[jira] [Commented] (HIVE-11496) Better tests for evaluating ORC predicate pushdown

["Prasanth Jayachandran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-11496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660973#comment-14660973 ] 

Prasanth Jayachandran commented on HIVE-11496:
----------------------------------------------

This patch adds only limited basic tests. I will add more tests after HIVE-11312, HIVE-11477, HIVE-11493 and HIVE-11494 are fixed.

> Better tests for evaluating ORC predicate pushdown
> --------------------------------------------------
>
>                 Key: HIVE-11496
>                 URL: https://issues.apache.org/jira/browse/HIVE-11496
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-11496.1.patch
>
>
> There were many regressions recently wrt ORC predicate pushdown. We don't have system tests to capture these regressions. Currently there is only junit tests for testing ORC predicate pushdown feature. Since hive counters are not available during qfile test execution there is no easy way to verify if ORC PPD feature worked or not. This jira is add a post execution hook to print hive counters (esp. number of input records) to error stream so that it will appear in qfile test output. This way we can verify ORC SARG evaluation and avoid future regressions.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)