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https://issues.apache.org/jira/browse/SPARK-24042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17770659#comment-17770659
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ZygD commented on SPARK-24042:
------------------------------
[~Tagar] has incorrectly linked another issue to this one. Even this is
resolved, the other one is not. Can we "unlink" the issue SPARK-23074?
> 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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