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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2453) Need a way to categorize queries in hooks for improved logging
Date Mon, 19 Sep 2011 17:37:09 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13108013#comment-13108013
] 

He Yongqiang commented on HIVE-2453:
------------------------------------

i haven't look at the change. just have a small question: if a query like "select key, count(1)
from (select a.key as key, b.value as value from src a join src b on a.key=b.key) group by
key", what tag will this query get?

> Need a way to categorize queries in hooks for improved logging
> --------------------------------------------------------------
>
>                 Key: HIVE-2453
>                 URL: https://issues.apache.org/jira/browse/HIVE-2453
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Kevin Wilfong
>            Assignee: Kevin Wilfong
>         Attachments: HIVE-2453.1.patch.txt, HIVE-2453.2.patch.txt
>
>
> We need a way to categorize queries, such as whether or not the include a join clause,
a group by clause, etc., in the hooks.  This will allow for better performance logging.
> Currently the only way I can find is to go through the operators in the tasks, but which
operators are used for the different types of queries may change over time.

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