Preformance problem - Oracle does not choose the Materialized view

Hi,
Version 10204
I have the following Materialized view :
CREATE MATERIALIZED VIEW CRM.MV2_TUDWH_CRM_1201
TABLESPACE DW_LARGE
NOCACHE
NOLOGGING
COMPRESS
PARALLEL ( DEGREE DEFAULT INSTANCES DEFAULT )
BUILD IMMEDIATE
REFRESH COMPLETE ON DEMAND
WITH PRIMARY KEY
ENABLE QUERY REWRITE        <<<<<<<======
AS
SELECT DISTINCT CRM.CI_CUST_INFO.NAP_INT_CUST_NUM
  FROM (   CRM.CI_CUST_INFO
        LEFT OUTER JOIN
           CRM.CM_CASE_DIM
        ON (CRM.CI_CUST_INFO.BO_ID = CRM.CM_CASE_DIM.BO_ID_CUST));When running the following statment , the MV is used as you can see from 10053 trace file:
Current SQL statement for this session:                                                                                            
EXPLAIN PLAN FOR                                                                                                                   
SELECT DISTINCT CRM.CI_CUST_INFO.NAP_INT_CUST_NUM                                                                                  
  FROM (   CRM.CI_CUST_INFO                                                                                                        
        LEFT OUTER JOIN                                                                                                            
           CRM.CM_CASE_DIM                                                                                                         
        ON (CRM.CI_CUST_INFO.BO_ID = CRM.CM_CASE_DIM.BO_ID_CUST))                                                                  
============                                                                                                                       
Plan Table                                                                                                                         
============                                                                                                                       
----------------------------------------------------------------+-----------------------------------+-------------------------+    
| Id  | Operation                           | Name              | Rows  | Bytes | Cost  | Time      |  TQ  |IN-OUT|PQ Distrib |    
----------------------------------------------------------------+-----------------------------------+-------------------------+    
| 0   | SELECT STATEMENT                    |                   |       |       |    64 |           |      |      |           |    
| 1   |  PX COORDINATOR                     |                   |       |       |       |           |      |      |           |    
| 2   |   PX SEND QC (RANDOM)               | :TQ10001          | 4694K |   28M |    64 |  00:00:01 |:Q1001| P->S |QC (RANDOM)|    
| 3   |    HASH UNIQUE                      |                   | 4694K |   28M |    64 |  00:00:01 |:Q1001| PCWP |           |    
| 4   |     PX RECEIVE                      |                   | 4694K |   28M |    48 |  00:00:01 |:Q1001| PCWP |           |    
| 5   |      PX SEND HASH                   | :TQ10000          | 4694K |   28M |    48 |  00:00:01 |:Q1000| P->P |HASH       |    
| 6   |       PX BLOCK ITERATOR             |                   | 4694K |   28M |    48 |  00:00:01 |:Q1000| PCWC |           |    
| 7   |        MAT_VIEW REWRITE ACCESS FULL | MV2_TUDWH_CRM_1201| 4694K |   28M |    48 |  00:00:01 |:Q1000| PCWP |           |    
----------------------------------------------------------------+-----------------------------------+-------------------------+    
Predicate Information:                                                                                                             
7 - access(:Z>=:Z AND :Z<=:Z)                                                                                                      
Content of other_xml column                                                                                                        
===========================                                                                                                        
  db_version     : 10.2.0.4                                                                                                        
  parse_schema   : SYS                                                                                                             
  plan_hash      : 4066877073                                                                                                      
  Outline Data:                                                                                                                    
  /*+                                                                                                                              
    BEGIN_OUTLINE_DATA                                                                                                             
      IGNORE_OPTIM_EMBEDDED_HINTS                                                                                                  
      OPTIMIZER_FEATURES_ENABLE('10.2.0.4')                                                                                        
      OPT_PARAM('optimizer_dynamic_sampling' 3)                                                                                    
