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ASF GitHub Bot commented on FLINK-6233: --------------------------------------- Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/4625#discussion_r139400726 --- Diff: flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/harness/JoinHarnessTest.scala --- @@ -383,13 +384,158 @@ class JoinHarnessTest extends HarnessTestBase{ val expectedOutput = new ConcurrentLinkedQueue[Object]() expectedOutput.add(new StreamRecord( - CRow(Row.of(2: JInt, "aaa2", 2: JInt, "bbb7"), true), 7)) + CRow(Row.of(2L: JLong, "aaa2", 2L: JLong, "bbb7"), true), 7)) expectedOutput.add(new StreamRecord( - CRow(Row.of(1: JInt, "aaa3", 1: JInt, "bbb12"), true), 12)) + CRow(Row.of(1L: JLong, "aaa3", 1L: JLong, "bbb12"), true), 12)) verify(expectedOutput, result, new RowResultSortComparator()) testHarness.close() } + /** a.c1 >= b.rowtime - 10 and a.rowtime <= b.rowtime + 20 **/ + @Test + def testCommonRowTimeJoin() { + + val joinProcessFunc = new RowTimeBoundedStreamInnerJoin( + -10, 20, 0, rT, rT, "TestJoinFunction", funcCode, 0, 0) + + val operator: KeyedCoProcessOperator[String, CRow, CRow, CRow] = + new KeyedCoProcessOperator[String, CRow, CRow, CRow](joinProcessFunc) + val testHarness: KeyedTwoInputStreamOperatorTestHarness[String, CRow, CRow, CRow] = + new KeyedTwoInputStreamOperatorTestHarness[String, CRow, CRow, CRow]( + operator, + new TupleRowKeySelector[String](1), + new TupleRowKeySelector[String](1), + BasicTypeInfo.STRING_TYPE_INFO, + 1, 1, 0) + + testHarness.open() + + // Advance + testHarness.processWatermark1(new Watermark(1)) + testHarness.processWatermark2(new Watermark(1)) + + // Test late data --- End diff -- A few more comments like this would be good > Support rowtime inner equi-join between two streams in the SQL API > ------------------------------------------------------------------ > > Key: FLINK-6233 > URL: https://issues.apache.org/jira/browse/FLINK-6233 > Project: Flink > Issue Type: Sub-task > Components: Table API & SQL > Reporter: hongyuhong > Assignee: Xingcan Cui > > The goal of this issue is to add support for inner equi-join on proc time > streams to the SQL interface. > Queries similar to the following should be supported: > {code} > SELECT o.rowtime , o.productId, o.orderId, s.rowtime AS shipTime > FROM Orders AS o > JOIN Shipments AS s > ON o.orderId = s.orderId > AND o.rowtime BETWEEN s.rowtime AND s.rowtime + INTERVAL '1' HOUR; > {code} > The following restrictions should initially apply: > * The join hint only support inner join > * The ON clause should include equi-join condition > * The time-condition {{o.rowtime BETWEEN s.rowtime AND s.rowtime + INTERVAL > '1' HOUR}} only can use rowtime that is a system attribute, the time > condition only support bounded time range like {{o.rowtime BETWEEN s.rowtime > - INTERVAL '1' HOUR AND s.rowtime + INTERVAL '1' HOUR}}, not support > unbounded like {{o.rowtime < s.rowtime}} , and should include both two > stream's rowtime attribute, {{o.rowtime between rowtime () and rowtime () + > 1}} should also not be supported. > An row-time streams join will not be able to handle late data, because this > would mean in insert a row into a sorted order shift all other computations. > This would be too expensive to maintain. Therefore, we will throw an error if > a user tries to use an row-time stream join with late data handling. > This issue includes: > * Design of the DataStream operator to deal with stream join > * Translation from Calcite's RelNode representation (LogicalJoin). -- This message was sent by Atlassian JIRA (v6.4.14#64029)