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https://issues.apache.org/jira/browse/CALCITE-5061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Rebele reassigned CALCITE-5061:
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Assignee: Ruben Q L (was: Thomas Rebele)
> Improve recursive application of the field trimming
> ---------------------------------------------------
>
> Key: CALCITE-5061
> URL: https://issues.apache.org/jira/browse/CALCITE-5061
> Project: Calcite
> Issue Type: Improvement
> Reporter: Thomas Rebele
> Assignee: Ruben Q L
> Priority: Major
>
> The RelFieldTrimmer has some shortcomings:
> * If the plan contains certain set ops (e.g., UNION(all=false)), even if the
> operator needs all fields for the correct result (CALCITE-3399), it may still
> make sense to apply the trimming to the children. See CALCITE-5051 for an
> example.
> * Same applies for a Sort with dynamic parameters in the fetch/offset, and
> RepeatUnions
> * The makeZeroLiteral logic in trimChildRestore(...) does not work for ARRAY
> / Java types.
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