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https://issues.apache.org/jira/browse/SPARK-23175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuming Wang resolved SPARK-23175.
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Resolution: Duplicate
> Type conversion does not make sense under case like select ’0.1’ = 0
> --------------------------------------------------------------------
>
> Key: SPARK-23175
> URL: https://issues.apache.org/jira/browse/SPARK-23175
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Shaoquan Zhang
> Priority: Major
>
> SQL select '0.1' = 0 returns true. The result seems unreasonable.
> From the logical plan, the sql is parsed as 'Project [(cast(cast(0.1 as
> decimal(20,0)) as int) = 0) AS #6]'. The type conversion converts the string
> to integer, which leads to the unreasonable result.
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