5.2.1 - 2021-06-20

• Upgrade dependency jsqlparser 4.0, mybatis 3.5.7
• Automatically recognize the following databases：
  • 虚谷数据库 xugu #599
  • 神通数据库 oscar by ranqing
  • 瀚高数据库 highgo by ashaiqing
• BoundSqlInterceptorChain interceptor index parameter bug, fixed #587
• fixed #558
• Add PostgreSQL dialect by liym@home
• fixed #604, Solve the problem of total loss
• Add code comments, fixed #547

• 升级依赖 jsqlparser 4.0, mybatis 3.5.7
• 自动识别以下数据库：
  • 虚谷数据库 xugu #599
  • 神通数据库 oscar by ranqing
  • 瀚高数据库 highgo by ashaiqing
• BoundSqlInterceptorChain拦截器index参数bug, fixed #587
• fixed #558
• 添加 PostgreSQL 方言 by liym@home
• fixed #604, 解决total丢失的问题
• 规范注释, fixed #547