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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3634) Fix documentation for DataSetUtils.zipWithUniqueId()
Date Mon, 04 Apr 2016 14:39:25 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224250#comment-15224250

ASF GitHub Bot commented on FLINK-3634:

Github user greghogan commented on the pull request:

    The documentation for `zipWithIndex` now references requiring two passes and notes `zipWithUniqueId`
as an alternative.

> Fix documentation for DataSetUtils.zipWithUniqueId()
> ----------------------------------------------------
>                 Key: FLINK-3634
>                 URL: https://issues.apache.org/jira/browse/FLINK-3634
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation
>    Affects Versions: 1.1.0
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>            Priority: Minor
>             Fix For: 1.1.0, 1.0.1
> Under FLINK-2590 the assignment and testing of unique IDs was improved but the documentation
looks to still reference the old implementation.
> With {{parallelism=1}} there is no difference between zipWithUniqueID and zipWithIndex.
With greater parallelism the results of zipWithUniqueID are dependent on the partitioning.
> The documentation should demonstrate a possible result that is different from the incremental
sequence of zipWithIndex while noting that results are dependent on the parallelism and partitioning.

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