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https://issues.apache.org/jira/browse/FLINK-5832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15907376#comment-15907376
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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_r105646877
--- Diff:
flink-connectors/flink-hcatalog/src/main/scala/org/apache/flink/table/hive/functions/HiveSimpleUDF.scala
---
@@ -0,0 +1,87 @@
+/*
+ * 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
+
+import java.lang.reflect.Method
+import java.math.BigDecimal
+import java.util
+
+import org.apache.flink.table.functions.ScalarFunction
+import org.apache.hadoop.hive.ql.exec.{FunctionRegistry, UDF}
+import
org.apache.hadoop.hive.ql.udf.generic.GenericUDFUtils.ConversionHelper
+import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector
+import
org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory
+import org.apache.hadoop.hive.serde2.typeinfo.{PrimitiveTypeInfo,
TypeInfo, TypeInfoFactory}
+
+import scala.annotation.varargs
+
+/**
+ * A Hive UDF Wrapper which behaves as a Flink-table ScalarFunction.
--- End diff --
The JavaDoc should be extended a little bit. What types are supported?
Restrictions etc. This is a user-facing class, so no comments about Janino etc.
> 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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