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https://issues.apache.org/jira/browse/TAJO-1659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14599413#comment-14599413
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ASF GitHub Bot commented on TAJO-1659:
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Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/612#issuecomment-114869942
+1. I left trivial comments. Please consider them before commit.
> Simplify scan iteration in SeqScan
> ----------------------------------
>
> Key: TAJO-1659
> URL: https://issues.apache.org/jira/browse/TAJO-1659
> Project: Tajo
> Issue Type: Improvement
> Components: physical operator
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.11.0
>
>
> SeqScanExec internally uses if-condition branch to perform filter iteration
> or full-scan iteration on a table. It is possible to cause branch
> misprediction. Also, this approach makes code messy. This patch introduce an
> scan iterator to simplify the if-condition branch.
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