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https://issues.apache.org/jira/browse/FLINK-10152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640557#comment-16640557
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ASF GitHub Bot commented on FLINK-10152:
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Guibo-Pan commented on issue #6773: [FLINK-10152] [table] Add reverse function
in Table API and SQL
URL: https://github.com/apache/flink/pull/6773#issuecomment-427545460
Hi, @yanghua thanks for your suggestion, I've add some examples in docs.
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> Add reverse supported in TableAPI and SQL
> -----------------------------------------
>
> Key: FLINK-10152
> URL: https://issues.apache.org/jira/browse/FLINK-10152
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Guibo Pan
> Assignee: Guibo Pan
> Priority: Major
> Labels: pull-request-available
>
> reverse is useful function for procession String.
> for example:
> {code:java}
> select reverse("abcd") // return "dcba"
> {code}
> It is supported as a UDF in Hive, more details please see[1] [1]:
> https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-StringFunctions
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