      OPT_PARAM('star_transformation_enabled' 'true')                                                                              
      ALL_ROWS                                                                                                                     
      OUTLINE_LEAF(@"SEL$C0C89B4D")                                                                                                
      REWRITE(@"SEL$9E43CB6E" "MV2_TUDWH_CRM_1201")                                                                                
      OUTLINE(@"SEL$9E43CB6E")                                                                                                     
      MERGE(@"SEL$58A6D7F6")                                                                                                       
      OUTLINE(@"SEL$3")                                                                                                            
      OUTLINE(@"SEL$58A6D7F6")                                                                                                     
      MERGE(@"SEL$1")                                                                                                              
      OUTLINE(@"SEL$2")                                                                                                            
      OUTLINE(@"SEL$1")                                                                                                            
      FULL(@"SEL$C0C89B4D" "MV2_TUDWH_CRM_1201"@"SEL$030DBFD9")                                                                    
    END_OUTLINE_DATA                                                                                                               
                        But when running more complex statment - the MV does not even considered by the optimizer as an option , and does not exists in the 10053 trace file:
Current SQL statement for this session:
EXPLAIN PLAN FOR
  SELECT CRM.CI_CUST_INFO.NAP_INT_CUST_NUM
    FROM (   CRM.CI_CUST_INFO
          LEFT OUTER JOIN
             CRM.CM_CASE_DIM
          ON (CRM.CI_CUST_INFO.BO_ID = CRM.CM_CASE_DIM.BO_ID_CUST))
   WHERE (CRM.CM_CASE_DIM.FIRST_PROVIDER_GRP_ID IN
             ('2565', '2611', '1190', '2610', '2612')
          AND (CRM.CM_CASE_DIM.ROW_ADDED_DTTM >= (SYSDATE - 60)))
ORDER BY CRM.CI_CUST_INFO.NAP_INT_CUST_NUM
============
Plan Table
============
--------------------------------------------------+-----------------------------------+-------------------------+---------------+
| Id  | Operation                   | Name        | Rows  | Bytes | Cost  | Time      |  TQ  |IN-OUT|PQ Distrib | Pstart| Pstop |
--------------------------------------------------+-----------------------------------+-------------------------+---------------+
| 0   | SELECT STATEMENT            |             |       |       |   13K |           |      |      |           |       |       |
| 1   |  PX COORDINATOR             |             |       |       |       |           |      |      |           |       |       |
| 2   |   PX SEND QC (ORDER)        | :TQ10002    |     1 |    56 |   13K |  00:01:26 |:Q1002| P->S |QC (ORDER) |       |       |
| 3   |    SORT ORDER BY            |             |     1 |    56 |   13K |  00:01:26 |:Q1002| PCWP |           |       |       |
| 4   |     PX RECEIVE              |             |     1 |    56 |   13K |  00:01:26 |:Q1002| PCWP |           |       |       |
| 5   |      PX SEND RANGE          | :TQ10001    |     1 |    56 |   13K |  00:01:26 |:Q1001| P->P |RANGE      |       |       |
| 6   |       HASH JOIN             |             |     1 |    56 |   13K |  00:01:26 |:Q1001| PCWP |           |       |       |
| 7   |        PX RECEIVE           |             |     1 |    31 |   11K |  00:01:12 |:Q1001| PCWP |           |       |       |
| 8   |         PX SEND BROADCAST   | :TQ10000    |     1 |    31 |   11K |  00:01:12 |:Q1000| P->P |BROADCAST  |       |       |
| 9   |          PX BLOCK ITERATOR  |             |     1 |    31 |   11K |  00:01:12 |:Q1000| PCWC |           | 1     | 8     |
| 10  |           TABLE ACCESS FULL | CM_CASE_DIM |     1 |    31 |   11K |  00:01:12 |:Q1000| PCWP |           | 1     | 8     |
| 11  |        PX BLOCK ITERATOR    |             | 4694K |  115M |  2121 |  00:00:14 |:Q1001| PCWC |           | 1     | 6     |
| 12  |         TABLE ACCESS FULL   | CI_CUST_INFO| 4694K |  115M |  2121 |  00:00:14 |:Q1001| PCWP |           | 1     | 6     |
--------------------------------------------------+-----------------------------------+-------------------------+---------------+
Predicate Information:
6 - access("CI_CUST_INFO"."BO_ID"="CM_CASE_DIM"."BO_ID_CUST")
10 - access(:Z>=:Z AND :Z<=:Z)
10 - filter((INTERNAL_FUNCTION("CM_CASE_DIM"."FIRST_PROVIDER_GRP_ID") AND "CM_CASE_DIM"."ROW_ADDED_DTTM">=SYSDATE@!-60))
12 - access(:Z>=:Z AND :Z<=:Z)Can one suggested a reason why the optimized did not choose the m.v ?
After all as you can see the only change is adding more predicate to the statment , e.g:
WHERE (CRM.CM_CASE_DIM.FIRST_PROVIDER_GRP_ID IN
('2565', '2611', '1190', '2610', '2612')
AND (CRM.CM_CASE_DIM.ROW_ADDED_DTTM >= (SYSDATE - 60)))
ORDER BY CRM.CI_CUST_INFO.NAP_INT_CUST_NUM
Thanks

