SET client_min_messages=NOTICE; CREATE EXTENSION multicorn; -- Test that the wrapper option is required on the server. CREATE server multicorn_srv foreign data wrapper multicorn; -- Test that the wrapper option cannot be altered on the table CREATE server multicorn_srv foreign data wrapper multicorn options ( wrapper 'multicorn.testfdw.TestForeignDataWrapper' ); CREATE foreign table testmulticorn ( test1 character varying, test2 character varying ) server multicorn_srv options ( option1 'option1', wrapper 'multicorn.evilwrapper.EvilDataWrapper' ); ALTER server multicorn_srv options (DROP wrapper); CREATE server multicorn_empty_srv foreign data wrapper multicorn; DROP EXTENSION multicorn cascade;