Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/20953#discussion_r179343192
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaColumnConvertNotSupportedException.java
---
@@ -0,0 +1,62 @@
+/*
+ * 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
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+ */
+
+package org.apache.spark.sql.execution.datasources.parquet;
+
+import org.apache.spark.annotation.InterfaceStability;
+
+/**
+ * Exception thrown when the parquet reader find column type mismatches.
+ */
+@InterfaceStability.Unstable
+public class ParquetSchemaColumnConvertNotSupportedException extends
RuntimeException {
--- End diff --
@gatorsmile and @yuchenhuo
Why don't we generalize this exception by removing `Parquet` and move to
parent `datasources` package?
Since this exception doesn't carry Parquet-specific information at all,
that would be better for the future.
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