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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><a href="http://jira.pentaho.com/browse/MONDRIAN-1257">MONDRIAN-1257</a> describes a currently unsupported use case in which a restriction on one dimension impacts the members available in another dimension. For example, if I define a role with access to only a single member of the [Market] dimension, I’d like to also restrict the [Customer] dimension down to just those members that have data within the permitted [Market] member.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m curious what people think about this. I have a couple half- baked thoughts:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Allow MDX sets within role definitions. This could allow a filter definition to restrict Customers who have data within a Market. SSAS allows member set restrictions like this.<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Enforce restrictions based on relationships within a dimension. If Market and Customer were both attributes within a single dimension, and there was a defined relationship between the two attributes (e.g. each customer is in exactly one market), then Mondrian could implicitly restrict customer based on market. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The expectation in the ticket is that the customer restriction would just happen. I’m not sure that’s practical, though--automatically handling cross-dim restrictions seems like a huge overhead, since we’d need to effectively fire native non empty queries for each dimension. We wouldn’t know up front what relationships are relevant.<o:p></o:p></p></div></body></html>