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https://issues.apache.org/jira/browse/CALCITE-6995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yu Xu updated CALCITE-6995:
---------------------------
    Description: 
As we know StarRocks/Doris are based on jdbc::mysql protocol and they are both 
support full join. But their dialect are extended from Mysql which not support 
FULL JOIN, can refer to this Jira ticket: 
https://issues.apache.org/jira/browse/CALCITE-4619

At the same time this Jira above not added a test case for full join plan, so 
maybe we need to support full join in StarRocks and Doris and add related test 
case for it.

 

*full join test in StarRocks and Doris(connect link like: 
jdbc::mysql://startrocks.url:9030):*
{code:java}
select * from (select 1 as id,'aa' as name) as a full join (select 1 as id, 
'bb' as name) as b on a.id=b.id;

> 1, aa, 1, bb {code}
 

test in mysql:
{code:java}
select * from (select 1 as id,'aa' as name) as a full join (select 1 as id, 
'bb' as name) as b on a.id=b.id;
> SQL error [1064] [42000]: You have an error in your SQL syntax; check the 
> manual that corresponds to your MySQL server version for the right syntax to 
> use near 'full join (select 1 as id, 'bb' as name) as b on a.id=b.id
LIMIT 0, 200' at line 1 {code}

  was:
As we know StarRocks/Doris are based on jdbc::mysql protocol and they are both 
support full join. But their dialect are extended from Mysql which not support 
FULL JOIN, can refer to this Jira ticket: 
https://issues.apache.org/jira/browse/CALCITE-4619

At the same time this Jira above not added a test case for full join plan, so 
maybe we need to support full join in StarRocks and Doris and add related test 
case for it.

 

*full join test in StarRocks and Doris(connect link like: 
jdbc::mysql://startrocks.url:9030):*
{code:java}
select * from (select 1 as id,'aa' as name) as a full join (select 1 as id, 
'bb' as name) as b on a.id=b.id;

> 1, aa, 1, bb {code}


> StarRocks/Doris should support full join
> ----------------------------------------
>
>                 Key: CALCITE-6995
>                 URL: https://issues.apache.org/jira/browse/CALCITE-6995
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.39.0
>            Reporter: Yu Xu
>            Assignee: Yu Xu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.40.0
>
>
> As we know StarRocks/Doris are based on jdbc::mysql protocol and they are 
> both support full join. But their dialect are extended from Mysql which not 
> support FULL JOIN, can refer to this Jira ticket: 
> https://issues.apache.org/jira/browse/CALCITE-4619
> At the same time this Jira above not added a test case for full join plan, so 
> maybe we need to support full join in StarRocks and Doris and add related 
> test case for it.
>  
> *full join test in StarRocks and Doris(connect link like: 
> jdbc::mysql://startrocks.url:9030):*
> {code:java}
> select * from (select 1 as id,'aa' as name) as a full join (select 1 as id, 
> 'bb' as name) as b on a.id=b.id;
> > 1, aa, 1, bb {code}
>  
> test in mysql:
> {code:java}
> select * from (select 1 as id,'aa' as name) as a full join (select 1 as id, 
> 'bb' as name) as b on a.id=b.id;
> > SQL error [1064] [42000]: You have an error in your SQL syntax; check the 
> > manual that corresponds to your MySQL server version for the right syntax 
> > to use near 'full join (select 1 as id, 'bb' as name) as b on a.id=b.id
> LIMIT 0, 200' at line 1 {code}



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