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Posted to issues@flink.apache.org by "hehuiyuan (Jira)" <ji...@apache.org> on 2020/07/16 07:26:00 UTC

[jira] [Updated] (FLINK-18613) How to support retract & upsert sink for a TableSink ?

     [ https://issues.apache.org/jira/browse/FLINK-18613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

hehuiyuan updated FLINK-18613:
------------------------------
    Description: 
Environment : FLink 1.9 / Blink planner

Hi , i want to ask a question :

I have a job that executes multiple sql and a TableSink class:

(1) insert into table_0 select count(*) from table1;

(2)insert into table_2 select name, sum(score) form table1 group by name;

 

The TableSink implements UpsertStreamTablesink interface.

That is ok for SQL (2), but is not suppported for SQL (1) which there are not keys.

 

But i want to use a TableSink which can support the upsert and retract , can you give me some advices?   ~ Thanks.

 

  was:
Environment : FLink 1.9 / Blink planner

Hi , i want to ask a question :

I have a job that executes multiple sql and a TableSink class:

(1) insert into table_0 select count(*) from table1;

(2)insert into table_2 select name, sum(score) form table1 group by name;

 

The TableSink implements UpsertStreamTablesink interface.

That is ok for SQL (2), but is not suppported for SQL (1) which there are not keys.

 

But i want to use a TableSink which can support the upsert and retract , can you give me some advices?   ~ Thanks.

 


> How to support retract & upsert sink for a TableSink ?
> ------------------------------------------------------
>
>                 Key: FLINK-18613
>                 URL: https://issues.apache.org/jira/browse/FLINK-18613
>             Project: Flink
>          Issue Type: Wish
>          Components: Table SQL / Planner
>            Reporter: hehuiyuan
>            Priority: Minor
>
> Environment : FLink 1.9 / Blink planner
> Hi , i want to ask a question :
> I have a job that executes multiple sql and a TableSink class:
> (1) insert into table_0 select count(*) from table1;
> (2)insert into table_2 select name, sum(score) form table1 group by name;
>  
> The TableSink implements UpsertStreamTablesink interface.
> That is ok for SQL (2), but is not suppported for SQL (1) which there are not keys.
>  
> But i want to use a TableSink which can support the upsert and retract , can you give me some advices?   ~ Thanks.
>  



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