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Date: Tue, 13 Sep 2016 12:08:20 +0000 (UTC)
From: "Amruth S (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HIVE-14741) Incorrect results on boolean col when
 vectorization is ON
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archived-at: Tue, 13 Sep 2016 12:08:22 -0000


     [ https://issues.apache.org/jira/browse/HIVE-14741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amruth S updated HIVE-14741:
----------------------------
    Labels: orc vectorization  (was: )

> Incorrect results on boolean col when vectorization is ON
> ---------------------------------------------------------
>
>                 Key: HIVE-14741
>                 URL: https://issues.apache.org/jira/browse/HIVE-14741
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.0.0, 2.1.0
>            Reporter: Amruth S
>              Labels: orc, vectorization
>         Attachments: 000000_0
>
>
> I have attached the ORC part file on which the issue is manifesting. It has just one boolean column (lot of nulls, 231=trues : verified using orc file dump utility)
> 1) Create external table on the part file attached
> CREATE EXTERNAL TABLE bool_vect_issue (
> `bool_col` BOOLEAN)
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.ql.io.orc.OrcSerde'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'
> LOCATION
> '<loc to which the part file is copied>';
> 2) 
> set hive.vectorized.execution.enabled = true;
> select sum(if((bool_col) , 1, 0)) from bool_vect_issue;
> gives
> 708206
> 3) 
> set hive.vectorized.execution.enabled = false;
> select sum(if((bool_col) , 1, 0)) from bool_vect_issue;
> gives
> 231
> The issue seem to have the same impact as HIVE-12435



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