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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8181) Upgrade JavaEWAH version to allow for unsorted bitset creation
Date Fri, 02 Jan 2015 04:59:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14262752#comment-14262752
] 

Gopal V commented on HIVE-8181:
-------------------------------

Thanks for the updated tests [~navis]!

I'm trying to figure out some of the EWAH results in the updates. I'm not sure about the results
in the update

array(8, ...) and array(13, ...) should be array(13, ...) right?




> Upgrade JavaEWAH version to allow for unsorted bitset creation
> --------------------------------------------------------------
>
>                 Key: HIVE-8181
>                 URL: https://issues.apache.org/jira/browse/HIVE-8181
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 0.14.0, 0.13.1
>            Reporter: Gopal V
>            Assignee: Gopal V
>         Attachments: HIVE-8181.1.patch, HIVE-8181.2.patch.txt
>
>
> JavaEWAH has removed the restriction that bitsets can only be set in order in the latest
release. 
> Currently the use of {{ewah_bitmap}} UDAF requires a {{SORT BY}}.
> {code}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException:
Can't set bits out of order with EWAHCompressedBitmap
>         at org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:824)
>         at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:474)
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:800)
>         at org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:84)
>         at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:474)
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:800)
>         at org.apache.hadoop.hive.ql.exec.ExtractOperator.processOp(ExtractOperator.java:45)
>         at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:474)
>         at org.apache.hadoop.hive.ql.exec.ExecReducer.reduce(ExecReducer.java:249)
>         ... 7 more
> Caused by: java.lang.RuntimeException: Can't set bits out of order with EWAHCompressedBitmap
>         at 
> {code}



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