examples/spark/src/main/scala/org/apache/carbondata/examples/CarbonExample.scala

/*
 * 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 org.apache.carbondata.core.constants.CarbonCommonConstants
import org.apache.carbondata.core.util.CarbonProperties
import org.apache.carbondata.examples.util.ExampleUtils

object CarbonExample {

  def main(args: Array[String]) {
    val cc = ExampleUtils.createCarbonContext("CarbonExample")
    val testData = ExampleUtils.currentPath + "/src/main/resources/data.csv"

    // Specify date format based on raw data
    CarbonProperties.getInstance()
      .addProperty(CarbonCommonConstants.CARBON_DATE_FORMAT, "yyyy/MM/dd")

    cc.sql("DROP TABLE IF EXISTS t3")

    // Create table, 6 dimensions, 1 measure
    cc.sql("""
           CREATE TABLE IF NOT EXISTS t3
           (ID Int, date Date, country String,
           name String, phonetype String, serialname char(10), salary Int)
           STORED BY 'carbondata'
           """)

    // Load data
    cc.sql(s"""
           LOAD DATA LOCAL INPATH '$testData' into table t3
           """)

    // Perform a query
    cc.sql("""
           SELECT country, count(salary) AS amount
           FROM t3
           WHERE country IN ('china','france')
           GROUP BY country
           """).show()

    // Drop table
    cc.sql("DROP TABLE IF EXISTS t3")
  }

}