子查询有OR无法展开,改写成union

<pre name="code" class="sql">SQL> set linesize 200
SQL> set pagesize 200
SQL> explain plan for SELECT A.*
  FROM (SELECT CD.*,
               nvl(CV.SUM_CI_BALANCE, 0) as SUM_CI_BALANCE,
               nvl(CV.SUM_LN_BALANCE, 0) as SUM_LN_BALANCE
          FROM OCRM_F_CI_CUST_DESC CD
          left join (select cust_id,
                           FR_ID,
                           sum(CI_BALANCE) as sum_CI_BALANCE,
                           sum(LN_BALANCE) as sum_LN_BALANCE
                      from OCRM_F_CI_CUST_VIEW
                     where 1 = 1
                       and FR_ID = '15601'
                       and (MGR_ID = '00001' OR
                           MGR_ID IN
                           (SELECT USER_ID
                               FROM ADMIN_AUTH_MANAGE_ACCOUNT
                              WHERE MANAGE_ID = '00001'))
                     group by cust_id, FR_ID) CV
            on CD.Cust_Id = CV.cust_id
           and CD.Fr_Id = CV.fr_id
         WHERE 1 = 1
           and CD.FR_ID = '15601') A
 where 1 = 1
   AND ((EXISTS
        (SELECT 1
            FROM OCRM_F_CI_BELONG_CUSTMGR MGR
           WHERE MGR.CUST_ID = A.CUST_ID
             AND (MGR.MGR_ID = '00001' OR
                 MGR.MGR_ID IN (SELECT USER_ID
                                   FROM ADMIN_AUTH_MANAGE_ACCOUNT
                                  WHERE MANAGE_ID = '00001')))))
 ORDER BY to_number(SUM_CI_BALANCE) DESC, to_number(SUM_LN_BALANCE) DESC  2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32  ;

Explained.

SQL> select * from table(dbms_xplan.display());

PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Plan hash value: 357394316

-------------------------------------------------------------------------------------------------------------
| Id  | Operation		  | Name		    | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     |
-------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT	  |			    | 52370 |	 13M|	    | 18484   (1)| 00:03:42 |
|   1 |  SORT ORDER BY		  |			    | 52370 |	 13M|	 14M| 18484   (1)| 00:03:42 |
|*  2 |   HASH JOIN RIGHT OUTER   |			    | 52370 |	 13M|  2528K| 15534   (1)| 00:03:07 |
|   3 |    VIEW 		  |			    | 40370 |  2050K|	    |  8394   (1)| 00:01:41 |
|   4 |     HASH GROUP BY	  |			    | 40370 |  1537K|	 43M|  8394   (1)| 00:01:41 |
|*  5 |      FILTER		  |			    |	    |	    |	    |		 |	    |
|*  6 |       TABLE ACCESS FULL   | OCRM_F_CI_CUST_VIEW     |	804K|	 29M|	    |  2852   (1)| 00:00:35 |
|*  7 |       INDEX RANGE SCAN	  | IDX_AUTH_MANAGE_ACCOUNT |	  1 |	 13 |	    |	  1   (0)| 00:00:01 |
|*  8 |    HASH JOIN RIGHT SEMI   |			    | 52370 |	 10M|	    |  6469   (1)| 00:01:18 |
|   9 |     VIEW		  | VW_SQ_1		    | 52308 |  1021K|	    |  1474   (1)| 00:00:18 |
|* 10 |      FILTER		  |			    |	    |	    |	    |		 |	    |
|  11 |       INDEX FAST FULL SCAN| IDX_CI_BELONG_CUSTMGR   |  1043K|	 26M|	    |  1474   (1)| 00:00:18 |
|* 12 |       INDEX RANGE SCAN	  | IDX_AUTH_MANAGE_ACCOUNT |	  1 |	 13 |	    |	  1   (0)| 00:00:01 |
|* 13 |     TABLE ACCESS FULL	  | OCRM_F_CI_CUST_DESC     |	541K|	 97M|	    |  4994   (1)| 00:01:00 |
-------------------------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   2 - access("CD"."FR_ID"="CV"."FR_ID"(+) AND "CD"."CUST_ID"="CV"."CUST_ID"(+))
   5 - filter("MGR_ID"='00001' OR  EXISTS (SELECT 0 FROM "ADMIN_AUTH_MANAGE_ACCOUNT"
	      "ADMIN_AUTH_MANAGE_ACCOUNT" WHERE "USER_ID"=:B1 AND "MANAGE_ID"='00001'))
   6 - filter("FR_ID"='15601')
   7 - access("MANAGE_ID"='00001' AND "USER_ID"=:B1)
   8 - access("ITEM_1"="CD"."CUST_ID")
  10 - filter("MGR"."MGR_ID"='00001' OR  EXISTS (SELECT 0 FROM "ADMIN_AUTH_MANAGE_ACCOUNT"
	      "ADMIN_AUTH_MANAGE_ACCOUNT" WHERE "USER_ID"=:B1 AND "MANAGE_ID"='00001'))
  12 - access("MANAGE_ID"='00001' AND "USER_ID"=:B1)
  13 - filter("CD"."FR_ID"='15601')

34 rows selected.



SELECT A.*
  FROM (SELECT CD.*,
               nvl(CV.SUM_CI_BALANCE, 0) as SUM_CI_BALANCE,
               nvl(CV.SUM_LN_BALANCE, 0) as SUM_LN_BALANCE
          FROM OCRM_F_CI_CUST_DESC CD
          left join (select cust_id,
                           FR_ID,
                           sum(CI_BALANCE) as sum_CI_BALANCE,
                           sum(LN_BALANCE) as sum_LN_BALANCE
                      from OCRM_F_CI_CUST_VIEW
                     where 1 = 1
                       and FR_ID = '15601'
                              and MGR_ID in (
                              select '00001' from dual
                              union 
                              SELECT USER_ID
                               FROM ADMIN_AUTH_MANAGE_ACCOUNT
                              WHERE MANAGE_ID = '00001'     
                     group by cust_id, FR_ID) CV
            on CD.Cust_Id = CV.cust_id
           and CD.Fr_Id = CV.fr_id
         WHERE 1 = 1
           and CD.FR_ID = '15601') A
 where 1 = 1
   AND ((EXISTS
        (SELECT 1
            FROM OCRM_F_CI_BELONG_CUSTMGR MGR
           WHERE MGR.CUST_ID = A.CUST_ID
             /*AND (MGR.MGR_ID = '00001' OR
                 MGR.MGR_ID IN (SELECT USER_ID
                                   FROM ADMIN_AUTH_MANAGE_ACCOUNT
                                  WHERE MANAGE_ID = '00001'))*/
                           and MGR_ID in (select '00001' from dual
                              union 
                              SELECT USER_ID
                               FROM ADMIN_AUTH_MANAGE_ACCOUNT
                              WHERE MANAGE_ID = '00001'
                              ))             
                                  ))
 ORDER BY to_number(SUM_CI_BALANCE) DESC, to_number(SUM_LN_BALANCE) DESC