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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2023/05/05 11:44:00 UTC

[jira] [Updated] (FLINK-32001) SupportsRowLevelUpdate does not support returning only a part of the columns.

     [ https://issues.apache.org/jira/browse/FLINK-32001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-32001:
-----------------------------------
    Labels: pull-request-available  (was: )

> SupportsRowLevelUpdate does not support returning only a part of the columns.
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-32001
>                 URL: https://issues.apache.org/jira/browse/FLINK-32001
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Runtime
>    Affects Versions: 1.17.0
>            Reporter: Ming Li
>            Priority: Major
>              Labels: pull-request-available
>
> [FLIP-282|https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=235838061] introduces the new Delete and Update API in Flink SQL. Although it is described in the documentation that in case of {{partial-update}} we only need to return the primary key columns and the updated columns.
> But in fact, the topology of the jobĀ  is {{{}source -> cal -> constraintEnforcer -> sink{}}}, and the constraint check will be performed in the operator of {{{}constraintEnforcer{}}}, which is done according to index, not according to column. If only some columns are returned, the constraint check is wrong, and it is easy to generate {{{}ArrayIndexOutOfBoundsException{}}}.



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