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From hongyuhong <...@git.apache.org>
Subject [GitHub] flink pull request #3386: [FLINK-5658][table] support unbounded eventtime ov...
Date Thu, 23 Feb 2017 07:29:13 GMT
Github user hongyuhong commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3386#discussion_r102652914
  
    --- Diff: flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/stream/sql/SqlITCase.scala
---
    @@ -171,4 +175,98 @@ class SqlITCase extends StreamingMultipleProgramsTestBase {
         val expected = mutable.MutableList("Hello", "Hello world")
         assertEquals(expected.sorted, StreamITCase.testResults.sorted)
       }
    +
    +  /** test sliding event-time unbounded window with partition by **/
    +  @Test
    +  def testSlideEventTimeUnboundWindowWithGroup(): Unit = {
    +    val env = StreamExecutionEnvironment.getExecutionEnvironment
    +    val tEnv = TableEnvironment.getTableEnvironment(env)
    +    env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
    +    StreamITCase.testResults = mutable.MutableList()
    +
    +    val sqlQuery = "SELECT a, b, SUM(a) over (partition by b order by rowtime() range
between " +
    +      "unbounded preceding and current row) from T1"
    +
    +    val t1 = StreamTestData.getSmall3TupleDataStream(env)
    +      .assignTimestampsAndWatermarks(new AssignerWithPeriodicWatermarks[(Int, Long, String)]
{
    +
    +        def getCurrentWatermark: Watermark = new Watermark(System.currentTimeMillis)
    +
    +        def extractTimestamp(element: (Int, Long, String), previousElementTimestamp:
Long): Long =
    +          1400000
    +      }).toTable(tEnv).as('a, 'b, 'c)
    +    tEnv.registerTable("T1", t1)
    +
    +    val result = tEnv.sql(sqlQuery).toDataStream[Row]
    +    result.addSink(new StreamITCase.StringSink)
    +    env.execute()
    +
    +    val expected1 = mutable.MutableList(
    +      "1,1,1", "2,2,2", "3,2,5")
    +    val expected2 = mutable.MutableList(
    +      "1,1,1", "2,2,5", "3,2,3")
    +    assertTrue(expected1.equals(StreamITCase.testResults.sorted) ||
    +      expected2.equals(StreamITCase.testResults.sorted))
    +  }
    +
    +  /** test sliding event-time unbounded window without partitiion by **/
    +  @Test
    +  def testSlideEventTimeUnboundWindowWithoutGroup(): Unit = {
    +    val env = StreamExecutionEnvironment.getExecutionEnvironment
    +    val tEnv = TableEnvironment.getTableEnvironment(env)
    +    env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
    +    StreamITCase.testResults = mutable.MutableList()
    +
    +    val sqlQuery = "SELECT SUM(a) " +
    +      "over (order by rowtime() range between unbounded preceding and current row) from
T1"
    +
    +    val t1 = StreamTestData.getSmall3TupleDataStream(env)
    +      .assignTimestampsAndWatermarks(new AssignerWithPeriodicWatermarks[(Int, Long, String)]
{
    +
    +        def getCurrentWatermark: Watermark = new Watermark(System.currentTimeMillis)
    +
    +        def extractTimestamp(element: (Int, Long, String), previousElementTimestamp:
Long): Long =
    +          1400000
    +      }).toTable(tEnv).as('a, 'b, 'c)
    +    tEnv.registerTable("T1", t1)
    +
    +    val result = tEnv.sql(sqlQuery).toDataStream[Row]
    +    result.addSink(new StreamITCase.StringSink)
    +    env.execute()
    +
    +    assertEquals(Some("6"), StreamITCase.testResults.sorted.get(2))
    +  }
    +
    +  /** test sliding event-time unbounded window with later record **/
    +  @Test
    +  def testSlideEventTimeUnboundWindowWithLater(): Unit = {
    +    val env = StreamExecutionEnvironment.getExecutionEnvironment
    +    val tEnv = TableEnvironment.getTableEnvironment(env)
    +    env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
    +    env.setParallelism(1)
    --- End diff --
    
    Oh yes, i will remove it.


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