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https://issues.apache.org/jira/browse/IMPALA-3335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sahil Takiar resolved IMPALA-3335.
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Fix Version/s: Impala 4.0
Resolution: Fixed
> Allow single-node optimization with joins.
> ------------------------------------------
>
> Key: IMPALA-3335
> URL: https://issues.apache.org/jira/browse/IMPALA-3335
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 2.5.0
> Reporter: Alexander Behm
> Assignee: Sahil Takiar
> Priority: Minor
> Labels: ramp-up
> Fix For: Impala 4.0
>
>
> Now that IMPALA-561 has been fixed, we can remove the workaround that
> disables the our single-node optimization for any plan with joins. See
> MaxRowsProcessedVisitor.java:
> {code}
> } else if (caller instanceof HashJoinNode || caller instanceof
> NestedLoopJoinNode) {
> // Revisit when multiple scan nodes can be executed in a single fragment,
> IMPALA-561
> abort_ = true;
> return;
> }
> {code}
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