[jira] [Commented] (TAJO-751) JDBC driver should support cancel() method.

[ASF GitHub Bot (JIRA)]

    [ 
https://issues.apache.org/jira/browse/TAJO-751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14381217#comment-14381217
 ] 

ASF GitHub Bot commented on TAJO-751:
-------------------------------------

Github user blrunner commented on the pull request:

    https://github.com/apache/tajo/pull/459#issuecomment-86292815
  
    @navis 
    
    Thanks for your contribution. But I failed to run unit test. For the 
reference, 51 cases were failures and 3 cases were errors. I attached some log 
messages as following:
    
    ```
    Tests run: 3, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.248 sec 
<<< FAILURE! - in org.apache.tajo.querymaster.TestTaskStatusUpdate
    case3(org.apache.tajo.querymaster.TestTaskStatusUpdate)  Time elapsed: 
1.093 sec  <<< FAILURE!
    java.lang.AssertionError: expected:<4> but was:<2>
            at org.junit.Assert.fail(Assert.java:88)
            at org.junit.Assert.failNotEquals(Assert.java:743)
            at org.junit.Assert.assertEquals(Assert.java:118)
            at org.junit.Assert.assertEquals(Assert.java:555)
            at org.junit.Assert.assertEquals(Assert.java:542)
            at 
org.apache.tajo.querymaster.TestTaskStatusUpdate.assertStatus(TestTaskStatusUpdate.java:164)
            at 
org.apache.tajo.querymaster.TestTaskStatusUpdate.case3(TestTaskStatusUpdate.java:111)
    ```
    
    ```
    
testInsertOverwriteIntoParquet(org.apache.tajo.engine.query.TestInsertQuery)  
Time elapsed: 0.002 sec  <<< ERROR!
    com.google.protobuf.ServiceException: relation 
"TestInsertQuery.parquet_table" already exists
    
            at 
org.apache.tajo.client.QueryClientImpl.executeQueryAndGetResult(QueryClientImpl.java:210)
            at 
org.apache.tajo.client.TajoClientImpl.executeQueryAndGetResult(TajoClientImpl.java:110)
            at 
org.apache.tajo.QueryTestCaseBase.executeString(QueryTestCaseBase.java:323)
            at 
org.apache.tajo.engine.query.TestInsertQuery.testInsertOverwriteIntoParquet(TestInsertQuery.java:546)
    ```
    
    
     



> JDBC driver should support cancel() method.
> -------------------------------------------
>
>                 Key: TAJO-751
>                 URL: https://issues.apache.org/jira/browse/TAJO-751
>             Project: Tajo
>          Issue Type: Improvement
>            Reporter: Hyoungjun Kim
>            Assignee: Navis
>            Priority: Minor
>
> Some OLAP or ETL tool call JDBC's cancel() function when a query is too late. 
> So Tajo's JDBC should support cancel() function in Statement or 
> PreparedStatement class.



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