[
https://issues.apache.org/jira/browse/TAJO-1340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736820#comment-14736820
]
ASF GitHub Bot commented on TAJO-1340:
--------------------------------------
Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/671#discussion_r39039858
--- Diff:
tajo-client/src/main/java/org/apache/tajo/jdbc/FetchResultSet.java ---
@@ -25,11 +25,13 @@
import java.io.IOException;
import java.sql.SQLException;
+import java.util.concurrent.Future;
public class FetchResultSet extends TajoResultSetBase {
protected QueryClient tajoClient;
private int fetchRowNum;
private TajoMemoryResultSet currentResultSet;
+ private Future<TajoMemoryResultSet> nextResultSet;
--- End diff --
It looks that ```nextResultSet``` should also be closed when
FetchResultSet.close() is called.
> Change the default output file format.
> --------------------------------------
>
> Key: TAJO-1340
> URL: https://issues.apache.org/jira/browse/TAJO-1340
> Project: Tajo
> Issue Type: Improvement
> Components: Java Client, JDBC Driver, Offheap, Storage
> Reporter: Hyunsik Choi
> Assignee: Jinho Kim
> Fix For: 0.11.0, 0.12.0
>
> Attachments: TAJO-1340.patch, TAJO-1340_2.patch
>
>
> Currently, the default output file is CSV. Due to its nature, CSV has mainly
> three problems:
> * Its line or field delimiter can be duplicated to some character included
> in the result data.
> * Plan text file is likely to be larger than other file formats.
> * Its read and write performance is slow.
> We need to change the default output file format into other file formats. We
> also need to investigate which file format is the best for it.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
