OBIEE 10g - high compilation time

Hi All,
While doing performance tuning for one of the request in OBIEE 10g, I realized that the compilation time for the request is very high (almost 50% of total time). Is there any way I can reduce it?
Here's summary stats from the log.
+++administrator:111e0000:111e0024:----2012/02/22 15:28:29
-------------------- Logical Query Summary Stats: Elapsed time 105, Response time 105, Compilation time 50 (seconds)
Thanks in advance.

Hi,
Check for the indexes. And if its there then try to change the order(ie the order of the columns in the index) with which the query uses the indexes.
Otherwise you can also make the report run by default in any of the default pages(making it hidden). So what happens is the report gets cached, so when the user tries to view the report, it happens to come fast.
Regards
MuRam.
NOTE-Please mention if this worked/ still facing issue, so that it could be useful for others will similar issue.

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