Re: [HACKERS] How does postgres store the join predicate for a relation in a given query

[Tom Lane]

Gourav Kumar <gourav1...@gmail.com> writes:
> A Join clause/predicate will only mention 2 relations. It can't have 3 or
> more relations.

Really?  What of, say,

        select ... from a,b,c where (a.x + b.y) = c.z;

                        regards, tom lane


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