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https://issues.apache.org/jira/browse/FLINK-17356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17092458#comment-17092458
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Jark Wu commented on FLINK-17356:
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I went through the PR and it modified the UNIQUE constraint. We may need to
involve more people to review this change, cc [~dwysakowicz].
But I think precision is a small fixing and can be merged quickly if we can
split it into another PR.
> Properly set constraints (PK and UNIQUE)
> ----------------------------------------
>
> Key: FLINK-17356
> URL: https://issues.apache.org/jira/browse/FLINK-17356
> Project: Flink
> Issue Type: Sub-task
> Components: Connectors / JDBC, Table SQL / Ecosystem
> Reporter: Flavio Pompermaier
> Priority: Major
> Labels: pull-request-available
>
> At the moment the PostgresCatalog does not create field constraints (at the
> moment there's only UNIQUE and PRIMARY_KEY in the TableSchema..could it
> worth to add also NOT_NULL?)
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