Description
Use blueprints to connect to the PostgreSQL database, execute SQL statements and obtain result sets.
使用蓝图连接PostgreSQL数据库，执行SQL语句并获得结果集。
Plugins can directly execute SQL statements, SELECT, DELETE, INSERT, UPDATE.
Directly operate the database, and return the corresponding result set, and can convert the result set into TArray<TMap<FString, FString>> or Json data.
插件可以直接执行SQL语句，SELECT，DELETE，INSERT，UPDATE。
直接操作数据库，并返回相应结果集，并可以把结果集转换为TArray<TMap<FString,FString>>或是Json数据。
1. Connect Postgre SQL
After connecting to the database and configuring the corresponding database information, the connection will always be maintained in the background.
连接数据库，配置相应数据库信息后，会在后台一直保持连接。
2. Execute SQL
Execute database statements, and can also call database stored procedures and functions.
执行数据库语句。