[jira] [Comment Edited] (TAJO-1430) Improve SQLAnalyzer by session-based parsing-result caching

["Dongjoon Hyun (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14484233#comment-14484233 ] 

Dongjoon Hyun edited comment on TAJO-1430 at 4/7/15 10:37 PM:
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I checked findbugs but all of them(1 tajo-common findbugs and 17 tajo-core findbugs) are not related to my code.


was (Author: dongjoon):
I checked findbugs but 1 tajo-common findbugs and 17 tajo-core findbugs are not related to my code.

> 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.Hyun.150407.0.patch.txt, TAJO-1430.Hyun.150407.1.patch.txt, 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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