Stamatis Zampetakis created HIVE-25625:
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Summary: 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
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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