| /* |
| * 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.{AllDictionaryUtil, ExampleUtils} |
| |
| object AllDictionaryExample { |
| |
| def main(args: Array[String]) { |
| val cc = ExampleUtils.createCarbonContext("AllDictionaryExample") |
| val testData = ExampleUtils.currentPath + "/src/main/resources/data.csv" |
| val csvHeader = "ID,date,country,name,phonetype,serialname,salary" |
| val dictCol = "|date|country|name|phonetype|serialname|" |
| val allDictFile = ExampleUtils.currentPath + "/src/main/resources/data.dictionary" |
| // extract all dictionary files from source data |
| AllDictionaryUtil.extractDictionary(cc.sparkContext, |
| testData, allDictFile, csvHeader, dictCol) |
| // Specify date format based on raw data |
| CarbonProperties.getInstance() |
| .addProperty(CarbonCommonConstants.CARBON_DATE_FORMAT, "yyyy/MM/dd") |
| |
| cc.sql("DROP TABLE IF EXISTS t3") |
| |
| cc.sql(""" |
| CREATE TABLE IF NOT EXISTS t3 |
| (ID Int, date Date, country String, |
| name String, phonetype String, serialname String, salary Int,floatField float) |
| STORED BY 'carbondata' |
| """) |
| |
| cc.sql(s""" |
| LOAD DATA LOCAL INPATH '$testData' into table t3 |
| options('ALL_DICTIONARY_PATH'='$allDictFile', 'single_pass'='true') |
| """) |
| |
| cc.sql(""" |
| SELECT * FROM t3 |
| """).show() |
| |
| cc.sql(""" |
| SELECT * FROM t3 where floatField=3.5 |
| """).show() |
| |
| cc.sql("DROP TABLE IF EXISTS t3") |
| |
| // clean local dictionary files |
| AllDictionaryUtil.cleanDictionary(allDictFile) |
| } |
| |
| } |