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https://issues.apache.org/jira/browse/CALCITE-4909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ziwei Liu updated CALCITE-4909:
-------------------------------
Description:
sql("select 'a',\"empid\",\"deptno\",sum(\"salary\") as s from \"emps\" group
by \"empid\",\"deptno\"", "select sum(\"salary\") +1 as s,\"deptno\" from
\"emps\" group by \"deptno\"").noMat();
In substitute processing, this case will not be rewritten by materialized view
because there is a Calc RelNode on target's agg. We may need a rule
AggregateOnCalcToCalcOnAggregateUnifyRule to handle this condition.
was:
sql("select 'a',\"empid\",\"deptno\",sum(\"salary\") as s from \"emps\" group
by \"empid\",\"deptno\"", "select sum(\"salary\") +1 as s,\"deptno\" from
\"emps\" group by \"deptno\"").noMat();
In substitute processing, this case will not be rewritten by materialized view
because there is a calc on target's agg. We may need a rule
AggregateOnCalcToCalcOnAggregateUnifyRule to handle this condition.
> In SubstituteVisitor, if there is a calc on target's agg, the query will not
> be rewritten by materialized view.
> ---------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4909
> URL: https://issues.apache.org/jira/browse/CALCITE-4909
> Project: Calcite
> Issue Type: Improvement
> Reporter: Ziwei Liu
> Assignee: Ziwei Liu
> Priority: Major
>
> sql("select 'a',\"empid\",\"deptno\",sum(\"salary\") as s from \"emps\" group
> by \"empid\",\"deptno\"", "select sum(\"salary\") +1 as s,\"deptno\" from
> \"emps\" group by \"deptno\"").noMat();
> In substitute processing, this case will not be rewritten by materialized
> view because there is a Calc RelNode on target's agg. We may need a rule
> AggregateOnCalcToCalcOnAggregateUnifyRule to handle this condition.
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