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https://issues.apache.org/jira/browse/IMPALA-12847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Riza Suminto resolved IMPALA-12847.
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Fix Version/s: Impala 4.4.0
Resolution: Fixed
> Make computeScanRangeLocations and computeStats idempotent in
> HdfsScanNode.java
> -------------------------------------------------------------------------------
>
> Key: IMPALA-12847
> URL: https://issues.apache.org/jira/browse/IMPALA-12847
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Reporter: Riza Suminto
> Assignee: Riza Suminto
> Priority: Major
> Fix For: Impala 4.4.0
>
>
> After IMPALA-12631, HdfsScanNode.computeScanRangeLocations() need check if
> countStarSlot_ is null or not to schedule footer range only.
> HdfsScanNode.computeScanRangeLocations() is called along with
> HdfsScanNode.init() call.
> An external frontend that has its own count star slot analysis and
> initialization will need to recompute scan range assignment and stats after
> HdfsScanNode.init(). Therefore, computeScanRangeLocations() and
> computeStats() should be made idempotent after init() and exposed to
> subclasses.
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