OBIEE 11g caching question - cross database joins

Hi, I'm seeing something strange (a.k.a. not wanted) in OBIEE (11g, not sure that version matters).
I have a simple data mart that contains spend information. The supplier dimension contains keys that can be used to join it to detailed supplier information and supplier address information in our ERP system (that sits in a different database / on a different box). In the OBIEE physical layer I've created a cross database join between the supplier dimension table and the ERP tables that contain the address info.
Here's the odd behavior I'm seeing. If I write an answers request to select the supplier, some address info, and total spend for fiscal year 2010, I'm seeing OBIEE fire off two queries (this I expect):
A) Select supplier, address key, and total spend for fiscal year = 2010 against the spend mart
B) select address_key and associated address info against the ERP system (no limit on this query, it pulls back all rows from the address table)
OBIEE then does an internal join itself and serves up the results, everything is correct. But here's what's "wrong" - if I then run the exact same answers request, but change the fiscal year to 2009, I again see OBIEE firing off the two queries. What I expected and/or want to see is that, since the entire result set from query #B doesn't change at all, that it wouldn't have to rerun this query. However, it seems to be.
Is there any way to get #B to cache so that, for any subsequent query that contains supplier address info, OBIEE can pull it from cache instead of rerunning the query (which is pretty slow)? I really thought it would do that, but it doesn't seem to be.
Thanks!
Scott

Hi,
Could you give a bit more of context for this case? The table in SQL server; Is it a dimension and the one in Oracle DB is a fact? I am guessing, you have set up the driving table here. Have you given a try taking it off, and let BI Server do the filter in memory?
-Dhar

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Hi,
Could you give a bit more of context for this case? The table in SQL server; Is it a dimension and the one in Oracle DB is a fact? I am guessing, you have set up the driving table here. Have you given a try taking it off, and let BI Server do the filter in memory?
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OBIEE 11g caching question - cross database joins

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