flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3664) Create a method to easily Summarize a DataSet
Date Thu, 07 Apr 2016 18:56:25 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15230822#comment-15230822
] 

ASF GitHub Bot commented on FLINK-3664:
---------------------------------------

Github user zentol commented on the pull request:

    https://github.com/apache/flink/pull/1859#issuecomment-207049231
  
    It is indeed a flaky kafka test.
    
    You don't have to worry about it, the majority of build passed we're good on that front.


> Create a method to easily Summarize a DataSet
> ---------------------------------------------
>
>                 Key: FLINK-3664
>                 URL: https://issues.apache.org/jira/browse/FLINK-3664
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Todd Lisonbee
>         Attachments: DataSet-Summary-Design-March2016-v1.txt
>
>
> Here is an example:
> {code}
> /**
>  * Summarize a DataSet of Tuples by collecting single pass statistics for all columns
>  */
> public Tuple summarize()
> Dataset<Tuple3<Double, String, Boolean>> input = // [...]
> Tuple3<DoubleColumnSummary,StringColumnSummary,BooleanColumnSummary> summary =
input.summarize()
> summary.getField(0).stddev()
> summary.getField(1).maxStringLength()
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message