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https://issues.apache.org/jira/browse/HIVE-25625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis reassigned HIVE-25625:
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> Drop TestCompareCliDriver and related code from tests
> -----------------------------------------------------
>
> Key: HIVE-25625
> URL: https://issues.apache.org/jira/browse/HIVE-25625
> Project: Hive
> Issue Type: Task
> Components: Testing Infrastructure
> Reporter: Stamatis Zampetakis
> Assignee: Stamatis Zampetakis
> Priority: Major
>
> The driver has been introduced back in 2015 (HIVE-6010) aiming to run queries
> with vectorization on/off and comparing the results. However it didn't
> receive much attention since then and currently only two queries are run with
> this driver.
> The majority of tests aiming to ensure vectorization works correctly use the
> {{TestMiniLlapLocalCliDriver}} and run a query twice switching on/off the
> necessary properties.
> Summing up having the
> [TestCompareCliDriver|https://github.com/apache/hive/blob/d521f149fade25f74e7ca28fa399103684a80580/itests/qtest/src/test/java/org/apache/hadoop/hive/cli/TestCompareCliDriver.java]
> in the repo leads to extra code maintenance cost without significant benefit.
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