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From "Remus Rusanu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6449) EXPLAIN has diffs in Statistics in tests generated on Windows vs. test generated on Linux
Date Tue, 18 Feb 2014 14:20:22 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13904082#comment-13904082
] 

Remus Rusanu commented on HIVE-6449:
------------------------------------

In Windows .q tests FileSinkOperator.publishStats fails silently because of JDBC error java.lang.ClassNotFoundException:
org.apache.derby.jdbc.EmbeddedDriver. this causes all subsequent problems because stats are
0/0

> EXPLAIN has diffs in Statistics in tests generated on Windows vs. test generated on Linux
> -----------------------------------------------------------------------------------------
>
>                 Key: HIVE-6449
>                 URL: https://issues.apache.org/jira/browse/HIVE-6449
>             Project: Hive
>          Issue Type: Bug
>          Components: Tests
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>            Priority: Critical
>
> When .q.out files are generated on Windows the statistics in EXPLAIN differ from ones
generated on Linux. Eg:
> {code}
> Running: diff -a /root/hive/itests/qtest/../../itests/qtest/target/qfile-results/clientpositive/vectorized_parquet.q.out
/root/hive/itests/qtest/../../ql/src/test/results/clientpositive/vectorized_parquet.q.out
> 72c72
> <             Statistics: Num rows: 12288 Data size: 73728 Basic stats: COMPLETE Column
stats: NONE
> ---
> >             Statistics: Num rows: 2072 Data size: 257046 Basic stats: COMPLETE Column
stats: NONE
> 75c75
> <               Statistics: Num rows: 6144 Data size: 36864 Basic stats: COMPLETE
Column stats: NONE
> ---
> >               Statistics: Num rows: 1036 Data size: 128523 Basic stats: COMPLETE
Column stats: NONE
> {code}



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