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https://issues.apache.org/jira/browse/FLINK-4550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15516700#comment-15516700
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ASF GitHub Bot commented on FLINK-4550:
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Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/2502
> Clearly define SQL operator table
> ---------------------------------
>
> Key: FLINK-4550
> URL: https://issues.apache.org/jira/browse/FLINK-4550
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Timo Walther
> Labels: starter
>
> Currently, we use {{SqlStdOperatorTable.instance()}} for setting all
> supported operations. However, not all of them are actually supported.
> {{FunctionCatalog}} should only return those operators that are tested and
> documented.
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