danny0405 commented on a change in pull request #1215: [CALCITE-3068]
testSubprogram() does not test whether subprogram gets re-executed
URL: https://github.com/apache/calcite/pull/1215#discussion_r285326303
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File path: core/src/test/java/org/apache/calcite/test/HepPlannerTest.java
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@@ -251,14 +251,15 @@ private void assertIncludesExactlyOnce(String message,
String digest, String sub
subprogramBuilder.addMatchOrder(HepMatchOrder.TOP_DOWN);
subprogramBuilder.addMatchLimit(1);
subprogramBuilder.addRuleInstance(ProjectToCalcRule.INSTANCE);
+ subprogramBuilder.addRuleInstance(FilterToCalcRule.INSTANCE);
subprogramBuilder.addRuleInstance(CalcMergeRule.INSTANCE);
HepProgramBuilder programBuilder = HepProgram.builder();
programBuilder.addSubprogram(subprogramBuilder.build());
checkPlanning(
programBuilder.build(),
- "select upper(ename) from (select lower(ename) as ename from emp)");
+ "select upper(ename) from (select lower(ename) as ename from emp where
empno = 100)");
Review comment:
I mostly +1 on this, but we better have a way to detect that the subProgram
really fired 2 times, or we still cannot find the bug if someone breaks the
rule and this test fire 1 times but still got passed.
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