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https://issues.apache.org/jira/browse/FLINK-6232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057469#comment-16057469
]
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_r123232793
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/stream/sql/JoinTest.scala
---
@@ -0,0 +1,149 @@
+/*
+ * 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.api.scala.stream.sql
+
+import org.apache.calcite.rel.logical.LogicalJoin
+import org.apache.flink.api.scala._
+import org.apache.flink.table.api.scala._
+import org.apache.flink.table.calcite.FlinkTypeFactory
+import org.apache.flink.table.runtime.join.JoinUtil
+import org.apache.flink.table.utils.TableTestUtil._
+import org.apache.flink.table.utils.{StreamTableTestUtil, TableTestBase}
+import org.junit.Assert._
+import org.junit.Test
+
+class JoinTest extends TableTestBase {
+ private val streamUtil: StreamTableTestUtil = streamTestUtil()
+ streamUtil.addTable[(Int, String, Long)]("MyTable", 'a, 'b, 'c.rowtime,
'proctime.proctime)
+ streamUtil.addTable[(Int, String, Long)]("MyTable2", 'a, 'b, 'c.rowtime,
'proctime.proctime)
+
+ @Test
+ def testProcessingTimeInnerJoin() = {
+
+ val sqlQuery = "SELECT t1.a, t2.b " +
+ "FROM MyTable as t1 join MyTable2 as t2 on t1.a = t2.a and " +
+ "t1.proctime between t2.proctime - interval '1' hour and t2.proctime
+ interval '1' hour"
+ val expected =
+ unaryNode(
+ "DataStreamCalc",
+ binaryNode(
+ "DataStreamRowStreamJoin",
+ unaryNode(
+ "DataStreamCalc",
+ streamTableNode(0),
+ term("select", "a", "proctime")
+ ),
+ unaryNode(
+ "DataStreamCalc",
+ streamTableNode(1),
+ term("select", "a", "b", "proctime")
+ ),
+ term("condition",
+ "AND(=(a, a0), >=(TIME_MATERIALIZATION(proctime), " +
+ "-(TIME_MATERIALIZATION(proctime0), 3600000)), " +
+ "<=(TIME_MATERIALIZATION(proctime), " +
+ "DATETIME_PLUS(TIME_MATERIALIZATION(proctime0), 3600000)))"),
+ term("select", "a, proctime, a0, b, proctime0"),
+ term("joinType", "InnerJoin")
+ ),
+ term("select", "a", "b")
+ )
+
+ streamUtil.verifySql(sqlQuery, expected)
+ }
+
+
+ @Test
+ def testJoinTimeBoundary(): Unit = {
+ verifyTimeBoundary(
+ "t1.proctime between t2.proctime - interval '1' hour " +
+ "and t2.proctime + interval '1' hour",
+ 3600000,
+ 3600000,
+ "proctime")
+
+ verifyTimeBoundary(
+ "t1.proctime > t2.proctime - interval '1' second and " +
+ "t1.proctime < t2.proctime + interval '1' second",
+ 999,
+ 999,
+ "proctime")
+
+ verifyTimeBoundary(
+ "t1.c >= t2.c - interval '1' second and " +
+ "t1.c <= t2.c + interval '1' second",
+ 1000,
+ 1000,
+ "rowtime")
+
+ verifyTimeBoundary(
+ "t1.c >= t2.c and " +
+ "t1.c <= t2.c + interval '1' second",
+ 0,
+ 1000,
+ "rowtime")
+
+ verifyTimeBoundary(
+ "t1.c >= t2.c + interval '1' second and " +
+ "t1.c <= t2.c + interval '10' second",
+ 0,
+ 10000,
+ "rowtime")
+
+ verifyTimeBoundary(
+ "t2.c - interval '1' second <= t1.c and " +
+ "t2.c + interval '10' second >= t1.c",
+ 1000,
+ 10000,
+ "rowtime")
+
+ verifyTimeBoundary(
+ "t1.c - interval '2' second >= t2.c + interval '1' second -" +
+ "interval '10' second and " +
+ "t1.c <= t2.c + interval '10' second",
+ 7000,
+ 10000,
+ "rowtime")
+ }
+
+ def verifyTimeBoundary(
--- End diff --
I like this test, but it would also be good to check that all unsupported
cases throw exceptions.
> 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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