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https://issues.apache.org/jira/browse/FLINK-5832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15907380#comment-15907380
]
ASF GitHub Bot commented on FLINK-5832:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/3456#discussion_r105649084
--- Diff:
flink-connectors/flink-hcatalog/src/test/scala/org/apache/flink/table/hive/functions/utils/ExpressionTestBase.scala
---
@@ -0,0 +1,270 @@
+/*
+ * 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.hive.functions.utils
+
+import java.util
+import java.util.concurrent.Future
+
+import org.apache.calcite.plan.hep.{HepMatchOrder, HepPlanner,
HepProgramBuilder}
+import org.apache.calcite.rex.RexNode
+import org.apache.calcite.sql.`type`.SqlTypeName._
+import org.apache.calcite.sql2rel.RelDecorrelator
+import org.apache.calcite.tools.{Programs, RelBuilder}
+import org.apache.flink.api.common.TaskInfo
+import org.apache.flink.api.common.accumulators.Accumulator
+import org.apache.flink.api.common.functions._
+import org.apache.flink.api.common.functions.util.RuntimeUDFContext
+import org.apache.flink.api.common.typeinfo.BasicTypeInfo._
+import org.apache.flink.api.common.typeinfo.TypeInformation
+import org.apache.flink.api.java.typeutils.RowTypeInfo
+import org.apache.flink.api.java.{DataSet => JDataSet}
+import org.apache.flink.api.scala.{DataSet, ExecutionEnvironment}
+import org.apache.flink.configuration.Configuration
+import org.apache.flink.core.fs.Path
+import org.apache.flink.table.api.{BatchTableEnvironment, TableConfig,
TableEnvironment}
+import org.apache.flink.table.calcite.FlinkPlannerImpl
+import org.apache.flink.table.codegen.{CodeGenerator, Compiler,
GeneratedFunction}
+import org.apache.flink.table.expressions.{Expression, ExpressionParser}
+import org.apache.flink.table.functions.ScalarFunction
+import org.apache.flink.table.plan.nodes.dataset.{DataSetCalc,
DataSetConvention}
+import org.apache.flink.table.plan.rules.FlinkRuleSets
+import org.apache.flink.types.Row
+import org.junit.Assert._
+import org.junit.{After, Before}
+import org.mockito.Mockito._
+
+import scala.collection.mutable
+
+/**
+ * Base test class for expression tests.
+ */
+abstract class ExpressionTestBase {
--- End diff --
You can add a Table API Maven dependency for the `test` scope to access
this class instead of copying.
> Support for simple hive UDF
> ---------------------------
>
> Key: FLINK-5832
> URL: https://issues.apache.org/jira/browse/FLINK-5832
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Zhuoluo Yang
> Assignee: Zhuoluo Yang
>
> The first step of FLINK-5802 is to support simple Hive UDF.
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