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From "Chengxiang Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-8706) Table statistic collection on counter failed due to table name character case.
Date Mon, 03 Nov 2014 05:42:33 GMT
Chengxiang Li created HIVE-8706:
-----------------------------------

             Summary: Table statistic collection on counter failed due to table name character
case.
                 Key: HIVE-8706
                 URL: https://issues.apache.org/jira/browse/HIVE-8706
             Project: Hive
          Issue Type: Bug
    Affects Versions: 0.13.1
            Reporter: Chengxiang Li


Hive ignore table name character case, transfer table name to lowercase in metastore, while
Counters/TezCounters are character case sensitive. This difference may lead to table statistic
collection failed, as when Hive collection table statistic based on Counters, and hive use
table name as the group name of counter. 
ctas.q is an example, during the INSERT OVERWRITE TABLE sql execution, table name contains
uppercase characters, Hive gather table statistic in FileSinkOperator with uppercase table
name(translated  from sql), and aggregate table statistic in StatsTask with lowercase table
name(from metastore), which would failed table statistic collection.



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