系映射查询
* 映射只对以Deep结尾，比如 getByIdDeep listByIdsDeep 等
* 映射只对以Deep结尾有效，比如 getByIdDeep listByIdsDeep 等
* 如果不需要关系映射就使用mybatis plus原生方法即可，比如 getById listByIds 等
*
* 注意：关系映射不会去关联查询，而是执行多次单表查询（对结果汇总后使用in语句查询,再对结果进行匹配）