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https://issues.apache.org/jira/browse/SPARK-49203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruifeng Zheng reassigned SPARK-49203:
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Assignee: BingKun Pan
> Add expression for `java.util.Arrays.binarySearch`
> --------------------------------------------------
>
> Key: SPARK-49203
> URL: https://issues.apache.org/jira/browse/SPARK-49203
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark, SQL
> Affects Versions: 4.0.0
> Reporter: Ruifeng Zheng
> Assignee: BingKun Pan
> Priority: Major
>
> Add a dedicated expression
> {code:java}
> ArrayBinarySearch(array, value) {code}
> for binary search, the behavior should be the same as
> `java.util.Arrays.binarySearch`, so that we can use it to implement histogram
> plot in the client side (no longer need to depend on mllib's Bucketizer)
>
> This expression is for internal purposes, should not be exposed to end users.
> It assume the array is already sorted.
> if array or value is null, returns null.
>
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