ALTER TABLE projects
ADD COLUMN main_branch varchar(128) NOT NULL DEFAULT 'main',
DROP COLUMN default_branch;
ALTER TABLE users
ADD COLUMN default_main_branch varchar(128) NOT NULL DEFAULT 'main';
ALTER TABLE projects
ADD COLUMN main_branch varchar(128) NOT NULL DEFAULT 'main',
DROP COLUMN default_branch;
ALTER TABLE users
ADD COLUMN default_main_branch varchar(128) NOT NULL DEFAULT 'main';