Allison Wang created SPARK-34678:
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Summary: 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
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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