A question on the empty section 'Custom Join Condition' in the Advanced Data Mapping - if I have two tables, say Company and DailyStockPrice (which has volume, open, close columns), it is easy to define a relation to get *all* the daily prices for a particular company, but what if I want to retrieve only the prices at the end of a week or a month. The sql is fairly straightforward (involving subqueries), but how can I setup a mapping to include this (likely) textual sql as the join condition?

Robert



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