Seaquel
SQL Server error code

SQL Server error 4983

SQL Server raises error 4983 at severity 16, which marks a problem with the query or data that you can correct.

ALTER TABLE SWITCH statement failed. Target table '%.*ls' has an XML or spatial index '%.*ls' on it. Only source table can have XML or spatial indexes in the ALTER TABLE SWITCH statement.
Msg4983
Severity16
Group4000–4999

Source: Database Engine events and errors