select with group by and insertoverwrite to another carbon table

integration/spark-common-test/src/test/resources/overwriteTable1_noRecord.csv

@@ -0,0 +1 @@
+id,name,salary

integration/spark-common-test/src/test/resources/overwriteTable1_someRecord.csv

@@ -0,0 +1,6 @@
+id,name,salary
+1,hello,2300
+2,hi,2500
+3,xyz,4000
+4,xyz1,5000
+5,xyz2,6000

integration/spark-common-test/src/test/resources/overwriteTable2_noRecord.csv

@@ -0,0 +1 @@
+id,name,salary,age

integration/spark-common-test/src/test/resources/overwriteTable2_someRecord.csv

@@ -0,0 +1,4 @@
+id,name,salary,age
+9,abc,48,20
+10,abc1,90,21
+11,abc2,99,22

integration/spark-common-test/src/test/scala/org/apache/carbondata/spark/testsuite/allqueries/InsertIntoCarbonTableTestCase.scala

@@ -18,12 +18,15 @@ package org.apache.carbondata.spark.testsuite.allqueries
 
 import java.io.File
 
+import org.apache.spark.sql.Row
 import org.scalatest.BeforeAndAfterAll
 
 import org.apache.carbondata.core.constants.CarbonCommonConstants
 import org.apache.carbondata.core.util.CarbonProperties
 import org.apache.spark.sql.test.util.QueryTest
 
+import org.apache.carbondata.core.datastore.filesystem.CarbonFile
+import org.apache.carbondata.core.datastore.impl.FileFactory
 import org.apache.carbondata.core.metadata.CarbonMetadata
 import org.apache.carbondata.core.metadata.schema.table.CarbonTable
 import org.apache.carbondata.core.util.path.CarbonStorePath
@@ -38,6 +41,8 @@ class InsertIntoCarbonTableTestCase extends QueryTest with BeforeAndAfterAll {
     sql("drop table if exists THive")
     sql("create table THive (imei string,deviceInformationId int,MAC string,deviceColor string,device_backColor string,modelId string,marketName string,AMSize string,ROMSize string,CUPAudit string,CPIClocked string,series string,productionDate timestamp,bomCode string,internalModels string, deliveryTime string, channelsId string, channelsName string , deliveryAreaId string, deliveryCountry string, deliveryProvince string, deliveryCity string,deliveryDistrict string, deliveryStreet string, oxSingleNumber string, ActiveCheckTime string, ActiveAreaId string, ActiveCountry string, ActiveProvince string, Activecity string, ActiveDistrict string, ActiveStreet string, ActiveOperatorId string, Active_releaseId string, Active_EMUIVersion string, Active_operaSysVersion string, Active_BacVerNumber string, Active_BacFlashVer string, Active_webUIVersion string, Active_webUITypeCarrVer string,Active_webTypeDataVerNumber string, Active_operatorsVersion string, Active_phonePADPartitionedVersions string, Latest_YEAR int, Latest_MONTH int, Latest_DAY Decimal(30,10), Latest_HOUR string, Latest_areaId string, Latest_country string, Latest_province string, Latest_city string, Latest_district string, Latest_street string, Latest_releaseId string, Latest_EMUIVersion string, Latest_operaSysVersion string, Latest_BacVerNumber string, Latest_BacFlashVer string, Latest_webUIVersion string, Latest_webUITypeCarrVer string, Latest_webTypeDataVerNumber string, Latest_operatorsVersion string, Latest_phonePADPartitionedVersions string, Latest_operatorId string, gamePointDescription string,gamePointId double,contractNumber BigInt) ROW FORMAT DELIMITED FIELDS TERMINATED BY ','")
     sql(s"LOAD DATA local INPATH '$resourcesPath/100_olap.csv' INTO TABLE THive")
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
   }
 
