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Posted to issues@spark.apache.org by "Kazuaki Ishizaki (JIRA)" <ji...@apache.org> on 2017/03/01 13:51:45 UTC
[jira] [Created] (SPARK-19786) Facilitate loop optimization in a
JIT compiler regarding range()
Kazuaki Ishizaki created SPARK-19786:
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Summary: Facilitate loop optimization in a JIT compiler regarding range()
Key: SPARK-19786
URL: https://issues.apache.org/jira/browse/SPARK-19786
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.2.0
Reporter: Kazuaki Ishizaki
[This article|https://databricks.com/blog/2017/02/16/processing-trillion-rows-per-second-single-machine-can-nested-loop-joins-fast.html] suggests that better generated code can improve performance by facilitating compiler optimizations.
This JIRA changes the generated code for {{range()}} to facilitate loop optimizations in a JIT compiler for achieving better performance.
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