[jira] [Created] (CALCITE-4198) Query contains AVG function, materialized view contains SUM and COUNT functions, and materialized recognition fails

["xzh_dz (Jira)" <ji...@apache.org>]

xzh_dz created CALCITE-4198:
-------------------------------

             Summary: Query contains AVG function, materialized view contains SUM and COUNT functions, and materialized recognition fails
                 Key: CALCITE-4198
                 URL: https://issues.apache.org/jira/browse/CALCITE-4198
             Project: Calcite
          Issue Type: Wish
            Reporter: xzh_dz


There is a semantic equivalent case, which should be able to materialize and identify successfully, materialized view can express the calculation logic of query,but failed. This case can be reproduced as below.
{code:java}
// MaterializedViewSubstitutionVisitorTest
@Test void testAvgMvMatch() {
  sql(
      "select \"empid\", sum(\"salary\"), count(\"salary\") from \"emps\" where \"empid\" > 10 group by \"empid\"",
      "select \"empid\", avg(\"salary\") from \"emps\" where \"empid\" > 10 group by \"empid\"")
      .ok();
}
{code}
The error message：
{code:java}
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:227) at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627) at org.apache.calcite.util.ImmutableBeans.lambda$makeDef$3(ImmutableBeans.java:275) at org.apache.calcite.util.ImmutableBeans$BeanImpl.invoke(ImmutableBeans.java:446) at com.sun.proxy.$Proxy12.ok(Unknown Source) at org.apache.calcite.test.MaterializedViewSubstitutionVisitorTest.testAvgMvMatch(MaterializedViewSubstitutionVisitorTest.java:101) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498)
{code}



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