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https://issues.apache.org/jira/browse/IMPALA-9595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Becker reassigned IMPALA-9595:
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Assignee: Daniel Becker
> Predicate pushdown for complex types to scan node instead of unnest node
> ------------------------------------------------------------------------
>
> Key: IMPALA-9595
> URL: https://issues.apache.org/jira/browse/IMPALA-9595
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, Frontend
> Reporter: Gabor Kaszab
> Assignee: Daniel Becker
> Priority: Major
> Labels: complextype
>
> Instead of evaluating predicates inside an unnest it would be better to push
> the predicates directly into the scanner that fills the “list of tuples” slot
> consumed by the unnest. For example, the predicate evaluation could be
> integrated into the scanner’s DFA for projecting complex input data to the
> minimal output tuple.
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