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https://issues.apache.org/jira/browse/FLINK-17762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17109297#comment-17109297
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Jark Wu commented on FLINK-17762:
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Yes. I think we can reuse the implementations. But we may only need to support
PRIMARY KEY in it. I would like to treat is as a bug fix, otherwise, the tables
registered by postgres catalog can't be used as a sink in group by query. Would
you like to take this [~f.pompermaier]?
> Postgres Catalog should pass table's primary key to catalogTable
> ----------------------------------------------------------------
>
> Key: FLINK-17762
> URL: https://issues.apache.org/jira/browse/FLINK-17762
> Project: Flink
> Issue Type: Sub-task
> Reporter: Leonard Xu
> Priority: Major
>
> for upsert query, if the table comes from a catalog rather than create in
> FLINK, Postgres Catalog should pass table's primary key to catalogTable so
> that JdbcDynamicTableSink can determine to work on upsert mode or append only
> mode.
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