Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19124#discussion_r137132365
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFileFormat.scala
---
@@ -0,0 +1,42 @@
+/*
+ * 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.spark.sql.execution.datasources.orc
+
+import org.apache.orc.TypeDescription
+
+import org.apache.spark.sql.AnalysisException
+import org.apache.spark.sql.types.StructType
+
+private[sql] object OrcFileFormat {
+ private def checkFieldName(name: String): Unit = {
+ try {
+ TypeDescription.fromString(s"struct<$name:int>")
+ } catch {
+ case _: IllegalArgumentException =>
+ throw new AnalysisException(
+ s"""Attribute name "$name" contains invalid character(s).
--- End diff --
`Attribute ` -> `Column`
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