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https://issues.apache.org/jira/browse/FLINK-20638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250906#comment-17250906
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zoucao commented on FLINK-20638:
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hi Faker ;), from my point of view, Flink preferred to use flink built-in
function, if the function name is same as hive function. In this situation, if
hive function is needed , maybe we can use `create function statement` just
like `create function my_concat_ws as
`org.apache.hadoop.hive.ql.udf.generic.GenericUDFConcatWS`, such that we can
change hive function's name and use it.
> Flink hive modules Function with the same name bug
> --------------------------------------------------
>
> Key: FLINK-20638
> URL: https://issues.apache.org/jira/browse/FLINK-20638
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.12.0
> Reporter: HideOnBush
> Priority: Major
> Attachments: image-2020-12-17-14-32-41-719.png
>
>
> I want to use flink to use hive functions, after introducing hive modules,
> there are functions of the same name, Flink has a higher priority than Hive,
> the same function name, such as timestamp function, how do I distinguish
> between hive and Flink when using it?
> As shown below:
> !image-2020-12-17-14-32-41-719.png!
>
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