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https://issues.apache.org/jira/browse/SPARK-9938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695285#comment-14695285
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Apache Spark commented on SPARK-9938:
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User 'yjshen' has created a pull request for this issue:
https://github.com/apache/spark/pull/8165
> Constant folding in binaryComparison
> ------------------------------------
>
> Key: SPARK-9938
> URL: https://issues.apache.org/jira/browse/SPARK-9938
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yijie Shen
>
> When we are comparing a int column with long literal, a < Int.MaxValue.toLong
> + 1L as a example, the analyzed plan would be LessThan(Cast(a, LongType),
> Literal).
> The result of predicate is determined and we could fold this at optimization
> phase.
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