addSql('DROP SEQUENCE source_id_seq CASCADE'); $this->addSql('ALTER TABLE source ALTER id TYPE VARCHAR(255)'); $this->addSql('ALTER TABLE source ALTER id DROP DEFAULT'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('CREATE SCHEMA public'); $this->addSql('CREATE SEQUENCE source_id_seq INCREMENT BY 1 MINVALUE 1 START 1'); $this->addSql('ALTER TABLE source ALTER id TYPE INT'); $this->addSql('CREATE SEQUENCE source_id_seq'); $this->addSql('SELECT setval(\'source_id_seq\', (SELECT MAX(id) FROM source))'); $this->addSql('ALTER TABLE source ALTER id SET DEFAULT nextval(\'source_id_seq\')'); } }