xzh_dz created CALCITE-4296:
-------------------------------

             Summary: Materialization recognition fail, cannot match Calc on 
top of materialized view
                 Key: CALCITE-4296
                 URL: https://issues.apache.org/jira/browse/CALCITE-4296
             Project: Calcite
          Issue Type: Wish
            Reporter: xzh_dz


MaterializedViewSubstitutionVisitorTest
{code:java}
// code placeholder
@Test void test() {
  String mv = ""
      + "select sum(\"salary\"), \"deptno\"\n"
      + "from \"emps\"\n"
      + "group by \"deptno\"";
  String query = ""
      + "select \"deptno\"\n"
      + "from \"emps\"\n"
      + "group by \"deptno\"";
  sql(mv, query).ok();
}
{code}
exception:
{code:java}
// code placeholder
java.lang.AssertionError: Materialized view failed to be matched by optimized 
results:java.lang.AssertionError: Materialized view failed to be matched by 
optimized results: at 
org.apache.calcite.test.AbstractMaterializedViewTest.checkMaterialize(AbstractMaterializedViewTest.java:112)
 at 
org.apache.calcite.test.AbstractMaterializedViewTest.access$000(AbstractMaterializedViewTest.java:64)
 at 
org.apache.calcite.test.AbstractMaterializedViewTest$Sql.ok(AbstractMaterializedViewTest.java:226)
 at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627) at 
org.apache.calcite.util.ImmutableBeans.lambda$makeDef$3(ImmutableBeans.java:291)
 at 
org.apache.calcite.util.ImmutableBeans$BeanImpl.invoke(ImmutableBeans.java:481) 
at com.sun.proxy.$Proxy12.ok(Unknown Source)
{code}



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