DBCC CHECKDB / CHECKCATALOG Error 3853
Version: SQL Server 2019 (RTM-CU25) (KB5033688) - 15.0.4355.3 (X64), Enterprise Edition, Windows
When running DBCC CHECKDB or CHECKCATALOG we recently started getting the following errors:
Attribute (object_id=1295096596) of row (object_id=1295096596,stats_id=896001) in sys.objects does not have a matching row (object_id=564755797) in sys.stats.
Attribute (referenced_object_id=1295096596,key_index_id=896001) of row (object_id=1295096596) in sys.foreign_keys does not have a matching row (object_id=1295096596,index_id=896001) in sys.incremental_stats.
Although the database is in working order (for now), this appears to be across 3 tables. No changes were made to any tables. Looking at an older copy of the database, these records do NOT exist either in sys.stats or sys.foreign_keys. We can't find the table sys.incremental_stats - not even scouring the internet.
After a month of support calls, Microsoft support can only suggest restoring from the last good backup or scripting out the database and migrating the data (18TB) - which is now not feasible. Support can't suggest how this happened or raise a bug.
We have tried everything:
- Restored a backup copy to a new server
- Index maintenance (re-org and rebuild)
- Full stats updates
- Dropped/recreated all indexes (inc. clustered)
- Created new tables and dropped the old ones
- DBCC CHECKDB with REPAIR_ALLOW_DATA_LOSS.
The error still persists. It appears as though some internal process that updates the internal tables isn't firing. Has anybody seen this before? Any suggestions to fix this?
