Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2181#discussion_r184649184
--- Diff:
examples/spark2/src/main/scala/org/apache/carbondata/examples/DirectSQLExample.scala
---
@@ -0,0 +1,114 @@
+/*
+ * 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.carbondata.core.metadata.datatype.DataTypes
+import org.apache.carbondata.examples.util.ExampleUtils
+import org.apache.carbondata.sdk.file.{CarbonWriter, Field, Schema}
+
+/**
+ * Running SQL on carbondata files directly
+ */
+object DirectSQLExample {
+
+ // prepare SDK writer output
+ def buildTestData(
+ path: String,
+ num: Int = 3,
+ persistSchema: Boolean = false): Any = {
+
+ // getCanonicalPath gives path with \, so code expects /. Need to
handle in code ?
+ val writerPath = path.replace("\\", "/");
+
+ val fields: Array[Field] = new Array[Field](3)
+ fields(0) = new Field("name", DataTypes.STRING)
+ fields(1) = new Field("age", DataTypes.INT)
+ fields(2) = new Field("height", DataTypes.DOUBLE)
+
+ try {
+ val builder = CarbonWriter
+ .builder()
+ .withSchema(new Schema(fields))
+ .outputPath(writerPath)
+ .isTransactionalTable(true)
+ .uniqueIdentifier(System.currentTimeMillis)
+ val writer =
+ if (persistSchema) {
--- End diff --
I mean you can add
```
if (persistSchema) {
builder.persistSchemaFile(true)
}
```
separately
---
