[jira] [Commented] (TAJO-1675) NPE when selecting data from information_schema.partition_keys

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14730378#comment-14730378 ] 

ASF GitHub Bot commented on TAJO-1675:
--------------------------------------

Github user blrunner commented on the pull request:

    https://github.com/apache/tajo/pull/653#issuecomment-137657967
  
    Sorry @jihoonson 
    
    Honestly, I had made unnecessary adjustments to catalog protocol. As a result, we lost unnecessary times. So, I've removed unnecessary modification.


> NPE when selecting data from information_schema.partition_keys
> --------------------------------------------------------------
>
>                 Key: TAJO-1675
>                 URL: https://issues.apache.org/jira/browse/TAJO-1675
>             Project: Tajo
>          Issue Type: Bug
>          Components: Catalog
>            Reporter: Jihoon Son
>            Assignee: Jaehwa Jung
>             Fix For: 0.11.0
>
>
> See the title.
> You can reproduce as follows.
> {noformat}
> default> create table partitioned_nation (n_name text, n_comment text) partition by column (n_nationkey int8, n_regionkey int8) ;
> OK
> default> insert into partitioned_nation select * from nation;
> default> \d partitioned_nation
> table name: default.partitioned_nation
> table uri: hdfs://localhost:7020/tajo/warehouse/default/partitioned_nation
> store type: CSV
> number of rows: 0
> volume: 0 B
> Options: 
> 	'text.delimiter'='|'
> schema: 
> n_name	TEXT
> n_comment	TEXT
> Partitions: 
> type:COLUMN
> columns::n_nationkey (INT8), n_regionkey (INT8)
> default> \c information_schema
> You are now connected to database "information_schema" as user "jihoonson".
> information_schema> select * from partition_keys;
> partition_id,  column_name,  partition_value
> -------------------------------
> ERROR: java.lang.NullPointerException
> java.sql.SQLException: java.lang.NullPointerException
> 	at org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:717)
> 	at org.apache.tajo.cli.tsql.DefaultTajoCliOutputFormatter.printResult(DefaultTajoCliOutputFormatter.java:105)
> 	at org.apache.tajo.cli.tsql.TajoCli.localQueryCompleted(TajoCli.java:558)
> 	at org.apache.tajo.cli.tsql.TajoCli.executeQuery(TajoCli.java:532)
> 	at org.apache.tajo.cli.tsql.TajoCli.executeParsedResults(TajoCli.java:447)
> 	at org.apache.tajo.cli.tsql.TajoCli.runShell(TajoCli.java:419)
> 	at org.apache.tajo.cli.tsql.TajoCli.main(TajoCli.java:692)
> Caused by: java.io.IOException: java.lang.NullPointerException
> 	at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:80)
> 	at org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:711)
> 	... 6 more
> Caused by: com.google.protobuf.ServiceException: java.lang.NullPointerException
> 	at org.apache.tajo.client.QueryClientImpl.fetchNextQueryResult(QueryClientImpl.java:360)
> 	at org.apache.tajo.client.TajoClientImpl.fetchNextQueryResult(TajoClientImpl.java:134)
> 	at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:62)
> 	... 7 more
> {noformat}



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