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https://issues.apache.org/jira/browse/SPARK-29573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-29573.
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Resolution: Won't Fix
> 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 :
> {code}
> 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
> {code}
>
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