Purge Cache by user

Is there a command available to purge cache by user? something like "SAPurgeCacheByUser"
In the documentation the following comands are available for purging the cache
1. SAPurgeCacheByQuery
2. SAPurgeCacheByTable
3. SAPurgeAllCache
4. SAPurgeCacheByDatabase
The cache entries can be viewed by user in the cache Manager from Adminisdtrator tool... I wonder why there is no command available to do the same from the scripts...
Currently I have setup the purge at the physical table level using the UET table (Event Polling table) that gets inserted with entries based on ETL jobs.
We have requirements to purge cache entries for specific requests (that take lot of time to run) monthly, and still continue to clear cache generated from adhoc analysis requests on a daily basis...
I seems like I'm left with only one appraoch to clear the cache using "SAPurgeCacheByQuery" by generating scripts that will capture the queries for which the cache needs to be purged...
If anyone has an alternative (easier) method... please suggest..
Thanks
Sundar

Okay, let me try to explain what I'm looking for...
Current setup...
We are purging the entire cache daily at a physical table level using the Event Poll table that is setup to get inserted with physical table names based on the ETL routines. If the Dim or Fact is inserted/updated by the daily loads then I insert a row into the event polling "UET" table with the physical table name of the dim or fact. OBIEE server is set to poll the UET every hour and when it finds an entry for a physical table, it clears all the caches associated with the physical table.
I'm looking for....
I have some fact tables that are very large and few queries to report at monthly or yearly level are not performaning well, so I'm looking for ways to retain the cache for specific requests which does not need the incremental daily changes to the facts/dims. Rest of the cache entries created by adhoc quering through answers can continue to be purged on a daily basis.
To be able to achive this flexibility, I need to do the following
1. Remove the cache purging based on physical table that is setup now based on UET table polling from OBIEE server...
2. Identify those requests that need to be retained for a month or a week (typically these are used in dashboards and some monthly or weekly runs identified by users) These reports need not change until the next month or week... even though the fact and dims are loaded on a daily basis...
3. Purge all the cache entries except for those request that are identified as weekly or monthly refresh rates...
I was thinking that if I schedule and run those monthly or weekly request for seeding the cache with Administrator login then all I have to do is purge rest of the cache entries that are run by Non Administrators....
Ofcourse this is not a complete solution as I need to be able to differntiate between a weekly and monthly requests...
Hope this explaination helps, if not, let me know, I can try to provide more details....
I appreciate you taking time to understand the question and try to help...
Thanks
Sundar

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Every time I start up Adobe Bridge, I get an error message which reads, "Bridge encountered a problem and its unable to read the cache. Please try purging the central cache in Cache Preferences to correct."
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!http://i47.tinypic.com/ddzwjt.png!
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!http://i48.tinypic.com/2qi01sm.png!
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!http://i47.tinypic.com/1r7xcp.png!
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!http://i48.tinypic.com/xaqclc.png!
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Supply pertinent information for quicker answers
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Purge Cache by user

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