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https://issues.apache.org/jira/browse/DRILL-4321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133709#comment-15133709
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Zelaine Fong commented on DRILL-4321:
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Since these are floating point values, I would expect differences in precision.
So, I think these are ok.
> Difference in results count distinct with min max query on JDK8
> ---------------------------------------------------------------
>
> Key: DRILL-4321
> URL: https://issues.apache.org/jira/browse/DRILL-4321
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Affects Versions: 1.4.0
> Environment: 4 node cluster
> Reporter: Khurram Faraaz
> Labels: JDK8SUPPORT
> Attachments: expected_results.res
>
>
> count distinct query with min max and group by and order by returns incorrect
> results on MapR Drill 1.4.0, MapR FS 5.0.0 GA and JDK8
> The difference is in the way we round off values after the decimal when using
> JDK8.
> Expected results file can be found here
> https://github.com/mapr/drill-test-framework/blob/master/framework/resources/Functional/aggregates/aggregation/count_distinct/with_min_max_c_float_group_by_1_cols.res
> Failing query is Functional/aggregates/aggregation/count_distinct/
> with_min_max_c_float_group_by_1_cols.sql
> {noformat}
> select count(distinct c_float), max(c_float), min(c_float) from
> alltypes_with_nulls group by c_date order by c_date;
> {noformat}
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