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https://issues.apache.org/jira/browse/SPARK-8829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14987115#comment-14987115
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Michael Armbrust commented on SPARK-8829:
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Is this ready to be closed?
> Improve expression performance
> ------------------------------
>
> Key: SPARK-8829
> URL: https://issues.apache.org/jira/browse/SPARK-8829
> Project: Spark
> Issue Type: Umbrella
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
>
> This is an umbrella ticket for various improvements to DataFrame and SQL
> expression performance.
> These expressions can be found in the
> org.apache.spark.sql.catalyst.expressions package.
> Note that I also created a separate ticket for improving regular expression
> performance potentially using joni (SPARK-9213).
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