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https://issues.apache.org/jira/browse/DRILL-5168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15785210#comment-15785210
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Khurram Faraaz commented on DRILL-5168:
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By default `planner.enable_streamagg` is set to true in sys.options. Some
existing Functional tests are testing this option.
A search on the test framework repo on GitHub returned 42 matching results.
Most of those are for tests that verify query plan.
https://github.com/mapr/drill-test-framework/search?utf8=%E2%9C%93&q=StreamAgg
If we need more coverage for StreamAgg we can discuss this.
> No direct Streaming Agg test cases
> ----------------------------------
>
> Key: DRILL-5168
> URL: https://issues.apache.org/jira/browse/DRILL-5168
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.8.0
> Reporter: Paul Rogers
> Priority: Minor
>
> Drill's provides both hash and streaming aggregate operators. Both reside in
> the {{org.apache.drill.exec.physical.impl.aggregate}} package. The
> corresponding test package contains tests only for the hash aggregate:
> {{TestHashAggr}}. No corresponding unit tests exists for streaming aggregates.
> It may be that other, SQL-level tests have the effect of testing streaming
> aggregates (but I've not yet found such tests.) Without unit tests, we cannot
> guarantee that changes to streaming aggregates will work correctly.
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