[jira] [Updated] (FLINK-7339) aggregationToString fails when user defined aggregation contains constants

["Flink Jira Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Flink Jira Bot updated FLINK-7339:
----------------------------------
      Labels: auto-deprioritized-major auto-deprioritized-minor auto-unassigned  (was: auto-deprioritized-major auto-unassigned stale-minor)
    Priority: Not a Priority  (was: Minor)

This issue was labeled "stale-minor" 7 days ago and has not received any updates so it is being deprioritized. If this ticket is actually Minor, please raise the priority and ask a committer to assign you the issue or revive the public discussion.


> aggregationToString fails when user defined aggregation contains constants
> --------------------------------------------------------------------------
>
>                 Key: FLINK-7339
>                 URL: https://issues.apache.org/jira/browse/FLINK-7339
>             Project: Flink
>          Issue Type: Bug
>          Components: API / DataStream, Table SQL / API
>    Affects Versions: 1.3.1
>            Reporter: Stefano Bortoli
>            Priority: Not a Priority
>              Labels: auto-deprioritized-major, auto-deprioritized-minor, auto-unassigned
>
> Issue related to FLINK-7338, when the user defined aggregation contains a constant it breaks the aggregation translation to string, which are mapped 1 to 1 to the input fields. 
> OverAggregates.scala aggregationToString function fails to find a parameter of the function among the input fields, and therefore throws a RuntimeException. 
> {code}
> private[flink] def aggregationToString(
>     inputType: RelDataType,
>     rowType: RelDataType,
>     namedAggregates: Seq[CalcitePair[AggregateCall, String]]): String = {
>     val inFields = inputType.getFieldNames.asScala
>     val outFields = rowType.getFieldNames.asScala
>     val aggStrings = namedAggregates.map(_.getKey).map(
>       a => s"${a.getAggregation}(${
>         if (a.getArgList.size() > 0) {
>           // ERROR HAPPENS HERE!
>           a.getArgList.asScala.map(inFields(_)).mkString(", ")
>         } else {
>           "*"
>         }
>       })")
>     (inFields ++ aggStrings).zip(outFields).map {
>       case (f, o) => if (f == o) {
>         f
>       } else {
>         s"$f AS $o"
>       }
>     }.mkString(", ")
>   }
> {code}



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