OBIEE bypasses smaller aggregate table and queries largest aggregate table
Hello,
Currently we are experiencing something strange regarding queries that are generated.
Scenario:
We have 1 detail table and 3 aggregate tables in the RPD. For this scenario I will only refer to 2 of the Aggregates.
Aggregate 1 (1 million rows):
Contains data - Division, Sales Rep, Month, Sales
Aggregate 2 (13 milliion rows):
Contains data - Division, Product, Month, Sales
Both tables are set at the appropriate dimension levels in the Business Model. Row counts have been updated in the physical layer in the RPD.
When we create an answers query that contains Division, Month and Sales, one would think that OBIEE would query the smaller and faster of the two tables. However, obiee wants to query the table with 13 million records completely bypassing the smaller table. If we make the larger aggregate inactive, then OBIEE queries the smaller table. We can't figure out why OBIEE wants to immediately go to the larger table.
Has anyone experienced something such as this? Any help would be greatly appreciated.
Edited by: gwb on Aug 19, 2009 7:45 AM
Have you try to change the sort order of the logical table source in your logical table ?
!http://gerardnico.com/wiki/_media/temp/obiee_logical_table_sources_sort.jpg!
Set the Aggregate 1 first.
Cheers
Nico
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BUKRS, BELNR and GJAHR so I think you should use all key fields in your SELECT statement:
select single * from BKPF into I_BKPF
where BUKRS = l_s_DTFIAP_3-BUKRS and
BELNR = l_s_DTFIAP_3-BELNR and
GJAHR = l_s_DTFIAP_3-GJAHR.
And why do you test SY-SUBRC after CLEAR ?
Your IF statement should be after SELECT...
And last but not least when you are using SELECT SINGLE you always get only one record so what is the purpose of LOOP statement ?
Try following code:
case I_datasource.
WHEN '0FI_AP_4'.
loop at C_t_data into l_s_DTFIAP_3.
l_tabix = sy-tabix.
select single * from BKPF into I_BKPF
where BUKRS = l_s_DTFIAP_3-BUKRS and
BELNR = l_s_DTFIAP_3-BELNR and
GJAHR = l_s_DTFIAP_3-GJAHR.
if sy-subrc = 0.
if (I_BKPF-TCODE = FV50) OR
(I_BKPF-TCODE = FB01).
I_FINAL-BELNR = I_BKPF-BELNR
modify I_FINAL.
endif.
modify C_t_data from l_s_DTFIAP_3 index l_tabix.
endif.
endloop.
endcase.
regards
Krzys
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