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From "Jean Xu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4039) Hive compiler sometimes fails in semantic analysis / optimisation stage when boolean variable appears in WHERE clause.
Date Tue, 19 Feb 2013 19:11:12 GMT
Jean Xu created HIVE-4039:
-----------------------------

             Summary: 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
            Priority: Minor


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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