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https://issues.apache.org/jira/browse/FLINK-3739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241135#comment-15241135
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ASF GitHub Bot commented on FLINK-3739:
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Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1880#issuecomment-209938196
Shouldn't the program fail if we encounter `null` values in the non-null
mode? Replacing `null` with default values sounds wrong to me and can easily
produce wrong results without anybody noticing it.
> Add a null literal to Table API
> -------------------------------
>
> Key: FLINK-3739
> URL: https://issues.apache.org/jira/browse/FLINK-3739
> Project: Flink
> Issue Type: Improvement
> Components: Table API
> Reporter: Timo Walther
> Assignee: Timo Walther
>
> The Table API needs support for the null literal e.g. for passing null values
> to functions.
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