[jira] [Commented] (HIVE-17651) Profile TableScanOperator in case stats gathering is on

["Zoltan Haindrich (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-17651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16251665#comment-16251665 ] 

Zoltan Haindrich commented on HIVE-17651:
-----------------------------------------

[~jcamachorodriguez] I guess there is no issue here...but just in case; in the next link ; the stats gathering is *always* off; and because of that the boolean which would capture the vectorization state is never updated...
https://github.com/apache/hive/blame/master/ql/src/java/org/apache/hadoop/hive/ql/exec/TableScanOperator.java#L259-L273

do you think this might cause any trouble; or just close this ticket?

> Profile TableScanOperator in case stats gathering is on
> -------------------------------------------------------
>
>                 Key: HIVE-17651
>                 URL: https://issues.apache.org/jira/browse/HIVE-17651
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>         Attachments: HIVE-17651.01ex.patch, HIVE-17651.02rc.patch, HIVE-17651.02rc.patch
>
>
> It seems to me that there might be some overhead when the operator is gathering the stats; 
> also check: it seems that in case vectorization is on ; the collected rowcount would be invalid



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)