[jira] [Commented] (CALCITE-4374) Support materialized view recognition when query distinct aggregate on target GROUP BY column

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

    [ https://issues.apache.org/jira/browse/CALCITE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17225250#comment-17225250 ] 

Jiatao Tao commented on CALCITE-4374:
-------------------------------------

+1

> Support materialized view recognition when query distinct aggregate on target GROUP BY column
> ---------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-4374
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4374
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Wang Yanlin
>            Priority: Major
>
> When query distinct aggregate on the column, which is in the group by list of target.
> Materialized view recognition should success.
> See this case.
> {noformat}
> @Test void testQueryDistinctColumnInTargetGroupByList() {
>     final String mv = ""
>         + "select \"name\", \"deptno\" "
>         + "from \"emps\" group by \"name\", \"deptno\"";
>     final String query = ""
>         + "select \"name\", count(distinct \"deptno\")\n"
>         + "from \"emps\" group by \"name\"";
>     sql(mv, query).ok();
>   }
> {noformat}



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