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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/04/21 12:34:00 UTC
[jira] [Commented] (SPARK-24042) High-order function:
zip_with_index
[ https://issues.apache.org/jira/browse/SPARK-24042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16446767#comment-16446767 ]
Apache Spark commented on SPARK-24042:
--------------------------------------
User 'mn-mikke' has created a pull request for this issue:
https://github.com/apache/spark/pull/21121
> High-order function: zip_with_index
> -----------------------------------
>
> Key: SPARK-24042
> URL: https://issues.apache.org/jira/browse/SPARK-24042
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Marek Novotny
> Priority: Major
>
> Implement function {{zip_with_index(array[, indexFirst])}} that transforms the input array by encapsulating elements into pairs with indexes indicating the order.
> Examples:
> {{zip_with_index(array("d", "a", null, "b")) => [("d",0),("a",1),(null,2),("b",3)]}}
> {{zip_with_index(array("d", "a", null, "b"), true) => [(0,"d"),(1,"a"),(2,null),(3,"b")]}}
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