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https://issues.apache.org/jira/browse/CALCITE-4374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis updated CALCITE-4374:
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Fix Version/s: 1.27.0
> 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
> Labels: pull-request-available
> Fix For: 1.27.0
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> 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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