[ 
https://issues.apache.org/jira/browse/TAJO-1730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14742397#comment-14742397
 ] 

ASF GitHub Bot commented on TAJO-1730:
--------------------------------------

Github user jihoonson commented on the pull request:

    https://github.com/apache/tajo/pull/719#issuecomment-139851982
  
    There is another issue as follows.
    ```
    postgres> \d
    customer
    postgres> select count(*) from customer;
    ERROR: No error message
    ```
    
    Here is the query master log.
    ```
    ...
    2015-09-13 17:34:29,422 INFO 
org.apache.tajo.engine.planner.PhysicalPlannerImpl: The planner chooses [Hash 
Aggregation]
    2015-09-13 17:34:29,429 INFO org.apache.tajo.storage.jdbc.JdbcScanner: 
Generated SQL: SELECT 1 FROM null 
    2015-09-13 17:34:29,434 ERROR org.apache.tajo.worker.TaskImpl: internal 
error: FATAL: database "jihoonson&table=customer" does not exist
    org.apache.tajo.exception.TajoInternalError: internal error: FATAL: 
database "jihoonson&table=customer" does not exist
        at 
org.apache.tajo.storage.jdbc.JdbcScanner.executeQueryAndGetIter(JdbcScanner.java:249)
        at org.apache.tajo.storage.jdbc.JdbcScanner.next(JdbcScanner.java:102)
        at 
org.apache.tajo.engine.planner.physical.FullScanIterator.hasNext(FullScanIterator.java:39)
        at 
org.apache.tajo.engine.planner.physical.SeqScanExec.next(SeqScanExec.java:258)
        at 
org.apache.tajo.engine.planner.physical.HashAggregateExec.compute(HashAggregateExec.java:52)
        at 
org.apache.tajo.engine.planner.physical.HashAggregateExec.next(HashAggregateExec.java:84)
        at 
org.apache.tajo.engine.planner.physical.HashShuffleFileWriteExec.next(HashShuffleFileWriteExec.java:102)
        at org.apache.tajo.worker.TaskImpl.run(TaskImpl.java:403)
        at org.apache.tajo.worker.TaskContainer.run(TaskContainer.java:65)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
    2015-09-13 17:34:29,435 INFO org.apache.tajo.worker.TaskAttemptContext: 
Query status of ta_1442133232061_0002_000001_000000_00 is changed to TA_FAILED
    2015-09-13 17:34:29,437 INFO org.apache.tajo.worker.TaskImpl: 
ta_1442133232061_0002_000001_000000_00 completed. Worker's task counter - 
total:1, succeeded: 0, killed: 0, failed: 1
    ...
    ```
    In the above error message of ```database "jihoonson&table=customer" does 
not exist```, ```jihoonson``` is the name of the database which is mapped from 
pgsql to tajo.


> JDBC Tablespace support
> -----------------------
>
>                 Key: TAJO-1730
>                 URL: https://issues.apache.org/jira/browse/TAJO-1730
>             Project: Tajo
>          Issue Type: Improvement
>          Components: Storage
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.11.0
>
>         Attachments: TAJO-1730.patch, TAJO-1730_2.patch, TAJO-1730_3.patch
>
>
> The main objective of this issue is to implement JDBC-based storage and its 
> Tablespace implementation.



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