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From "chengxiang li" <>
Subject Review Request 27521: HIVE-8706 Table statistic collection on counter failed due to table name character case
Date Mon, 03 Nov 2014 12:01:28 GMT

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Review request for hive and Xuefu Zhang.

Bugs: HIVE-8706

Repository: hive-git


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.


  ql/src/java/org/apache/hadoop/hive/ql/exec/ 4a8ca47 
  ql/src/test/results/clientpositive/tez/cross_product_check_1.q.out cc13e37 
  ql/src/test/results/clientpositive/tez/cross_product_check_2.q.out 69c3001 
  ql/src/test/results/clientpositive/tez/ctas.q.out 843d6fe 
  ql/src/test/results/clientpositive/tez/vector_decimal_10_0.q.out 8974bb8 




chengxiang li

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