[ 
https://issues.apache.org/jira/browse/FLINK-31212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated FLINK-31212:
-----------------------------------
    Labels: pull-request-available  (was: )

> Data lost if window group after interval left join
> --------------------------------------------------
>
>                 Key: FLINK-31212
>                 URL: https://issues.apache.org/jira/browse/FLINK-31212
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Runtime
>            Reporter: Lyn Zhang
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: image-2023-02-24-17-58-44-461.png, 
> image-2023-02-24-17-58-57-238.png, image-2023-02-24-17-59-25-179.png, 
> image-2023-02-24-18-00-52-891.png, test.sql
>
>
>  
> I have a case in [^test.sql] that some records in table_1 left join fail will 
> be discard by group window.
> I check the interval join operator implements. If one record in left table 
> join right table fail, the record will not emit realtime but emit waiting for 
> half join bound time. In the test.sql, table_1 left join table_2 in 5 minute 
> bound,  and the output will delay 2.5 minute this will cause window discard 
> the records.
> h2. testing
> h4. input:
> !image-2023-02-24-17-58-44-461.png!
> !image-2023-02-24-17-58-57-238.png!
> h4. output:
> expect:
> !image-2023-02-24-18-00-52-891.png!
> real:
> !image-2023-02-24-17-59-25-179.png!



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to