On Sat, Apr 30, 2011 at 9:21 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> - it would require a query in which
> every relation is linked to every other relation by a join clause.
> But that *can* happen (remember that clauses generated by transitive
> equality do count).
It sounds like you're describing precisely a "star schema" join which
isn't an uncommon design pattern at all.
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