Hello Bob,
Thanks for your replay.
I just recreacted the MV and this time i REMOVED the DISTINCT and ADD two columns :
CREATE MATERIALIZED VIEW CRM.MV2_TUDWH_CRM_1201
TABLESPACE DW_LARGE
NOCACHE
NOLOGGING
COMPRESS
NOPARALLEL
BUILD IMMEDIATE
REFRESH COMPLETE ON DEMAND
WITH PRIMARY KEY
ENABLE QUERY REWRITE
AS
SELECT CRM.CI_CUST_INFO.NAP_INT_CUST_NUM,
       CRM.CM_CASE_DIM.FIRST_PROVIDER_GRP_ID,
       CRM.CM_CASE_DIM.ROW_ADDED_DTTM
  FROM (   CRM.CI_CUST_INFO
        LEFT OUTER JOIN
           CRM.CM_CASE_DIM
        ON (CRM.CI_CUST_INFO.BO_ID = CRM.CM_CASE_DIM.BO_ID_CUST));I rerun the first sql statment that in my first post.
What happen now is as followed :
- Optimizer choose to use MV , ONLY if i remove the DISTICT from the select statment.
- If add the DISTINCT to the select statment , oracle choose a diffrent plan.
Why ?
sql_id=ffr3mkc6z8rsv.
Current SQL statement for this session:
EXPLAIN PLAN FOR
SELECT DISTINCT CRM.CI_CUST_INFO.NAP_INT_CUST_NUM
  FROM (   CRM.CI_CUST_INFO
        LEFT OUTER JOIN
           CRM.CM_CASE_DIM
        ON (CRM.CI_CUST_INFO.BO_ID = CRM.CM_CASE_DIM.BO_ID_CUST))
============
Plan Table
============
---------------------------------------------------------+-----------------------------------+-------------------------+---------------+
| Id  | Operation                      | Name            | Rows  | Bytes | Cost  | Time      |  TQ  |IN-OUT|PQ Distrib | Pstart| Pstop |
---------------------------------------------------------+-----------------------------------+-------------------------+---------------+
| 0   | SELECT STATEMENT               |                 |       |       |   12K |           |      |      |           |       |       |
| 1   |  PX COORDINATOR                |                 |       |       |       |           |      |      |           |       |       |
| 2   |   PX SEND QC (RANDOM)          | :TQ10003        | 4691K |  197M |   12K |  00:01:19 |:Q1003| P->S |QC (RANDOM)|       |       |
| 3   |    HASH UNIQUE                 |                 | 4691K |  197M |   12K |  00:01:19 |:Q1003| PCWP |           |       |       |
| 4   |     PX RECEIVE                 |                 |   24M | 1030M |   12K |  00:01:18 |:Q1003| PCWP |           |       |       |
| 5   |      PX SEND HASH              | :TQ10002        |   24M | 1030M |   12K |  00:01:18 |:Q1002| P->P |HASH       |       |       |
| 6   |       HASH JOIN OUTER          |                 |   24M | 1030M |   12K |  00:01:18 |:Q1002| PCWP |           |       |       |
| 7   |        PX RECEIVE              |                 | 4694K |  115M |  2121 |  00:00:14 |:Q1002| PCWP |           |       |       |
| 8   |         PX SEND HASH           | :TQ10001        | 4694K |  115M |  2121 |  00:00:14 |:Q1001| P->P |HASH       |       |       |
| 9   |          PX BLOCK ITERATOR     |                 | 4694K |  115M |  2121 |  00:00:14 |:Q1001| PCWC |           | 1     | 6     |
| 10  |           TABLE ACCESS FULL    | CI_CUST_INFO    | 4694K |  115M |  2121 |  00:00:14 |:Q1001| PCWP |           | 1     | 6     |
| 11  |        BUFFER SORT             |                 |       |       |       |           |:Q1002| PCWC |           |       |       |
| 12  |         PX RECEIVE             |                 |   24M |  431M |   10K |  00:01:05 |:Q1002| PCWP |           |       |       |
| 13  |          PX SEND HASH          | :TQ10000        |   24M |  431M |   10K |  00:01:05 |      | S->P |HASH       |       |       |
| 14  |           INDEX FAST FULL SCAN | CM_CASE_DIM_IX_3|   24M |  431M |   10K |  00:01:05 |      |      |           |       |       |
---------------------------------------------------------+-----------------------------------+-------------------------+---------------+
Predicate Information:
6 - access("CI_CUST_INFO"."BO_ID"="CM_CASE_DIM"."BO_ID_CUST")
10 - access(:Z>=:Z AND :Z<=:Z)

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    - Problem: I have 1400 e-mails with attachments that need to be converted into pdf and the attachments cannot be embeded.
    System: PC Windows 7 using Acrobat X Prof. - Thank you!

    Hi ,
    There is an option of embedding index for faster search while converting email to a PDF .
    However I am not sure that will serve your purpose or not .
    I would recommend you to get in touch with Microsoft support as well .
    Meanwhile I'll work on it and get back to you in case I get a desired solution .
    Regards
    Sukrit Dhingra

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    Since I updated my 4S iphone to the latest iOS7 version, I can no longer close any of my apps.  As a result, all my apps remain open on my phone.  Even powering down and restarting does not solve the problem.  Specifically, when I double-click the start button, my open app icons display.  But when I hold my finger on an icon, the apps do not wiggle and display an "x" to close.  Any advice... thanks?!

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