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https://issues.apache.org/jira/browse/TAJO-119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766363#comment-13766363
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Hyunsik Choi commented on TAJO-119:
-----------------------------------
+1
I've verified 'mvn clean install'.
It's very interesting work. I definitely felt much performance benefits when
Tajo performs ETL work and queries on text-based data. I'm looking forward to
seeing your benchmark result.
> Refactor and Improve Datum
> --------------------------
>
> Key: TAJO-119
> URL: https://issues.apache.org/jira/browse/TAJO-119
> Project: Tajo
> Issue Type: Improvement
> Components: storage
> Reporter: Jinho Kim
> Assignee: Jinho Kim
> Fix For: 0.2-incubating
>
> Attachments: TAJO-119.patch
>
>
> A datum constructor called too many times. and there are so many overhead of
> converting between a primitive and string
> * Change to lazy datum types
> * Improve memory efficiency
> * Improve text, number processing
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