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https://issues.apache.org/jira/browse/TAJO-1659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14600662#comment-14600662
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Hudson commented on TAJO-1659:
------------------------------
SUCCESS: Integrated in Tajo-master-build #740 (See
[https://builds.apache.org/job/Tajo-master-build/740/])
TAJO-1659: Simplify scan iteration in SeqScan. (hyunsik: rev
2ec307d621828cc18627ef7bd98e9c3c6774c5af)
* CHANGES
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/ScanIterator.java
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/FilterScanIterator.java
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/SeqScanExec.java
*
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/FullScanIterator.java
> 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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