MaxCompute:Functions

Basic operations

• list_functions(): obtains all functions in a specific project.
• exist_function(): checks whether a specific function exists.
• get_function(): obtains a specific function.
• create_function(): creates a function.
• delete_function(): deletes a specific function.

Create a function

# Reference a resource in the current project.
resource = o.get_resource('my_udf.py')
function = o.create_function('test_function', class_type='my_udf.Test', resources=[resource])
# Reference a resource in another project.
resource2 = o.get_resource('my_udf.py', project='another_project')
function2 = o.create_function('test_function2', class_type='my_udf.Test', resources=[resource2])

Delete a function

You can call the delete_function() method of a MaxCompute entry object to delete a function. You can also call the drop() method to delete a function. The following code shows examples of how to delete a function by using the delete_function() and drop() methods:

o.delete_function('test_function')
function.drop()  # Call the drop() method if the function exists.

Update a function

You can call the update() method to update a function. The following code shows an example:

function = o.get_function('test_function')
new_resource = o.get_resource('my_udf2.py')
function.class_type = 'my_udf2.Test'
function.resources = [new_resource, ]
function.update()  # Update the function.