DRG-51404
invalid token 'string' found for ALTER of string Search Index
Cause
An invalid token was found when parsing a parameter string that modified options specified to JSON or XML Search Index.
Action
Verify the token follows the syntax for the ALTER INDEX parameter string. Remove any options that do not relate to JSON or XML Search Index from the parameter string and retry the operation. Issue a separate ALTER INDEX statement to modify the removed options using the REPLACE command in the parameter string.