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https://issues.apache.org/jira/browse/CALCITE-777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aman Sinha reassigned CALCITE-777:
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Assignee: Aman Sinha (was: Julian Hyde)
> IS NOT NULL filter is incorrectly dropped for aggregates and window functions
> -----------------------------------------------------------------------------
>
> Key: CALCITE-777
> URL: https://issues.apache.org/jira/browse/CALCITE-777
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.3.0-incubating
> Reporter: Aman Sinha
> Assignee: Aman Sinha
>
> The below plans show the IS NOT NULL filter is incorrectly dropped.
> {code}
> select wsum from (select sum(sal) over (partition by deptno) as wsum from
> emp) where wsum is not null;
> LogicalProject(WSUM=[$0])
> LogicalProject(WSUM=[SUM($5) OVER (PARTITION BY $7 RANGE BETWEEN UNBOUNDED
> PRECEDING AND UNBOUNDED FOLLOWING)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> {code}
> {code}
> select wsum from (select sum(sal) as wsum from emp group by deptno) where
> wsum is not null;
> LogicalProject(WSUM=[$0])
> LogicalProject(WSUM=[$1])
> LogicalAggregate(group=[{0}], WSUM=[SUM($1)])
> LogicalProject(DEPTNO=[$7], SAL=[$5])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> {code}
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