The following bug has been logged on the website:
Bug reference: 15601
Logged by: Waltênio de Bessa Mendes
Email address: walteniobessa@gmail.com
PostgreSQL version: 11.1
Operating system: Win 10
Description:
ALTER TABLE documento ALTER COLUMN id_doc TYPE SERIAL;
ERROR: type "serial" does not exist
********** Error **********
ERROR: type "serial" does not exist
SQL state: 42704