[
https://issues.apache.org/jira/browse/TAJO-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14396054#comment-14396054
]
ASF GitHub Bot commented on TAJO-1430:
--------------------------------------
Github user dongjoon-hyun commented on the pull request:
https://github.com/apache/tajo/pull/442#issuecomment-89710956
Hmm. I attached the test pass result of the following command.
```
mvn clean install -Pparallel-test,hcatalog-0.12.0 -DLOG_LEVEL=ERROR
-Dmaven.fork.count=2 > TAJO-1430.travis.log.txt
```
https://app.box.com/s/rx85b6pv26sgo400e5dxf30bepyr86nl
Currently, Travis CI seems to be unstable and the builds fail on other
reasons like the following.
```
ERROR: org.apache.tajo.master.rm.TajoWorkerResourceManager (run(346)) -
java.lang.InterruptedException
2015-04-04 10:12:39,174 ERROR: org.apache.tajo.util.history.HistoryWriter
(writeHistory(318)) - Error while saving query history:
q_1428141094535_0543:Filesystem closed
```
> Improve SQLAnalyzer by session-based parsing-result caching
> -----------------------------------------------------------
>
> Key: TAJO-1430
> URL: https://issues.apache.org/jira/browse/TAJO-1430
> Project: Tajo
> Issue Type: New Feature
> Components: parser
> Affects Versions: 0.10.0
> Reporter: Dongjoon Hyun
> Assignee: Dongjoon Hyun
> Fix For: 0.10.1
>
> Attachments: TAJO-1430.patch, long_2times.sql, wide_table.sql
>
>
> There are wide tables with many many columns. Moveover, BI tools generate
> very complex queries whose size is several MB. Although Tajo executes those
> queries very fast in a few seconds, the total time of UX is slow.
> To become a fastest Hadoop DW, we need this following feature.
> {code:sql}
> tsql -f long_2times.sql
> ...
> (0 rows, 30.641 sec, 0 B selected)
> ...
> (0 rows, 1.707 sec, 0 B selected)
> {code}
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