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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1511) Hive plan serialization is slow
Date Mon, 19 Aug 2013 22:23:48 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13744359#comment-13744359
] 

Ashutosh Chauhan commented on HIVE-1511:
----------------------------------------

Yeah, I have been thinking about TestParse. I have not seen much value out of those tests.
All this while I am on the project, those tests didnt for once caught any regressions. If
anything, they are just a hassle which adds useless time to test runs and needs to get updated
everytime we change the plan. We already do explain in our .q files to keep track of plans,
so there is no extra info in Parse tests anyway. I will vote to drop those tests altogether.
What do you think?
                
> Hive plan serialization is slow
> -------------------------------
>
>                 Key: HIVE-1511
>                 URL: https://issues.apache.org/jira/browse/HIVE-1511
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 0.7.0
>            Reporter: Ning Zhang
>            Assignee: Mohammad Kamrul Islam
>         Attachments: HIVE-1511.4.patch, HIVE-1511.5.patch, HIVE-1511.patch, HIVE-1511-wip2.patch,
HIVE-1511-wip3.patch, HIVE-1511-wip4.patch, HIVE-1511-wip.patch
>
>
> As reported by Edward Capriolo:
> For reference I did this as a test case....
> SELECT * FROM src where
> key=0 OR key=0 OR key=0 OR  key=0 OR key=0 OR key=0 OR key=0 OR key=0
> OR key=0 OR key=0 OR key=0 OR
> key=0 OR key=0 OR key=0 OR  key=0 OR key=0 OR key=0 OR key=0 OR key=0
> OR key=0 OR key=0 OR key=0 OR
> ...(100 more of these)
> No OOM but I gave up after the test case did not go anywhere for about
> 2 minutes.

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