Gourav Kumar <gourav1905@gmail.com> writes: > My objective is to construct join graph from a given query. > A join graph, has a node for each relation involved in a join, and an edge > between two relations if they share a join predicate among them.
Hm, well, you could adapt the logic in have_relevant_joinclause() and have_relevant_eclass_joinclause(). Or maybe you could just use them as-is ... depends on what you have in mind to do with join clauses that mention 3 or more relations.
