Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3862#discussion_r115721182
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/datastream/TimeAttributesITCase.scala
---
@@ -0,0 +1,210 @@
+/*
+ * 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.datastream
+
+import java.math.BigDecimal
+import java.sql.Timestamp
+
+import org.apache.flink.api.scala._
+import org.apache.flink.streaming.api.TimeCharacteristic
+import
org.apache.flink.streaming.api.functions.AssignerWithPunctuatedWatermarks
+import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment
+import org.apache.flink.streaming.api.watermark.Watermark
+import org.apache.flink.streaming.util.StreamingMultipleProgramsTestBase
+import org.apache.flink.table.api.{TableEnvironment, Types,
ValidationException}
+import org.apache.flink.table.api.scala._
+import org.apache.flink.table.api.scala.batch.utils.TableProgramsTestBase
+import org.apache.flink.table.api.scala.stream.utils.StreamITCase
+import
org.apache.flink.table.calcite.RelTimeIndicatorConverterTest.TableFunc
+import org.apache.flink.table.expressions.{TimeIntervalUnit,
WindowReference}
+import org.apache.flink.table.functions.TableFunction
+import org.apache.flink.table.plan.logical.TumblingGroupWindow
+import
org.apache.flink.table.runtime.datastream.TimeAttributesITCase.TimestampWithEqualWatermark
+import org.apache.flink.table.utils.TableTestBase
+import org.apache.flink.table.utils.TableTestUtil._
+import org.apache.flink.types.Row
+import org.junit.Assert._
+import org.junit.Test
+
+import scala.collection.mutable
+
+/**
+ * Tests for access and materialization of time attributes.
+ */
+class TimeAttributesITCase extends StreamingMultipleProgramsTestBase {
+
+ 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 testCalcMaterialization(): 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)
+
+ val t = table.select('rowtime.cast(Types.STRING))
+
+ val results = t.toDataStream[Row]
+ results.addSink(new StreamITCase.StringSink)
+ env.execute()
+
+ val expected = Seq(
+ "1970-01-01 00:00:00.001",
+ "1970-01-01 00:00:00.002",
+ "1970-01-01 00:00:00.003",
+ "1970-01-01 00:00:00.004",
+ "1970-01-01 00:00:00.007",
+ "1970-01-01 00:00:00.008",
+ "1970-01-01 00:00:00.016")
+ assertEquals(expected.sorted, StreamITCase.testResults.sorted)
+ }
+
+ @Test
+ def testCalcMaterialization2(): 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)
+
+ val t = table
+ .filter('rowtime.cast(Types.LONG) > 4)
+ .select('rowtime, 'rowtime.floor(TimeIntervalUnit.DAY),
'rowtime.ceil(TimeIntervalUnit.DAY))
+
+ val results = t.toDataStream[Row]
+ results.addSink(new StreamITCase.StringSink)
+ env.execute()
+
+ val expected = Seq(
+ "1970-01-01 00:00:00.007,1970-01-01 00:00:00.0,1970-01-02
00:00:00.0",
+ "1970-01-01 00:00:00.008,1970-01-01 00:00:00.0,1970-01-02
00:00:00.0",
+ "1970-01-01 00:00:00.016,1970-01-01 00:00:00.0,1970-01-02
00:00:00.0")
+ assertEquals(expected.sorted, StreamITCase.testResults.sorted)
+ }
+
+ @Test
+ def testTableFunction(): 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,
'proctime.proctime)
+ val func = new TableFunc
+
+ val t = table.join(func('rowtime, 'proctime) as 's).select('rowtime,
's)
+
+ val results = t.toDataStream[Row]
+ results.addSink(new StreamITCase.StringSink)
+ env.execute()
+
+ val expected = Seq(
+ "1970-01-01 00:00:00.001,1true",
+ "1970-01-01 00:00:00.002,2true",
+ "1970-01-01 00:00:00.003,3true",
+ "1970-01-01 00:00:00.004,4true",
+ "1970-01-01 00:00:00.007,7true",
+ "1970-01-01 00:00:00.008,8true",
+ "1970-01-01 00:00:00.016,16true")
+ assertEquals(expected.sorted, StreamITCase.testResults.sorted)
+ }
+
+ @Test
+ def testUnion(): 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)
+
+ val t = table.unionAll(table).select('rowtime)
+
+ val results = t.toDataStream[Row]
+ results.addSink(new StreamITCase.StringSink)
+ env.execute()
+
+ val expected = Seq(
+ "1970-01-01 00:00:00.001",
+ "1970-01-01 00:00:00.001",
+ "1970-01-01 00:00:00.002",
+ "1970-01-01 00:00:00.002",
+ "1970-01-01 00:00:00.003",
+ "1970-01-01 00:00:00.003",
+ "1970-01-01 00:00:00.004",
+ "1970-01-01 00:00:00.004",
+ "1970-01-01 00:00:00.007",
+ "1970-01-01 00:00:00.007",
+ "1970-01-01 00:00:00.008",
+ "1970-01-01 00:00:00.008",
+ "1970-01-01 00:00:00.016",
+ "1970-01-01 00:00:00.016")
+ assertEquals(expected.sorted, StreamITCase.testResults.sorted)
+ }
+
+}
+
+object TimeAttributesITCase {
+ class TimestampWithEqualWatermark
+ extends AssignerWithPunctuatedWatermarks[(Long, Int, Double, Float,
BigDecimal, String)] {
+
+ override def checkAndGetNextWatermark(
+ lastElement: (Long, Int, Double, Float, BigDecimal, String),
+ extractedTimestamp: Long)
+ : Watermark = {
+ new Watermark(extractedTimestamp)
+ }
+
+ override def extractTimestamp(
+ element: (Long, Int, Double, Float, BigDecimal, String),
+ previousElementTimestamp: Long): Long = {
+ element._1
+ }
+ }
+
+ class TableFunc extends TableFunction[String] {
+ def eval(time1: Long, time2: Timestamp): Unit = {
+ time1.toString + time2.toString
--- End diff --
should be `collect(time1.toString + time2.toString)`
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