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https://issues.apache.org/jira/browse/FLINK-27275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fangliang Liu updated FLINK-27275:
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Attachment: image-2022-04-17-20-05-31-572.png
> Support null value not update in flink-connector-jdbc
> -----------------------------------------------------
>
> Key: FLINK-27275
> URL: https://issues.apache.org/jira/browse/FLINK-27275
> Project: Flink
> Issue Type: New Feature
> Components: Connectors / JDBC
> Affects Versions: 1.14.3
> Reporter: Fangliang Liu
> Priority: Major
> Attachments: image-2022-04-17-20-05-31-572.png
>
>
> I write data to mysql according to the following statement.
> {code:java}
> CREATE TABLE IF NOT EXISTS t_source (
> `user_id` bigint,
> `A` string,
> `B` string,
> `C` string,
> `flag` varchar(256)
> )WITH (
> 'connector' = 'kafka',
> 'format' = 'canal-json',
> 'scan.startup.mode' = 'latest-offset',
> ... ...
> );
> CREATE TABLE IF NOT EXISTS t_sink (
> `user_id` bigint,
> `A` string,
> `B` string,
> `C` string,
> `flag` varchar(256),
> PRIMARY KEY (`user_id`) NOT ENFORCED
> )WITH (
> 'connector' = 'jdbc',
> 'url' = 'jdbc:mysql://xx.xx.xx.xx:xxx/test',
> 'table-name' = 'user',
> ... ...
> );
> INSERT INTO t_sink(
> `user_id`,
> `A`,
> `B`,
> `C`,
> `flag`
> ) SELECT `user_id`, `A`, `B`, `C`, `flag` FROM t_source;
> {code}
>
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