   test("insert from hive") {
@@ -276,6 +281,159 @@ class InsertIntoCarbonTableTestCase extends QueryTest with BeforeAndAfterAll {
     }
     sql("LOAD DATA INPATH '" + resourcesPath + "/100_olap.csv' overwrite INTO table TCarbonSourceOverwrite options ('DELIMITER'=',', 'QUOTECHAR'='\', 'FILEHEADER'='imei,deviceInformationId,MAC,deviceColor,device_backColor,modelId,marketName,AMSize,ROMSize,CUPAudit,CPIClocked,series,productionDate,bomCode,internalModels,deliveryTime,channelsId,channelsName,deliveryAreaId,deliveryCountry,deliveryProvince,deliveryCity,deliveryDistrict,deliveryStreet,oxSingleNumber,ActiveCheckTime,ActiveAreaId,ActiveCountry,ActiveProvince,Activecity,ActiveDistrict,ActiveStreet,ActiveOperatorId,Active_releaseId,Active_EMUIVersion,Active_operaSysVersion,Active_BacVerNumber,Active_BacFlashVer,Active_webUIVersion,Active_webUITypeCarrVer,Active_webTypeDataVerNumber,Active_operatorsVersion,Active_phonePADPartitionedVersions,Latest_YEAR,Latest_MONTH,Latest_DAY,Latest_HOUR,Latest_areaId,Latest_country,Latest_province,Latest_city,Latest_district,Latest_street,Latest_releaseId,Latest_EMUIVersion,Latest_operaSysVersion,Latest_BacVerNumber,Latest_BacFlashVer,Latest_webUIVersion,Latest_webUITypeCarrVer,Latest_webTypeDataVerNumber,Latest_operatorsVersion,Latest_phonePADPartitionedVersions,Latest_operatorId,gamePointDescription,gamePointId,contractNumber')")
     assert(rowCount == sql("select imei from TCarbonSourceOverwrite").count())
+
+  }
+
+  test("insert overwrite in group by scenario with t1 no record and t2 no record") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_noRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_noRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,sum(salary) as TotalSalary,'98' as age from OverwriteTable_t1 group by id,name,salary")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(!exists_t1)
+    assert(!exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select * from OverwriteTable_t2"),
+      Seq())
+    checkAnswer(sql("select * from OverwriteTable_t1"),
+      sql("select * from OverwriteTable_t2"))
+  }
+
+
+  test("insert overwrite in group by scenario with t1 no record and t2 some record") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_noRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_someRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,sum(salary) as TotalSalary,'98' as age from OverwriteTable_t1 group by id,name,salary")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(!exists_t1)
+    assert(!exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select * from OverwriteTable_t2"),
+      Seq())
+    checkAnswer(sql("select * from OverwriteTable_t1"),
+      sql("select * from OverwriteTable_t2"))
+  }
+
+  test("insert overwrite in group by scenario having record in both table") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_someRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_someRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,sum(salary) as TotalSalary,'98' as age from OverwriteTable_t1 group by id,name,salary")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(exists_t1)
+    assert(exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select count(*) from OverwriteTable_t1"), sql("select count(*) from OverwriteTable_t2"))
+  }
+
+  test("insert overwrite in group by scenario t1 some record and t2 no record") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_someRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_noRecord.csv' INTO table OverwriteTable_t2")
+    sql("insert overwrite table OverwriteTable_t2 select id,name,sum(salary) as TotalSalary,'98' as age from OverwriteTable_t1 group by id,name,salary")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(exists_t1)
+    assert(exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select count(*) from OverwriteTable_t1"), sql("select count(*) from OverwriteTable_t2"))
+  }
+
+  test("insert overwrite without group by scenario t1 no record and t2 no record") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_noRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_noRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,salary as TotalSalary,'98' as age from OverwriteTable_t1")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(!exists_t1)
+    assert(!exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select * from OverwriteTable_t2"),
+      Seq())
+    checkAnswer(sql("select * from OverwriteTable_t1"),
+      sql("select * from OverwriteTable_t2"))
+  }
+
+
+  test("insert overwrite without group by scenario with t1 no record and t2 some record") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_noRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_someRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,salary as TotalSalary,'98' as age from OverwriteTable_t1")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(!exists_t1)
+    assert(!exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select * from OverwriteTable_t2"),
+      Seq())
+    checkAnswer(sql("select * from OverwriteTable_t1"),
+      sql("select * from OverwriteTable_t2"))
+  }
+
+  test("insert overwrite without group by scenario having record in both table") {
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
+    sql("create table OverwriteTable_t1(id int,name String,salary int) stored by 'carbondata' ")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable1_someRecord.csv' INTO table OverwriteTable_t1")
+    sql("create table OverwriteTable_t2(id int,name String,salary int,age String) stored by 'carbondata'")
+    sql("LOAD DATA INPATH '" + resourcesPath + "/overwriteTable2_someRecord.csv' INTO table OverwriteTable_t2")
+    sql ("insert overwrite table OverwriteTable_t2 select id,name,salary as TotalSalary,'98' as age from OverwriteTable_t1")
+    val rowCountOverwriteT1 = sql("select * from OverwriteTable_t1").count()
+    val rowCountOverwriteT2 = sql("select * from OverwriteTable_t2").count()
+    val exists_t1 = checkSegment("OverwriteTable_t1")
+    val exists_t2 = checkSegment("OverwriteTable_t2")
+    assert(exists_t1)
+    assert(exists_t2)
+    assert(rowCountOverwriteT1 == rowCountOverwriteT2)
+    checkAnswer(sql("select count(*) from OverwriteTable_t1"), sql("select count(*) from OverwriteTable_t2"))
+  }
+
+  private def checkSegment(tableName: String) : Boolean ={
+    val storePath_t1 = metastoredb + s"/warehouse/$tableName/Fact/Part0"
+    val carbonFile_t1: CarbonFile = FileFactory
+      .getCarbonFile(storePath_t1, FileFactory.getFileType(storePath_t1))
+    var exists: Boolean = carbonFile_t1.exists()
+    if (exists) {
+      val listFiles: Array[CarbonFile] = carbonFile_t1.listFiles()
+      exists = listFiles.size > 0
+    }
+    exists
   }
 
