Unfortunately I hit the same yesterday as Dreamscape. I tried marking the transaction log as unlimited size growth, but then I ran out of disk space (I have over 100GB free). I copied all the lines I saw and filtered out just the SQL commands and ran them manually, and on "UPDATE idata_1088 SET idata_timestamp = idata_timestamp * 1000" I get an error of "Arithmetic overflow error converting expression to data type int."
Ignoring that last error, running the upgrade command again gives me:
PS C:\netxms\bin> .\nxdbmgr.exe upgrade
NetXMS Database Manager Version 6.0.0 Build 6.0-444-gb145606172
INFO: Server module WEBAPI skipped
Upgrading database...
Upgrading from version 60.7 to 60.8
SQL query failed ([Microsoft][ODBC Driver 17 for SQL Server][SQL Server]The object 'PK__idata__410D428BF41FA2F0' is dependent on column 'idata_timestamp'.):
ALTER TABLE idata ALTER COLUMN idata_timestamp bigint
Rolling back last stage due to upgrade errors...
Database upgrade failed
Ignoring that last error, running the upgrade command again gives me:
PS C:\netxms\bin> .\nxdbmgr.exe upgrade
NetXMS Database Manager Version 6.0.0 Build 6.0-444-gb145606172
INFO: Server module WEBAPI skipped
Upgrading database...
Upgrading from version 60.7 to 60.8
SQL query failed ([Microsoft][ODBC Driver 17 for SQL Server][SQL Server]The object 'PK__idata__410D428BF41FA2F0' is dependent on column 'idata_timestamp'.):
ALTER TABLE idata ALTER COLUMN idata_timestamp bigint
Rolling back last stage due to upgrade errors...
Database upgrade failed