gnirmal1 commented on code in PR #4552:
URL: https://github.com/apache/calcite/pull/4552#discussion_r2373931747
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core/src/test/java/org/apache/calcite/test/RelOptRulesTest.java:
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@@ -277,6 +277,55 @@ private static boolean skipItem(RexNode expr) {
.check();
}
+ private HepProgram createHypergraphProgram() {
+ return new HepProgramBuilder().addMatchOrder(HepMatchOrder.BOTTOM_UP)
+ .addRuleInstance(CoreRules.JOIN_PROJECT_RIGHT_TRANSPOSE)
+ .addRuleInstance(CoreRules.JOIN_PROJECT_LEFT_TRANSPOSE)
+ .addRuleInstance(CoreRules.PROJECT_MERGE)
+ .addRuleInstance(CoreRules.PROJECT_REMOVE)
+ .addRuleInstance(CoreRules.JOIN_TO_HYPER_GRAPH)
+ .build();
+ }
+
+ /** Test case for <a
href="https://issues.apache.org/jira/browse/CALCITE-7191";>[CALCITE-7191]
+ * Hypergraph creation with incorrect hyperedges</a>. */
+ @Test void testHypergraph0() {
+ HepProgram program = createHypergraphProgram();
+ String innerJoinSql = "select a.ename, bc.name from bonus a inner join "
+ + "(select b.empno, b.ename, c.name from emp b inner join dept c on
b.deptno = c.deptno) bc "
+ + "on a.ename = bc.ename";
+
+ sql(innerJoinSql).withPre(program)
+ .withRule(CoreRules.HYPER_GRAPH_OPTIMIZE, CoreRules.PROJECT_MERGE)
+ .check();
+ }
+
Review Comment:
The same query has been duplicated for testHypergraph1 and testHypergraph2
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