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From "Hyukjin Kwon (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-29573) Spark should work as PostgreSQL when using + Operator
Date Mon, 28 Oct 2019 12:31:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-29573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960995#comment-16960995
] 

Hyukjin Kwon commented on SPARK-29573:
--------------------------------------

[~abhishek.akg] can you please use \{code\} ... \{code\} block?

> 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
>            Priority: Major
>
> Spark and PostgreSQL result is different when concatenating as below :
> Spark : Giving NULL result 
> {code}
> 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 |
> +-----+----------+
> {code}
>  
> PostgreSQL: Saying throwing Error saying not supported
> {code}
> 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
> {code}
>  
> It should throw Error in Spark if it is not supported.
>  



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