In-Place Alter Table. Perform EXECUTE FUNCTION sysadmin:task('table update_ipa', 'table_name','database');
Cause
Reversion to a previous version of the database server was attempted while an in-place alter operation is in progress on a table. The previous versions of the database server cannot handle tables that have multiple schemas of rows in them.
Action
Force any in-place alter operations to complete by updating the rows in the affected tables before you attempt to revert to a previous version of the database server. Run the SQL administration API task() or admin() command with the table update_ipa argument to resolve all pending in-place alter operations on the table.