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https://issues.apache.org/jira/browse/FLINK-5177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323687#comment-17323687
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Flink Jira Bot commented on FLINK-5177:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Improve nullability handling
> -----------------------------
>
> Key: FLINK-5177
> URL: https://issues.apache.org/jira/browse/FLINK-5177
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: stale-assigned
>
> Currently, all fields of the Table API are marked as nullable by default. A
> lot of null checking could be avoided if we would properly handle
> nullability. Fields of tuples and POJOs with primitive fields can not be
> null. Elements of primitive arrays too. It also includes parameters and
> return types of user-defined scalar, table, and aggregate functions.
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