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https://issues.apache.org/jira/browse/FLINK-7923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346756#comment-16346756
]
ASF GitHub Bot commented on FLINK-7923:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/5367#discussion_r165038256
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/stream/sql/CalcTest.scala
---
@@ -0,0 +1,47 @@
+/*
+ * 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.stream.sql
+
+import org.apache.flink.api.scala._
+import org.apache.flink.table.api.scala._
+import org.apache.flink.table.utils.TableTestBase
+import org.apache.flink.table.utils.TableTestUtil._
+import org.junit.Test
+
+class CalcTest extends TableTestBase {
+
+ @Test
+ def testArrayElement(): Unit = {
+ val util = streamTestUtil()
+ util.addTable[(Long, Array[(String, Int)])]("MyTable", 'a, 'b)
+
+ val expected = unaryNode(
+ "DataStreamCalc",
+ streamTableNode(0),
+ term("select",
+ "a",
+ "DOT(ITEM(b, 1), '_1') AS b11"
--- End diff --
Actually we don't need a full table test for this. As it only tests a
scalar operation. Can you move the test to `CompositeAccessTest` and test it
for all APIs.
> SQL parser exception when accessing subfields of a Composite element in an
> Object Array type column
> ---------------------------------------------------------------------------------------------------
>
> Key: FLINK-7923
> URL: https://issues.apache.org/jira/browse/FLINK-7923
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: Rong Rong
> Assignee: Shuyi Chen
> Priority: Major
>
> Access type such as:
> {code:SQL}
> SELECT
> a[1].f0
> FROM
> MyTable
> {code}
> will cause problem.
> See following test sample for more details:
> https://github.com/walterddr/flink/commit/03c93bcb0fb30bd2d327e35b5e244322d449b06a
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