silundong commented on code in PR #4392:
URL: https://github.com/apache/calcite/pull/4392#discussion_r2137018998
##########
core/src/test/resources/org/apache/calcite/test/RelOptRulesTest.xml:
##########
@@ -1526,6 +1526,33 @@ LogicalJoin(condition=[=($1, $12)], joinType=[semi])
LogicalTableScan(table=[[scott, DEPT]])
LogicalTableScan(table=[[scott, EMP]])
LogicalTableScan(table=[[scott, BONUS]])
+]]>
+ </Resource>
+ </TestCase>
+ <TestCase name="testCartesianProductForDphyp">
+ <Resource name="sql">
+ <![CDATA[select emp.empno from emp_address, emp, emp_b, dept where
emp_address.empno = emp.empno and dept.deptno = emp.deptno]]>
+ </Resource>
+ <Resource name="planBefore">
+ <![CDATA[
+LogicalProject(EMPNO=[$3])
+ HyperGraph(edges=[{0}——[INNER, =(vertex(0)_field(0),
vertex(1)_field(0))]——{1},{0, 1}——[INNER, true]——{2},{1}——[INNER,
=(vertex(3)_field(0), vertex(1)_field(7))]——{3}])
Review Comment:
Do you mean the hyperedge print? I think that input doesn't necessarily
contain just a table, may be it is a subplan with agg-join-(t1,t2) or
union-(t1,t2...) etc. So maybe it would be more intuitive to print the input
index?
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