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https://issues.apache.org/jira/browse/FLINK-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251809#comment-15251809
]
ASF GitHub Bot commented on FLINK-3794:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1921#discussion_r60570939
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/api/scala/table/streaming/test/UnsupportedOpsTest.scala
---
@@ -0,0 +1,70 @@
+/*
+ * 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.api.scala.table.streaming.test
+
+import org.apache.flink.api.scala.table._
+import
org.apache.flink.api.scala.table.streaming.test.utils.{StreamITCase,
StreamTestData}
+import org.apache.flink.api.table.{TableException, TableEnvironment}
+import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment
+import org.apache.flink.streaming.util.StreamingMultipleProgramsTestBase
+import org.junit.Test
+
+import scala.collection.mutable
+
+class UnsupportedOpsTest extends StreamingMultipleProgramsTestBase {
+
+ @Test(expected = classOf[TableException])
+ def testSelectWithAggregation(): Unit = {
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env)
+
+ StreamITCase.testResults = mutable.MutableList()
--- End diff --
`testResults` not used.
> Add checks for unsupported operations in streaming table API
> ------------------------------------------------------------
>
> Key: FLINK-3794
> URL: https://issues.apache.org/jira/browse/FLINK-3794
> Project: Flink
> Issue Type: Improvement
> Components: Table API
> Affects Versions: 1.1.0
> Reporter: Vasia Kalavri
> Assignee: Vasia Kalavri
>
> Unsupported operations on streaming tables currently fail during plan
> translation. It would be nicer to add checks in the Table API methods and
> fail with an informative message that the operation is not supported. The
> operations that are not currently supported are:
> - aggregations inside select
> - groupBy
> - distinct
> - join
> We can simply check if the Table's environment is a streaming environment and
> throw an unsupported operation exception.
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