text: -- HFC-237 
  ALTER TABLE ORIGINALITYREPORT 
  ADD (ATTACHMENT_ID NVARCHAR2(100) );
  
  CREATE INDEX IDX_ORIGINALITYRPT_ATTACH ON ORIGINALITYREPORT (ATTACHMENT_ID);
  
  -- make submission_id nullable since it won't be used. we'll delete it later
  ALTER TABLE ORIGINALITYREPORT  
  MODIFY (SUBMISSION_ID NULL);
  