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https://issues.apache.org/jira/browse/CARBONDATA-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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anubhav tarar reassigned CARBONDATA-2155:
-----------------------------------------

    Assignee: anubhav tarar

> IS NULL not working correctly on string datatype with dictionary_include in 
> presto integration
> ----------------------------------------------------------------------------------------------
>
>                 Key: CARBONDATA-2155
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2155
>             Project: CarbonData
>          Issue Type: Bug
>          Components: presto-integration
>    Affects Versions: 1.3.0
>         Environment: Spark-2.1
> Presto 0.187
>            Reporter: Sangeeta Gulia
>            Assignee: anubhav tarar
>            Priority: Minor
>         Attachments: lineitem.csv
>
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> Steps to reproduce:
> 1) Create table on carbondata and load data to it.
> create table if not exists lineitem_carbon1(
> L_SHIPDATE date,
> L_SHIPMODE string,
> L_SHIPINSTRUCT string,
> L_RETURNFLAG string,
> L_RECEIPTDATE date,
> L_ORDERKEY string,
> L_PARTKEY string,
> L_SUPPKEY   string,
> L_LINENUMBER int,
> L_QUANTITY double,
> L_EXTENDEDPRICE double,
> L_DISCOUNT double,
> L_TAX double,
> L_LINESTATUS string,
> L_COMMITDATE date,
> L_COMMENT  string
> ) STORED BY 'carbondata'
> TBLPROPERTIES 
> ('DICTIONARY_INCLUDE'='L_SHIPMODE,L_SHIPINSTRUCT,L_RETURNFLAG,L_LINESTATUS', 
> 'table_blocksize'='300', 'no_inverted_index'='L_ORDERKEY, L_PARTKEY, 
> L_SUPPKEY, L_COMMENT');
> load data inpath 
> "hdfs://localhost:54310/user/hduser/input-files/lineitem.csv" into table 
> lineitem_carbon1 options('DATEFORMAT' = 
> 'yyyy-MM-dd','DELIMITER'='|','FILEHEADER'='L_ORDERKEY,L_PARTKEY,L_SUPPKEY,L_LINENUMBER,L_QUANTITY,L_EXTENDEDPRICE,L_DISCOUNT,L_TAX,L_RETURNFLAG,L_LINESTATUS,L_SHIPDATE,L_COMMITDATE,L_RECEIPTDATE,L_SHIPINSTRUCT,L_SHIPMODE,L_COMMENT','BAD_RECORDS_LOGGER_ENABLE'='true',
>  'BAD_RECORDS_ACTION'='FORCE');
> 1: jdbc:hive2://localhost:10000> select l_shipmode from lineitem_carbon1 
> where l_shipmode is NULL;
> +-------------+--+
> | l_shipmode |
> +-------------+--+
> | NULL |
> +-------------+–+
> 2) Access the same table from presto-cli and try to run select query form 
> there:
> presto:performance> select l_shipmode from lineitem_carbon1 where l_shipmode 
> is NULL;
>  l_shipmode 
> ------------
> (0 rows)
>  Expected Result: It should be same as result from carbon.



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