SELECT "SPOOLER_ID" AS "JOB_SCHEDULER", "JOB_NAME", "ERROR", 
       "START_TIME", "END_TIME", "END_TIME"-"START_TIME" AS "ELAPSED" 
  FROM SCHEDULER_HISTORY
 WHERE DATE("START_TIME") >= CURRENT_DATE - 10 DAY
   AND COALESCE(DATE("END_TIME"), CURRENT_DATE - 1 DAY) <= CURRENT_DATE
   AND "JOB_NAME" <> '(Spooler)'
 GROUP BY "SPOOLER_ID", "JOB_NAME", "ERROR", "START_TIME", "END_TIME", "END_TIME"-"START_TIME";