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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6250) Distinct procTime with Rows boundaries
Date Fri, 21 Apr 2017 15:14:05 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15978903#comment-15978903
] 

ASF GitHub Bot commented on FLINK-6250:
---------------------------------------

Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3732#discussion_r112693953
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamOverAggregate.scala
---
    @@ -91,6 +93,22 @@ class DataStreamOverAggregate(
     
         val overWindow: org.apache.calcite.rel.core.Window.Group = logicWindow.groups.get(0)
     
    +    val distinctVarMap: Map[String,Boolean] = new HashMap[String, Boolean]
    +    if (input.isInstanceOf[DataStreamCalc]) {
    +      val dsCalc = input.asInstanceOf[DataStreamCalc]
    +      val iter = dsCalc
    +                 .selectionToString(dsCalc.getProgram, dsCalc.getExpressionString)
    +                 .split(",")
    +                 .iterator
    +      while (iter.hasNext) {
    +        val exp = iter.next
    +        if(exp.contains("DIST")){
    +          val varName = exp.substring(exp.indexOf("$"))
    +           distinctVarMap.put(varName,true)
    --- End diff --
    
    +space


> Distinct procTime with Rows boundaries
> --------------------------------------
>
>                 Key: FLINK-6250
>                 URL: https://issues.apache.org/jira/browse/FLINK-6250
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API & SQL
>            Reporter: radu
>            Assignee: Stefano Bortoli
>
> Support proctime with rows boundaries
> Q1.1. `SELECT SUM( DISTINCT  b) OVER (ORDER BY procTime() ROWS BETWEEN 2 PRECEDING AND
CURRENT ROW) FROM stream1`
> Q1.1. `SELECT COUNT(b), SUM( DISTINCT  b) OVER (ORDER BY procTime() ROWS BETWEEN 2 PRECEDING
AND CURRENT ROW) FROM stream1`



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