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https://issues.apache.org/jira/browse/FLINK-6232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057471#comment-16057471
]
ASF GitHub Bot commented on FLINK-6232:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3715#discussion_r123238701
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/harness/JoinHarnessTest.scala
---
@@ -0,0 +1,200 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.flink.table.runtime.harness
+
+import java.util.concurrent.ConcurrentLinkedQueue
+import java.lang.{Integer => JInt}
+
+import org.apache.flink.api.common.functions.FlatJoinFunction
+import org.apache.flink.api.common.typeinfo.BasicTypeInfo._
+import org.apache.flink.api.common.typeinfo.{BasicTypeInfo,
TypeInformation}
+import org.apache.flink.api.java.typeutils.RowTypeInfo
+import org.apache.flink.streaming.api.operators.co.KeyedCoProcessOperator
+import org.apache.flink.streaming.runtime.streamrecord.StreamRecord
+import
org.apache.flink.streaming.util.{KeyedTwoInputStreamOperatorTestHarness,
TwoInputStreamOperatorTestHarness}
+import org.apache.flink.table.codegen.GeneratedFunction
+import
org.apache.flink.table.runtime.harness.HarnessTestBase.{RowResultSortComparator,
TupleRowKeySelector}
+import org.apache.flink.table.runtime.join.ProcTimeInnerJoin
+import org.apache.flink.table.runtime.types.CRow
+import org.apache.flink.types.Row
+import org.junit.Test
+
+
+class JoinHarnessTest extends HarnessTestBase{
+
+ private val rT = new RowTypeInfo(Array[TypeInformation[_]](
+ INT_TYPE_INFO,
+ STRING_TYPE_INFO),
+ Array("a", "b"))
+
+
+ val funcCode: String =
+ """
+ |public class TestJoinFunction
+ | extends
org.apache.flink.api.common.functions.RichFlatJoinFunction {
+ | transient org.apache.flink.types.Row out =
+ | new org.apache.flink.types.Row(4);
+ | public TestJoinFunction() throws Exception {}
+ |
+ | @Override
+ | public void open(org.apache.flink.configuration.Configuration
parameters)
+ | throws Exception {}
+ |
+ | @Override
+ | public void join(Object _in1, Object _in2,
org.apache.flink.util.Collector c)
+ | throws Exception {
+ | org.apache.flink.types.Row in1 = (org.apache.flink.types.Row)
_in1;
+ | org.apache.flink.types.Row in2 = (org.apache.flink.types.Row)
_in2;
+ |
+ | out.setField(0, in1.getField(0));
+ | out.setField(1, in1.getField(1));
+ | out.setField(2, in2.getField(0));
+ | out.setField(3, in2.getField(1));
+ |
+ | c.collect(out);
+ |
+ | }
+ |
+ | @Override
+ | public void close() throws Exception {}
+ |}
+ """.stripMargin
+
+ @Test
+ def testProcTimeJoin() {
--- End diff --
Please add comments for the scenarios that this test covers.
> Support proctime inner equi-join between two streams in the SQL API
> -------------------------------------------------------------------
>
> Key: FLINK-6232
> URL: https://issues.apache.org/jira/browse/FLINK-6232
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: hongyuhong
> Assignee: hongyuhong
>
> 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.proctime, o.productId, o.orderId, s.proctime AS shipTime
> FROM Orders AS o
> JOIN Shipments AS s
> ON o.orderId = s.orderId
> AND o.proctime BETWEEN s.proctime AND s.proctime + 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.proctime BETWEEN s.proctime AND s.proctime +
> INTERVAL '1' HOUR}} only can use proctime that is a system attribute, the
> time condition only support bounded time range like {{o.proctime BETWEEN
> s.proctime - INTERVAL '1' HOUR AND s.proctime + INTERVAL '1' HOUR}}, not
> support unbounded like {{o.proctime > s.protime}}, and should include both
> two stream's proctime attribute, {{o.proctime between proctime() and
> proctime() + 1}} should also not be supported.
> This issue includes:
> * Design of the DataStream operator to deal with stream join
> * Translation from Calcite's RelNode representation (LogicalJoin).
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