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From "Jean Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4039) Hive compiler sometimes fails in semantic analysis / optimisation stage when boolean variable appears in WHERE clause.
Date Tue, 19 Feb 2013 19:27:12 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4039?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean Xu updated HIVE-4039:
--------------------------

    Attachment: HIVE_4039.1.patch.txt
    
> Hive compiler sometimes fails in semantic analysis / optimisation stage when boolean
variable appears in WHERE clause.
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-4039
>                 URL: https://issues.apache.org/jira/browse/HIVE-4039
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Jean Xu
>            Assignee: Jean Xu
>            Priority: Minor
>         Attachments: HIVE_4039.1.patch.txt
>
>
> Hive compiler fails with a NullPointerException in semantic analysis / optimisation stage
when a boolean variable appears in the WHERE clause in some cases. A minimal query to generate
this error is here:
> SELECT 1
> FROM (
> SELECT TRUE AS flag
> FROM dim_one_row:measurementsystems
> ) a
> WHERE flag;
> On the other hand, the following query is perfectly fine:
> SELECT 1
> FROM (
> SELECT TRUE AS flag
> FROM dim_one_row:measurementsystems
> ) a
> WHERE flag=TRUE;

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