[jira] [Assigned] (CARBONDATA-921) selecting columns out of order in hive doesn't work

["anubhav tarar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CARBONDATA-921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

anubhav tarar reassigned CARBONDATA-921:
----------------------------------------

    Assignee: anubhav tarar

> selecting columns out of order in hive doesn't work
> ---------------------------------------------------
>
>                 Key: CARBONDATA-921
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-921
>             Project: CarbonData
>          Issue Type: Bug
>          Components: data-query
>         Environment: spark 2.1, hive 1.2.1
>            Reporter: Neha Bhardwaj
>            Assignee: anubhav tarar
>            Priority: Minor
>         Attachments: abc.csv
>
>
> Selecting columns non sequentially(out of the order) fails to render output
> Steps to reproduce:
> 1) In Spark Shell :
> a) Create Table -
> import org.apache.spark.sql.SparkSession
> import org.apache.spark.sql.CarbonSession._
> val carbon = SparkSession.builder().config(sc.getConf).getOrCreateCarbonSession("hdfs://localhost:54310/opt/data")
> scala> carbon.sql(" create table abc(id int, name string) stored by 'carbondata' ").show
> b) Load Data -
> scala> carbon.sql(""" load data inpath 'hdfs://localhost:54310/Files/abc.csv' into table abc """ ).show
> 2) In Hive :
> a) Add Jars -
> add jar /home/neha/incubator-carbondata/assembly/target/scala-2.11/carbondata_2.11-1.1.0-incubating-SNAPSHOT-shade-hadoop2.7.2.jar;
> add jar /opt/spark-2.1.0-bin-hadoop2.7/jars/spark-catalyst_2.11-2.1.0.jar;
> add jar /home/neha/incubator-carbondata/integration/hive/carbondata-hive-1.1.0-incubating-SNAPSHOT.jar;
> b) Create Table -
> create table abc(id int,name string);
> c) Alter location -
> hive> alter table abc set LOCATION 'hdfs://localhost:54310/opt/data/default/abc' ;
> d) Set Properties -
> set hive.mapred.supports.subdirectories=true;
> set mapreduce.input.fileinputformat.input.dir.recursive=true;
> d) Alter FileFormat -
> alter table abc set FILEFORMAT
> INPUTFORMAT "org.apache.carbondata.hive.MapredCarbonInputFormat"
> OUTPUTFORMAT "org.apache.carbondata.hive.MapredCarbonOutputFormat"
> SERDE "org.apache.carbondata.hive.CarbonHiveSerDe";
> e) Queries -
> hive> select id from abc;                     //Works Fine(Column in order)
> hive> select name from abc;               //Doesn't Work(Column out of order)
> hive> select id,name from abc;            //Works Fine(Columns in order)
> hive> select name,id from abc;            //Doesn't Work(Columns out of order)
> Expected output : Query - hive> select name,id from abc;
> display data of the columns specified.
> Actual output : Query - hive> select name,id from abc;
> OK
> Failed with exception java.io.IOException:java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Long
> Time taken: 0.079 seconds



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