Hello Qing,

Is it possible for you to send us your labkey.log file? It should have recorded full log activity from when the server was upgraded from v17 to v19.1.

The list module hasn't had any updates to it regarding SQL since 2014, but if the table has increased in size, it sounds like some other SQL would have had to have caused this. The labkey.log file should be able to confirm what ran.

Also, what specific version of LabKey 17 were you originally on? 17.1? 17.2? 17.3?

Regards,

Jon