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https://issues.apache.org/jira/browse/TAJO-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493202#comment-14493202
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Dongjoon Hyun commented on TAJO-1430:
-------------------------------------
Thank you! ^^
> 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
> Reporter: Dongjoon Hyun
> Assignee: Dongjoon Hyun
> Fix For: 0.11.0
>
> Attachments: TAJO-1430.Hyun.150407.0.patch.txt,
> TAJO-1430.Hyun.150407.1.patch.txt, TAJO-1430.Hyun.150413.0.patch.txt,
> TAJO-1430.Hyun.150413.1.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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