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https://issues.apache.org/jira/browse/KUDU-935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15433948#comment-15433948
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Todd Lipcon commented on KUDU-935:
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[~mjacobs] - do you know if this is still an issue in current Impala? Is it
tracked on the IMPALA jira?
> Don't force un-materialized slots that are referenced in predicates to be
> materialized
> --------------------------------------------------------------------------------------
>
> Key: KUDU-935
> URL: https://issues.apache.org/jira/browse/KUDU-935
> Project: Kudu
> Issue Type: Bug
> Components: impala
> Affects Versions: Feature Complete
> Reporter: David Alves
> Assignee: David Alves
>
> Right now slotref thrift serialization makes sure the slots are materialized
> before serialization, but for kudu we send slot refs just to build the kudu
> predicates, meaning the slots might not be referenced in the projection at
> all. In this case we should avoid materializing the slots (and thus
> allocating memory).
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