integration/spark/src/test/scala/org/apache/carbondata/spark/testsuite/detailquery/SubqueryWithFilterAndSortTestCase.scala

/*
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 * 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
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.carbondata.spark.testsuite.detailquery

import org.scalatest.BeforeAndAfterAll
import org.apache.carbondata.core.datastore.impl.FileFactory
import org.apache.carbondata.core.datastore.impl.FileFactory.FileType
import org.apache.spark.sql.test.util.QueryTest

class SubqueryWithFilterAndSortTestCase extends QueryTest with BeforeAndAfterAll {
  val tempDirPath = s"$resourcesPath/temp"
  val tempFilePath = s"$resourcesPath/temp/subqueryfilterwithsort.csv"

  override def beforeAll {
    FileFactory.mkdirs(tempDirPath)
    sql("drop table if exists subqueryfilterwithsort")
    sql("drop table if exists subqueryfilterwithsort_hive")
    sql("CREATE TABLE subqueryfilterwithsort (name String, id int) STORED AS carbondata")
    sql("CREATE TABLE subqueryfilterwithsort_hive (name String, id int)row format delimited fields terminated by ','")
    val data ="name_a,1\nname_b,2\nname_c,3\nname_d,4\nname_e,5\nname_f,6"
    writedata(tempFilePath, data)
    sql(s"LOAD data local inpath '${tempFilePath}' into table subqueryfilterwithsort options('fileheader'='name,id')")
    sql(s"LOAD data local inpath '${tempFilePath}' into table subqueryfilterwithsort_hive")
  }

  test("When the query has sub-query with sort and has '=' filter") {
    try {
      checkAnswer(sql("select name,id from (select * from subqueryfilterwithsort order by id)t where name='name_c' "),
        sql("select name,id from (select * from subqueryfilterwithsort_hive order by id)t where name='name_c'"))
    } catch{
      case ex:Exception => ex.printStackTrace()
        assert(false)
    }
  }

  test("When the query has sub-query with sort and has 'like' filter") {
    try {
      checkAnswer(sql("select name,id from (select * from subqueryfilterwithsort order by id)t where name like 'name%' "),
        sql("select name,id from (select * from subqueryfilterwithsort_hive order by id)t where name like 'name%'"))
    } catch{
      case ex:Exception => ex.printStackTrace()
        assert(false)
    }
  }

  def writedata(filePath: String, data: String) = {
    val dis = FileFactory.getDataOutputStream(filePath)
    dis.writeBytes(data.toString())
    dis.close()
  }
  def deleteFile(filePath: String) {
    val file = FileFactory.getCarbonFile(filePath)
    file.delete()
  }

  override def afterAll {
    sql("drop table if exists subqueryfilterwithsort")
    sql("drop table if exists subqueryfilterwithsort_hive")
    deleteFile(tempFilePath)
  }

}