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https://issues.apache.org/jira/browse/CALCITE-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-400:
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Summary: RelFieldTrimmer needs to handle cross Joins (was: RelField
Trimmer needs to handle cross Joins)
> RelFieldTrimmer needs to handle cross Joins
> -------------------------------------------
>
> Key: CALCITE-400
> URL: https://issues.apache.org/jira/browse/CALCITE-400
> Project: Calcite
> Issue Type: Bug
> Reporter: Laljo John Pullokkaran
> Assignee: Laljo John Pullokkaran
> Attachments: optiq-400.patch
>
>
> select R1.key from R1 Join R2 would result in field trimmer asking for
> nothing from R2. This is obviously wrong:
> It should either add a constant or get any one field so that cardinality of
> join is maintained.
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