hi

i use postgresql dialect (not mysql) but when invoke method insertorupadate i see this exception:

Unsupported expression type: class me.liuwj.ktorm.support.mysql.InsertOrUpdateExpression

2. how to release (disconnect) from database when finish (i use Database.connect { ..... }) i not found any method in Database class to disconnect from db

3. add interceptor when database disconnect

4. add ktorm support for : sqlite, firebird, mssql server, mongo