Currently, when a function has no arguments, the function_args()
method, which is supposed to return a vector of string_views
representing the arguments of the function, returns a nullopt
instead, as if it was a functions_resource on all functions
or all functions in a keyspace. As a result, the functions_resource
can't be properly formatted.
This is fixed in this patch by returning an empty vector instead,
and the fix is confirmed in a cql-pytest.
Fixes#13842Closes#13844
a86b9fa0bb