   test("test show segments after clean files for insert overwrite") {
@@ -309,6 +467,8 @@ class InsertIntoCarbonTableTestCase extends QueryTest with BeforeAndAfterAll {
     sql("DROP TABLE IF EXISTS student")
     sql("DROP TABLE IF EXISTS uniqdata")
     sql("DROP TABLE IF EXISTS show_insert")
+    sql("drop table if exists OverwriteTable_t1")
+    sql("drop table if exists OverwriteTable_t2")
 
     if (timeStampPropOrig != null) {
       CarbonProperties.getInstance()

integration/spark-common/src/main/scala/org/apache/spark/sql/test/util/QueryTest.scala

@@ -104,6 +104,7 @@ class QueryTest extends PlanTest {
   lazy val storeLocation = CarbonProperties.getInstance().
     getProperty(CarbonCommonConstants.STORE_LOCATION)
   val resourcesPath = TestQueryExecutor.resourcesPath
+  val metastoredb = TestQueryExecutor.metastoredb
   val integrationPath = TestQueryExecutor.integrationPath
   val dblocation = TestQueryExecutor.location
 }

integration/spark2/src/main/scala/org/apache/carbondata/spark/rdd/CarbonDataRDDFactory.scala

@@ -375,7 +375,17 @@ object CarbonDataRDDFactory {
               }
           }
         } else {
-          loadStatus = SegmentStatus.LOAD_FAILURE
+          // if no value is there in data load, make load status Success
+          // and data load flow executes
+          if (dataFrame.isDefined && updateModel.isEmpty) {
+            val rdd = dataFrame.get.rdd
+            if (rdd.partitions == null || rdd.partitions.length == 0) {
+              LOGGER.warn("DataLoading finished. No data was loaded.")
+              loadStatus = SegmentStatus.SUCCESS
+            }
+          } else {
+            loadStatus = SegmentStatus.LOAD_FAILURE
+          }
         }
 
