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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2016/08/20 16:24:22 UTC
[jira] [Updated] (SPARK-17124) RelationalGroupedDataset.agg should
be order preserving and allow duplicate column names
[ https://issues.apache.org/jira/browse/SPARK-17124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan updated SPARK-17124:
--------------------------------
Assignee: Peter Lee
> RelationalGroupedDataset.agg should be order preserving and allow duplicate column names
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-17124
> URL: https://issues.apache.org/jira/browse/SPARK-17124
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Peter Lee
> Assignee: Peter Lee
>
> See discussion on the mailing list: http://apache-spark-developers-list.1001551.n3.nabble.com/Re-Aggregations-with-scala-pairs-td18666.html
> {code}
> def agg(aggExpr: (String, String), aggExprs: (String, String)*): DataFrame = {
> agg((aggExpr +: aggExprs).toMap)
> }
> {code}
> The above implementation is not order preserving, and does not allow duplicate names.
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