title: Schema-agnostic OLAP-like tool?
body: <p>Do there exist any (ideally free or open-source) tools for performing OLAP analyses on <em>arbitrary</em> tables in a relational database, without requiring any advance specification of dimensional hierarchies, cardinalities, or any other meta-information about the table beyond what can be extracted automatically from the table itself?</p>
  
  <p>My inability to Google for anything like what I'm describing makes me suspect I'm using incorrect terminology and what I'm searching for isn't properly considered to be OLAP. If this is the case, what I specifically want is anything that would let technically unsophisticated users create cross-tab or contingency table aggregations using tables in a relational DB without needing to write elaborate SQL queries.</p>
  
  <p>Or, in other words, I'd like something that mimics Excel's PivotTables on a larger scale. I appreciate that Excel does indeed generate extensive caches behind the scenes when you make a PivotTable, but it does this without the user having to explain to it which caches need creating. This is the functionality I'm trying to find elsewhere, if it exists.</p>