         if (loadStatus != SegmentStatus.LOAD_FAILURE &&
@@ -483,20 +493,21 @@ object CarbonDataRDDFactory {
                      s"${ carbonLoadModel.getDatabaseName }.${ carbonLoadModel.getTableName }")
         throw new Exception(status(0)._2._2.errorMsg)
       }
-      // if segment is empty then fail the data load
+      // as no record loaded in new segment, new segment should be deleted
+      var newEntryLoadStatus =
       if (!carbonLoadModel.getCarbonDataLoadSchema.getCarbonTable.isChildDataMap &&
           !CarbonLoaderUtil.isValidSegment(carbonLoadModel, carbonLoadModel.getSegmentId.toInt)) {
-        // update the load entry in table status file for changing the status to marked for delete
-        CommonUtil.updateTableStatusForFailure(carbonLoadModel)
-        LOGGER.info("********starting clean up**********")
-        CarbonLoaderUtil.deleteSegment(carbonLoadModel, carbonLoadModel.getSegmentId.toInt)
-        LOGGER.info("********clean up done**********")
+
         LOGGER.audit(s"Data load is failed for " +
                      s"${ carbonLoadModel.getDatabaseName }.${ carbonLoadModel.getTableName }" +
                      " as there is no data to load")
         LOGGER.warn("Cannot write load metadata file as data load failed")
-        throw new Exception("No Data to load")
+
+        SegmentStatus.MARKED_FOR_DELETE
+      } else {
+        loadStatus
       }
+
       writeDictionary(carbonLoadModel, result, writeAll = false)
       val loadTablePreStatusUpdateEvent: LoadTablePreStatusUpdateEvent =
         LoadTablePreStatusUpdateEvent(
@@ -505,7 +516,11 @@ object CarbonDataRDDFactory {
         carbonLoadModel)
       operationContext.setProperty("isOverwrite", overwriteTable)
       OperationListenerBus.getInstance().fireEvent(loadTablePreStatusUpdateEvent, operationContext)
-      val done = updateTableStatus(status, carbonLoadModel, loadStatus, overwriteTable)
+      val done = updateTableStatus(status,
+        carbonLoadModel,
+        loadStatus,
+        newEntryLoadStatus,
+        overwriteTable)
       if (!done) {
         CommonUtil.updateTableStatusForFailure(carbonLoadModel)
         LOGGER.info("********starting clean up**********")
@@ -766,17 +781,18 @@ object CarbonDataRDDFactory {
       status: Array[(String, (LoadMetadataDetails, ExecutionErrors))],
       carbonLoadModel: CarbonLoadModel,
       loadStatus: SegmentStatus,
+      newEntryLoadStatus: SegmentStatus,
       overwriteTable: Boolean
   ): Boolean = {
     val carbonTable = carbonLoadModel.getCarbonDataLoadSchema.getCarbonTable
-    val metadataDetails = if (status != null && status(0) != null) {
+    val metadataDetails = if (status != null && status.size > 0 && status(0) != null) {
       status(0)._2._1
     } else {
       new LoadMetadataDetails
     }
     CarbonLoaderUtil.populateNewLoadMetaEntry(
       metadataDetails,
-      loadStatus,
+      newEntryLoadStatus,
       carbonLoadModel.getFactTimeStamp,
       true)
     CarbonUtil

integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/management/CarbonLoadDataCommand.scala

@@ -64,14 +64,6 @@ case class CarbonLoadDataCommand(
 
   override def processData(sparkSession: SparkSession): Seq[Row] = {
     val LOGGER: LogService = LogServiceFactory.getLogService(this.getClass.getCanonicalName)
-    if (dataFrame.isDefined && updateModel.isEmpty) {
-      val rdd = dataFrame.get.rdd
-      if (rdd.partitions == null || rdd.partitions.length == 0) {
-        LOGGER.warn("DataLoading finished. No data was loaded.")
-        return Seq.empty
-      }
-    }
-
     val carbonProperty: CarbonProperties = CarbonProperties.getInstance()
     carbonProperty.addProperty("zookeeper.enable.lock", "false")