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https://issues.apache.org/jira/browse/TAJO-1041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-1041:
-------------------------------
Assignee: (was: Hyunsik Choi)
> Tuple Block Iteration Model
> ---------------------------
>
> Key: TAJO-1041
> URL: https://issues.apache.org/jira/browse/TAJO-1041
> Project: Tajo
> Issue Type: Improvement
> Reporter: Hyunsik Choi
> Labels: block_iteration
> Fix For: block_iteration
>
>
> Currently, our physical executor is based on a tuple-at-a-time model. It is a
> traditional model and is well known that it is not efficient in terms of CPU
> costs.
> Also, I think that we can design integrated interface for row block with
> considering row block and vectorized row block. I'll add some possibility to
> extend row block iteration model to be vectorized.
> In addition, in order to achieve more CPU efficient implementations, we will
> make good use of off heap data structure (TAJO-907) and code generation
> (TAJO-906).
> This is an umbrella issue, which is to change current execution model to
> block iteration model.
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