[jira] [Resolved] (FLINK-6542) Non-keyed, non-windowed aggregation fails

["Fabian Hueske (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-6542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske resolved FLINK-6542.
----------------------------------
    Resolution: Not A Problem

> Non-keyed, non-windowed aggregation fails
> -----------------------------------------
>
>                 Key: FLINK-6542
>                 URL: https://issues.apache.org/jira/browse/FLINK-6542
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.3.0
>            Reporter: Timo Walther
>            Assignee: Xingcan Cui
>            Priority: Critical
>             Fix For: 1.3.0
>
>
> The following query produces an empty result:
> {code}
>   val data = List(
>     (1L, 1, 1d, 1f, new BigDecimal("1"), "Hi"),
>     (2L, 2, 2d, 2f, new BigDecimal("2"), "Hallo"),
>     (3L, 2, 2d, 2f, new BigDecimal("2"), "Hello"),
>     (4L, 5, 5d, 5f, new BigDecimal("5"), "Hello"),
>     (7L, 3, 3d, 3f, new BigDecimal("3"), "Hello"),
>     (8L, 3, 3d, 3f, new BigDecimal("3"), "Hello world"),
>     (16L, 4, 4d, 4f, new BigDecimal("4"), "Hello world"))
>   @Test
>   def testMin(): Unit = {
>     val env = StreamExecutionEnvironment.getExecutionEnvironment
>     env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
>     val tEnv = TableEnvironment.getTableEnvironment(env)
>     StreamITCase.testResults = mutable.MutableList()
>     val stream = env
>       .fromCollection(data)
>       .assignTimestampsAndWatermarks(new TimestampWithEqualWatermark())
>     val table = stream.toTable(tEnv, 'rowtime.rowtime, 'int, 'double, 'float, 'bigdec, 'string)
>     tEnv.registerTable("MyTable", table)
>     val t = tEnv.sql("SELECT MIN(`int`) FROM MyTable")
>     t.toRetractStream[Row].print()
>   }
> {code}



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