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https://issues.apache.org/jira/browse/CALCITE-784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haisheng Yuan resolved CALCITE-784.
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Resolution: Invalid
Closing it, since it should be done on physical operators, not logical
operators.
> LogicalAggregate's create method discards any collation traits from input
> -------------------------------------------------------------------------
>
> Key: CALCITE-784
> URL: https://issues.apache.org/jira/browse/CALCITE-784
> Project: Calcite
> Issue Type: Bug
> Components: core, stream
> Reporter: Milinda Pathirage
> Priority: Major
> Attachments: CALCITE-784-0.patch
>
>
> LogicalAggregate's create method gets the trait set of Convention.NONE from
> input's cluster, but doesn't use any trait information from the input. But to
> have proper collation trait set we need to consider input's collation trait
> set when inferring LogicalAggregate's traits.
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