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https://issues.apache.org/jira/browse/HIVE-7717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14101502#comment-14101502
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Brock Noland commented on HIVE-7717:
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Gotcha,
Based on your runs...if the order is not deterministic we can either add an
ORDER BY to the query or add the following to the top of the q file:
{noformat}
-- SORT_BEFORE_DIFF
{noformat}
in either case we'd probably want to make the change on trunk and then merge to
our branch since the MR outputs would also need to be updated. We'd probably
want to remove those tests from this change and add them in a follow-up.
> Add .q tests coverage for "union all" [Spark Branch]
> ----------------------------------------------------
>
> Key: HIVE-7717
> URL: https://issues.apache.org/jira/browse/HIVE-7717
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Affects Versions: spark-branch
> Reporter: Na Yang
> Assignee: Na Yang
> Attachments: HIVE-7717.1-spark.patch, HIVE-7717.2-spark.patch
>
>
> Add automation test coverage for "union all", by searching through the
> q-tests in "ql/src/test/queries/clientpositive/" for union tests (like
> union*.q) and verifying/enabling them on spark.
> Steps to do:
> 1. Enable a qtest <q-test-name>.q in
> itests/src/test/resources/testconfiguration.properties by adding the .q test
> files to spark.query.files.
> 2. Run mvn test -Dtest=TestSparkCliDriver -Dqfile=<q-test-name>.q
> -Dtest.output.overwrite=true -Phadoop-2 to generate the output (located in
> ql/src/test/results/clientpositive/spark). File will be called
> <q-test-name>.q.out.
> 3. Check the generated output is good by verifying the results. For
> comparison, check the MR version in
> ql/src/test/results/clientpositive/<q-test-name>.q.out. The reason its
> separate is because the explain plan outputs are different for Spark/MR.
> 4. Checkin the modification to testconfiguration.properties, and the
> generated q.out file as well. You only have to generate the output once.
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