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https://issues.apache.org/jira/browse/TAJO-840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14028319#comment-14028319
]
Hudson commented on TAJO-840:
-----------------------------
SUCCESS: Integrated in Tajo-master-build #244 (See
[https://builds.apache.org/job/Tajo-master-build/244/])
TAJO-840: Improve query result print with counting empty table. (jaehwa)
(jhjung: rev f3092c4205054e7be75f5729588c4accb1cf97c6)
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData2.sql
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData4.result
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData10.result
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData9.sql
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData5.result
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData6.result
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData6.sql
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData10.sql
* tajo-core/src/main/java/org/apache/tajo/master/querymaster/Repartitioner.java
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData9.result
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData11.sql
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/DistinctGroupbySortAggregationExec.java
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData12.sql
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData1.result
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData8.result
* tajo-core/src/test/java/org/apache/tajo/engine/query/TestGroupByQuery.java
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData12.result
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData5.sql
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/HashAggregateExec.java
* CHANGES
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData3.result
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData11.result
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData1.sql
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData3.sql
* tajo-core/src/main/java/org/apache/tajo/worker/Task.java
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/DistinctGroupbyHashAggregationExec.java
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData8.sql
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/SortAggregateExec.java
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData7.sql
*
tajo-core/src/test/resources/queries/TestGroupByQuery/testGroupByWithNullData4.sql
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData2.result
*
tajo-core/src/test/resources/results/TestGroupByQuery/testGroupByWithNullData7.result
> Improve query result print with counting empty table.
> ------------------------------------------------------
>
> Key: TAJO-840
> URL: https://issues.apache.org/jira/browse/TAJO-840
> Project: Tajo
> Issue Type: Improvement
> Components: physical operator, worker
> Reporter: Jaehwa Jung
> Assignee: Jaehwa Jung
> Fix For: 0.9.0
>
> Attachments: TAJO-840.patch, TAJO-840_2.patch, TAJO-840_3.patch,
> TAJO-840_4.patch, TAJO-840_5.patch, TAJO-840_6.patch, TAJO-840_7.patch,
> TAJO-840_8.patch
>
>
> If there is no data, tsql will print as follows:
> {code:xml}
> default> select * from table1;
> id, name, score, type
> -------------------------------
> 1, name1-1, 1.1, a
> 2, name1-2, 2.3, b
> 3, name1-3, 3.4, c
> 4, name1-4, 4.5, d
> 5, name1-5, 5.6, e
> default> select count(*) from table1 where id = 10;
> Progress: 100%, response time: 0.231 sec
> ?count
> -------------------------------
> (0 rows, 0.231 sec, 0 B selected)
> {code}
> But it need to print result detailedly as follows:
> {code:xml}
> ?count
> -------------------------------
> 0
> -------------------------------
> (1 rows, 0.231 sec, 0 B selected)
> {code}
> Because if users implement some applications with TajoClient or TajoJDBC,
> they can't understand easy that a query finished successfully or a query
> finished unsuccessfully.
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