CC'ing dev list, you should open a Jira and a PR related to it to discuss it c.f. https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark#ContributingtoSpark-ContributingCodeChanges
On Wed, Aug 17, 2016 4:01 PM, Andrés Ivaldi iaiva...@gmail.com wrote: Hello, I'd like to report a wrong behavior of DataSet's API, I don´t know how I can do that. My Jira account doesn't allow me to add a Issue I'm using Apache 2.0.0 but the problem came since at least version 1.4 (given the doc since 1.3) The problem is simple to reporduce, also the work arround, if we apply agg over a DataSet with scala pairs over the same column, only one agg over that column is actualy used, this is because the toMap that reduce the pair values of the mane key to one and overwriting the value class https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/RelationalGroupedDataset.scala def agg(aggExpr: (String, String), aggExprs: (String, String)*): DataFrame = { agg((aggExpr +: aggExprs).toMap) } rewrited as somthing like this should work def agg(aggExpr: (String, String), aggExprs: (String, String)*): DataFrame = { toDF((aggExpr +: aggExprs).map { pairExpr => strToExpr(pairExpr._2)(df(pairExpr._1).expr) }.toSeq) } regards -- Ing. Ivaldi Andres Olivier Girardot | Associé o.girar...@lateral-thoughts.com +33 6 24 09 17 94
