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https://issues.apache.org/jira/browse/DRILL-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Rogers reassigned DRILL-5171:
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Assignee: Paul Rogers
> TestSort unit test tests the external sort, not the in-memory SortBatch
> -----------------------------------------------------------------------
>
> Key: DRILL-5171
> URL: https://issues.apache.org/jira/browse/DRILL-5171
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.8.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
>
> Drill provides two sort operators: an in-memory {{SortBatch}} and a spillable
> {{ExternalSortBatch}}. The external sort is adaptive: it sorts in memory when
> it can, and spills when necessary. Perhaps for this reason, the in-memory
> sort appears to be deprecated (but is not marked as such.)
> The in-memory sort has associated test case: {{TestSort}} and
> {{TestSimpleSort}}. When run, {{TestSort}} actually uses the external sort.
> {{TestSimpleSort}} has a single test case which is disabled.
> The result is that no tests exist for the in-memory sort. That operator
> should be marked as deprecated, or the test cases adjusted to actually
> exercise the in-memory sort operator.
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