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From "Sangeeta Gulia (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CARBONDATA-2155) IS NULL not working correctly on string datatype with dictionary_include in presto integration
Date Fri, 09 Feb 2018 11:39:00 GMT
Sangeeta Gulia created CARBONDATA-2155:
------------------------------------------

             Summary: 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
         Attachments: lineitem.csv

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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