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https://issues.apache.org/jira/browse/FLINK-16688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17065262#comment-17065262
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Rui Li commented on FLINK-16688:
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I didn't check how spark deals with this problem. My guess is spark uses its
own implementations for these functions, instead of calling Hive's
implementations.
> Hive-connector should set SessionState for hive
> -----------------------------------------------
>
> Key: FLINK-16688
> URL: https://issues.apache.org/jira/browse/FLINK-16688
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.10.0
> Reporter: Jingsong Lee
> Priority: Major
> Fix For: 1.10.1, 1.11.0
>
>
> Without SessionState like GenericUDFUnixTimeStamp can not be used.
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