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https://issues.apache.org/jira/browse/FLINK-33547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17786159#comment-17786159
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xuyang commented on FLINK-33547:
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Maybe caused by FLINK-31835.
> SQL primitive array type after upgrading to Flink 1.18.0
> --------------------------------------------------------
>
> Key: FLINK-33547
> URL: https://issues.apache.org/jira/browse/FLINK-33547
> Project: Flink
> Issue Type: Technical Debt
> Components: Table SQL / Runtime
> Affects Versions: 1.18.0
> Reporter: Xingcan Cui
> Priority: Major
>
> We have some Flink SQL UDFs that use object array (Object[]) arguments and
> take boxed arrays (e.g., Float[]) as parameters. After upgrading to Flink
> 1.18.0, the data created by ARRAY[] SQL function became primitive arrays
> (e.g., float[]) and it caused argument mismatch issues. I'm not sure if it's
> expected.
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