Github user qiuchenjian commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2987#discussion_r241619313
--- Diff:
examples/spark2/src/main/scala/org/apache/carbondata/examples/DataFrameSDKS3Example.scala
---
@@ -0,0 +1,184 @@
+/*
+ * 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.carbondata.examples
+
+import java.io.File
+
+import org.apache.commons.io.FileUtils
+import org.apache.hadoop.fs.s3a.Constants
+import org.apache.spark.sql.{DataFrame, Row, SaveMode, SparkSession}
+import org.apache.spark.sql.types._
+
+import org.apache.carbondata.common.logging.LogServiceFactory
+import org.apache.carbondata.core.constants.CarbonCommonConstants
+import org.apache.carbondata.core.datamap.DataMapStoreManager
+
+/**
+ * This example show DataFrame How to read/Write SDK data from/to S3
+ */
+object DataFrameSDKS3Example {
+
+ val rootPath = new File(this.getClass.getResource("/").getPath
+ + "../../../..").getCanonicalPath
+
+ def main(args: Array[String]): Unit = {
--- End diff --
What the purpose of main, I think test case don't use main
---
