Seaquel
SQL Server error code

SQL Server error 2798

SQL Server raises error 2798 at severity 16, which marks a problem with the query or data that you can correct.

Cannot create index or statistics '%.*ls' on table '%.*ls' because SQL Server cannot verify that key column '%.*ls' is precise and deterministic. Consider removing column from index or statistics key, marking computed column persisted, or using non-CLR-derived column in key.
Msg2798
Severity16
Group2000–2999

Source: Database Engine events and errors