Strange issue with Multi-Table LTS and report filters (10g)

Hi,
I am having some troubles with the following scenario:
I have a large flattened table that is being used as both Fact and Dimension in the BMM layer. I also have another table that contains some supplementary measures needed by some reports.
Logical Fact table has an LTS that consists of the 2 tables which are joined on 2 columns (eg, a.col1 = b.col1 and a.col2 = b.col2, etc). The columns used in the join also exist in the logical dimension which uses the same flattened table. I use these columns in my report filters.
I have created some Fact measures, some from each source inside the LTS.
What's happening is that when I am using this model in Answers, the query being generated is applying my filtering conditions to both tables, which seems unnecessary to me since they are joined on these columns.
i.e.,
select *
from table1 a, table2 b
where a.col1 = b.col1
and a.col2 = b.col2
and a.col1 = 'Value 1'
and a.col2 = 'Value 2'
and b.col1 = 'Value 1'
and b.col1 = 'Value 2'
The last two lines in the query above should not be happening. I have not mapped these columns anywhere in the BMM to table2 (other than physical layer join), only to table1.
For clarification, it's not hurting the end results from what I've seen, but it is adding additional filtering to the query that can increase overall cost, which I'm trying to avoid.
Any ideas/suggestions?
Thanks
Edited by: odinsride on Jan 31, 2012 5:03 PM

Hi,
I think this is a known issue. I think that the BI Server pulls in both the tables involved in the LTS for any query (Yes, even if the query has only one column from any of the tables in LTS) and so are the filters.
In this case, what I would suggest you is to create 2 LTS (probably 3). One for each physical table (that are being joined in the LTS) and one for both of them joined (may be inner/left/right) etc.
With this kind of setup, when there are reports for any particular column of this logical table, the BI Server can go and choose the corresponding LTS only. However, if there is a report with columns from both the tables, the BI Server would choose the LTS with the join.
Hope this helps.
Thank you,
Dhar

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    I [22/Jul/2013:15:16:44 -0400] [Job 139] Started backend /usr/lib/cups/backend/socket (PID 15826)
    I [22/Jul/2013:15:16:44 -0400] [Job 139] Completed successfully.
    ==============
    It only goes through 2 filters and prints just fine
    The system admin team has tried to re-install the printer driver but no luck.
    Any idea what could be the cause and how can fix it?
    Any pointers will be highly appreciated.
    Thanks
    Sunil Bhavsar

    Thanks Hussein.
    I will check the 2 options you recommended. At the same, I would like to test the direct print from the OS using pdftops utility.  But not sure how can I do that?
    The concurrent request creates the .tmp file under APPLTMP and pass that as the parameter while printing such requests. But if we need to test the .PDF output using pdftops directly, what should be the syntax? Or I would say, what should be the input file and output file?
    e.g.
    pdftops {infile} {outfile}
    I have got the .PDF output under $APPLCSF/$APPLOUT. But from one of the failed request logs, I see the system passes both as .tmp. If we need to test this directly, is there any way?
    In the meantime, I will check the debug logs option and update if it provides any additional information.
    Regards,
    Sunil

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