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https://issues.apache.org/jira/browse/CALCITE-3590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shuo Cheng updated CALCITE-3590:
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Description:
Currently in CALCITE-482, hints are only supported for Project, Join and
TableScan. It's also necessary to support hints for Aggregate, to enable fine
grained Aggregate configuration, e.g., two-stage-aggregation.
SELECT /*+ TWO_STAGE_AGG(true) */ dep_id, grade,
avg(annual_salary), min(annual_salary), max(annual_salary)FROM T
GROUP BY dep_id, grade;
> Support SQL hints for Aggregate.
> --------------------------------
>
> Key: CALCITE-3590
> URL: https://issues.apache.org/jira/browse/CALCITE-3590
> Project: Calcite
> Issue Type: Sub-task
> Components: core
> Affects Versions: 1.21.0
> Reporter: Shuo Cheng
> Priority: Major
> Fix For: 1.22.0
>
>
> Currently in CALCITE-482, hints are only supported for Project, Join and
> TableScan. It's also necessary to support hints for Aggregate, to enable fine
> grained Aggregate configuration, e.g., two-stage-aggregation.
> SELECT /*+ TWO_STAGE_AGG(true) */ dep_id, grade,
> avg(annual_salary), min(annual_salary), max(annual_salary)FROM T
> GROUP BY dep_id, grade;
>
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