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Posted to issues@spark.apache.org by "ABHISHEK KUMAR GUPTA (Jira)" <ji...@apache.org> on 2019/10/23 14:52:00 UTC

[jira] [Created] (SPARK-29573) Spark should work as PostgreSQL when using + Operator

ABHISHEK KUMAR GUPTA created SPARK-29573:
--------------------------------------------

             Summary: Spark should work as PostgreSQL when using + Operator
                 Key: SPARK-29573
                 URL: https://issues.apache.org/jira/browse/SPARK-29573
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: ABHISHEK KUMAR GUPTA


Spark and PostgreSQL result is different when concatenating as below :

Spark : Giving NULL result 

0: jdbc:hive2://10.18.19.208:23040/default> select * from emp12;
+-----+---------+
| id | name |
+-----+---------+
| 20 | test |
| 10 | number |
+-----+---------+
2 rows selected (3.683 seconds)
0: jdbc:hive2://10.18.19.208:23040/default> select id as ID, id+name as address from emp12;
+-----+----------+
| ID | address |
+-----+----------+
| 20 | NULL |
| 10 | NULL |
+-----+----------+
2 rows selected (0.649 seconds)
0: jdbc:hive2://10.18.19.208:23040/default> select id as ID, id+name as address from emp12;
+-----+----------+
| ID | address |
+-----+----------+
| 20 | NULL |
| 10 | NULL |
+-----+----------+
2 rows selected (0.406 seconds)
0: jdbc:hive2://10.18.19.208:23040/default> select id as ID, id+','+name as address from emp12;
+-----+----------+
| ID | address |
+-----+----------+
| 20 | NULL |
| 10 | NULL |
+-----+----------+

 

PostgreSQL: Saying throwing Error saying not supported

create table emp12(id int,name varchar(255));
insert into emp12 values(10,'number');
insert into emp12 values(20,'test');
select id as ID, id+','+name as address from emp12;

output: invalid input syntax for integer: ","

create table emp12(id int,name varchar(255));
insert into emp12 values(10,'number');
insert into emp12 values(20,'test');
select id as ID, id+name as address from emp12;

Output: 42883: operator does not exist: integer + character varying

 

It should throw Error in Spark if it is not supported.

 



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