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https://issues.apache.org/jira/browse/DRILL-5005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Rogers resolved DRILL-5005.
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Resolution: Fixed
Fix Version/s: 1.10.0
The label in the tree is left at "Sort" because, in modern Drill, all sorts use
the external sort. The older non-spillable sort is no longer used.
Memory usages for the sort were vastly revised, which should address the memory
concern in this issue.
> Potential issues with external sort info in query profile
> ---------------------------------------------------------
>
> Key: DRILL-5005
> URL: https://issues.apache.org/jira/browse/DRILL-5005
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.9.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
> Fix For: 1.10.0
>
>
> Run a query that will include an external sort.
> Look at the visualized plan. The external sort is shown in the tree as just
> "Sort". Suggestion: say "External Sort".
> In the operator profiles section, memory use for EXTERNAL_SORT is listed as
> 26MB. Yet the file being sorted is 388 MB. Even allowing for projects of a
> subset of column, 26 MB seems awfully small to hold the data set.
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