DESC FUNCTION - MaxCompute - Alibaba Cloud Documentation Center

Returns the metadata of a specified user-defined function (UDF) in a MaxCompute project, including its name, owner, creation time, implementing class, and associated resources.

Syntax

desc function <function_name>;

Parameters

Parameter	Required	Description
`function_name`	Yes	The name of an existing function.

Return values

Field	Description
`Name`	The name of the UDF.
`Owner`	The account that owns the UDF.
`Created Time`	The time when the UDF was created.
`Class`	The implementing class of the UDF. Case-sensitive — must match the class name exactly as compiled.
`Resources`	The list of resources that are used by the UDF.

Example

The following example returns the metadata of the my_lower function:

desc function my_lower;

Output:

Name                                    my_lower
Owner                                   ALIYUN$****
Created Time                            2020-06-18 15:50:19
Class                                   org.alidata.odps.udf.examples.Lower
Resources                               project_name/my_lower.jar

The Class field is case-sensitive.

What's next

FUNCTION: Create a temporary SQL function scoped to the current SQL script, without storing it in the MaxCompute metadata system.
CREATE FUNCTION: Register a UDF in MaxCompute using the create_function() method of the entry object.
DROP FUNCTION: Remove a registered UDF from a MaxCompute project.
DELETE FUNCTION: Delete a function using the delete_function() method of the entry object.
UPDATE FUNCTION: Update a registered UDF by calling the update() method of the entry object.
LIST FUNCTIONS: View the metadata of all UDFs in a MaxCompute project.