-- allow pronouns to be null
ALTER TABLE pronouns ADD COLUMN pronouns_nullable_tmp TEXT;
UPDATE pronouns SET pronouns_nullable_tmp = pronouns;
ALTER TABLE pronouns DROP COLUMN pronouns;
ALTER TABLE pronouns RENAME COLUMN pronouns_nullable_tmp TO pronouns;

-- change table name
ALTER TABLE pronouns RENAME TO users;

-- add authentication field
ALTER TABLE users ADD COLUMN auth BLOB;