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https://issues.apache.org/jira/browse/SPARK-34678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17298352#comment-17298352
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Apache Spark commented on SPARK-34678:
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User 'allisonwang-db' has created a pull request for this issue:
https://github.com/apache/spark/pull/31791
> Add table function registry
> ---------------------------
>
> Key: SPARK-34678
> URL: https://issues.apache.org/jira/browse/SPARK-34678
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Allison Wang
> Priority: Major
>
> Currently, Spark resolves table-valued functions, for example, range, very
> differently from non-table valued functions. Also, there is no information
> displayed for table-valued functions. For example:
> {code:scala}
> scala> sql("describe function range").show(false)
> +--------------------------+
> |function_desc |
> +--------------------------+
> |Function: range not found.|
> +--------------------------+
> {code}
> To make the behavior consistent, we can add a table function registry and
> resolve the table-valued function from the catalog.
> This also allows Spark to have more built-in table-valued functions in the
> future.
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