无论如何,您可以尝试通过以下方式执行任何自定义sql代码：

<YOUR_SUBCLASS_OF_sqliteConnection>.Execute(<YOUR_sql_CODE>);

例：

public class LocalDatabase: sqliteConnection
{
    ...
    public LocalDatabase (string path) : base(path)
    {
        ...
        Execute("CREATE VIRTUAL TABLE \"MyTable\" USING FTS3 ...");
        ...
    }       
    ...
}