[jira] [Created] (TAJO-417) TestSQLExpression.testCastFromTable causes unit test failure

["Hyunsik Choi (JIRA)" <ji...@apache.org>]

Hyunsik Choi created TAJO-417:
---------------------------------

             Summary: TestSQLExpression.testCastFromTable causes unit test failure
                 Key: TAJO-417
                 URL: https://issues.apache.org/jira/browse/TAJO-417
             Project: Tajo
          Issue Type: Bug
          Components: operator/expression
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
            Priority: Trivial
             Fix For: 0.8-incubating


{code}
testSimpleEval("select '1980-04-01 01:50:01'::timestamp::bigint;", new String [] {"323369401000"});
    testSimpleEval("select ('1980-04-01 01:50:01'::timestamp)::bigint;", new String [] {"323369401000"});
{code}

The above unit tests can cause failure due to the precision difference between bigint value and the value casted from timestamp string. This patch eliminates the difference by using only timestamp strings.

{code}
testSimpleEval("select '1980-04-01 01:50:01'::timestamp::bigint::timestamp", new String [] {"1980-04-01 01:50:01"});
    testSimpleEval("select cast (('1980-04-01 01:50:01'::timestamp)::bigint as timestamp)",
        new String [] {"1980-04-01 01:50:01"});
{code}



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