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https://issues.apache.org/jira/browse/FLINK-10973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701447#comment-16701447
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ASF GitHub Bot commented on FLINK-10973:
----------------------------------------
sunjincheng121 commented on a change in pull request #7167: [FLINK-10973]
[table] Add support for map to table API
URL: https://github.com/apache/flink/pull/7167#discussion_r236949507
##########
File path:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/batch/table/MapITCase.scala
##########
@@ -0,0 +1,120 @@
+/*
+ * 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.batch.table
+
+import org.apache.flink.api.scala._
+import org.apache.flink.api.scala.util.CollectionDataSets
+import org.apache.flink.table.api.TableEnvironment
+import org.apache.flink.table.api.scala._
+import org.apache.flink.table.expressions.utils.{Func1, MapFunc1, MapFunc2,
MapFunc3}
+import
org.apache.flink.table.runtime.utils.TableProgramsTestBase.TableConfigMode
+import org.apache.flink.table.runtime.utils.{StreamITCase,
TableProgramsClusterTestBase}
+import org.apache.flink.test.util.MultipleProgramsTestBase.TestExecutionMode
+import org.apache.flink.test.util.TestBaseUtils
+import org.junit.Assert.assertEquals
+import org.junit.runner.RunWith
+import org.junit.runners.Parameterized
+import org.junit.{Ignore, Test}
+
+import scala.collection.JavaConverters._
+import scala.collection.mutable
+
+@RunWith(classOf[Parameterized])
+class MapITCase(
+ mode: TestExecutionMode,
+ configMode: TableConfigMode)
+ extends TableProgramsClusterTestBase(mode, configMode) {
+
+ @Test
+ def testSimpleMap(): Unit = {
+
+ val env: ExecutionEnvironment =
ExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env, config)
+ StreamITCase.testResults = mutable.MutableList()
+
+ val ds = CollectionDataSets.getSmall3TupleDataSet(env).toTable(tEnv, 'a,
'b, 'c)
+ .map(MapFunc1('a, 'b, 'c))
+
+ val results = ds.collect()
+
+ val expected = mutable.MutableList(
+ "star,1,1,Hi",
+ "star,2,2,Hello",
+ "star,3,2,Hello world").mkString("\n")
+ TestBaseUtils.compareResultAsText(results.asJava, expected)
+ }
+
+ @Test
+ def testScalarResult(): Unit = {
+
+ val env: ExecutionEnvironment =
ExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env, config)
+ StreamITCase.testResults = mutable.MutableList()
+
+ val ds = CollectionDataSets.getSmall3TupleDataSet(env).toTable(tEnv, 'a,
'b, 'c)
+ .map(Func1('a))
+
+ val results = ds.collect()
+
+ val expected = mutable.MutableList(
+ "2",
+ "3",
+ "4").mkString("\n")
+ TestBaseUtils.compareResultAsText(results.asJava, expected)
+ }
+
+ @Test
+ def testMultiMap(): Unit = {
+
+ val env: ExecutionEnvironment =
ExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env, config)
+ StreamITCase.testResults = mutable.MutableList()
+
+ val ds = CollectionDataSets.getSmall3TupleDataSet(env).toTable(tEnv, 'a,
'b, 'c)
+ .map(MapFunc1('a, 'b, 'c))
+ .map(MapFunc2('_c0, '_c1, '_c2, '_c3))
+
+ val results = ds.collect()
+
+ val expected = mutable.MutableList(
+ "star,2,1,Hi",
+ "star,3,2,Hello",
+ "star,4,2,Hello world").mkString("\n")
+ TestBaseUtils.compareResultAsText(results.asJava, expected)
+ }
+
+ @Ignore("This test is disabled because of:
https://issues.apache.org/jira/browse/FLINK-10834"; +
+ "and will be opened after FLINK-10834 is fixed.")
+ @Test
Review comment:
@Ignore("Will be open when FLINK-10834 has been fixed.") ?
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> Add Map operator to Table API
> -----------------------------
>
> Key: FLINK-10973
> URL: https://issues.apache.org/jira/browse/FLINK-10973
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: Dian Fu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.8.0
>
>
> Add Map operator to Table API as described in [Google
> doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr]
> The usageļ¼
> {code:java}
> val res = tab
> .map(fun: ScalarFunction) // output has columns 'a, 'b, 'c
> .select('a, 'c)
> {code}
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