[GitHub] [calcite] yanlin-Lynn commented on pull request #2117: [CALCITE-4182] Support mv recognition when query has constant filter for missing columns in group by list of mv

[GitBox <gi...@apache.org>]

yanlin-Lynn commented on pull request #2117:
URL: https://github.com/apache/calcite/pull/2117#issuecomment-686428827


   > Can this case be covered ？
   > 
   > ```
   > @Test void testConstantFilterInAgg2() {
   >     final String mv = ""
   >         + "select \"name\", \"deptno\", count(distinct \"commission\") as cnt\n"
   >         + "from \"emps\"\n"
   >         + " group by \"name\", \"deptno\"";
   >     final String query = ""
   >         + "select \"deptno\", count(distinct \"commission\") as cnt\n"
   >         + "from \"emps\" where \"name\" = 'hello' and \"deptno\" = 1\n"
   >         + "group by \"deptno\"";
   >     sql(mv, query).withChecker(
   >         resultContains(""
   >             + "LogicalCalc(expr#0..2=[{inputs}], expr#3=['hello':VARCHAR], expr#4=[CAST($t0)"
   >             + ":VARCHAR], expr#5=[=($t3, $t4)], deptno=[$t1], CNT=[$t2], $condition=[$t5])\n"
   >             + "  EnumerableTableScan(table=[[hr, MV0]])")).ok();
   >   }
   > ```
   
   yes


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