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https://issues.apache.org/jira/browse/FLINK-30386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lincoln lee closed FLINK-30386.
-------------------------------
Resolution: Fixed
fixed in master: e69e6514d0b901eb03f1a8bfc499680d076248c9
> Column constraint lacks primary key not enforced check
> ------------------------------------------------------
>
> Key: FLINK-30386
> URL: https://issues.apache.org/jira/browse/FLINK-30386
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.16.0, 1.15.2, 1.15.3
> Reporter: Jane Chan
> Assignee: Jane Chan
> Priority: Major
> Labels: pull-request-available
>
> Currently, only table constraint performs the enforced check. Not sure if it
> is by design or a bug.
> The following case can be reproduced on Flink 1.16.0, 1.15.3, and 1.15.2. I
> think the earlier version might also reveal it.
> {code:sql}
> Flink SQL> create table T (f0 int not null primary key, f1 string) with
> ('connector' = 'datagen');
> [INFO] Execute statement succeed.
> Flink SQL> explain select * from T;
> == Abstract Syntax Tree ==
> LogicalProject(f0=[$0], f1=[$1])
> +- LogicalTableScan(table=[[default_catalog, default_database, T]])
> == Optimized Physical Plan ==
> TableSourceScan(table=[[default_catalog, default_database, T]], fields=[f0,
> f1])
> == Optimized Execution Plan ==
> TableSourceScan(table=[[default_catalog, default_database, T]], fields=[f0,
> f1])
> Flink SQL> create table S (f0 int not null, f1 string, primary key(f0)) with
> ('connector' = 'datagen');
> [ERROR] Could not execute SQL statement. Reason:
> org.apache.flink.table.api.ValidationException: Flink doesn't support
> ENFORCED mode for PRIMARY KEY constraint. ENFORCED/NOT ENFORCED controls if
> the constraint checks are performed on the incoming/outgoing data. Flink does
> not own the data therefore the only supported mode is the NOT ENFORCED mode
> {code}
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