update 补充优化sql脚本 添加注释

songgaoshuai

2024-04-01 089b089fce6b75daa6c8062f9208d2e245ac427d

 ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/core/page/PageQuery.java

@@ -111,4 +111,8 @@
        return list;
    }

    public Integer getFirstNum() {
        return (pageNum - 1) * pageSize;
    }

}